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Next page > FH: 00408555 Bryoria fremontii (Tuckerman) Brodo & D. Hawksworth USA: California [data not captured] J. T. Howell 1934
FH: 00197185 Dichonema sericeum (Swartz) Montagne Ecuador: Galapagos Province Indefatigable Island [Isla Santa Cruz], on w... J. T. Howell 4 1932-5-10
FH: 00455308 Niebla cephalota (Tuckerman) Rundel & Bowler Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-16
FH: 00455255 Niebla ceruchis (Acharius) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1931-11-15
FH: 00455258 Niebla ceruchis (Acharius) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1931-11-15
FH: 00455320 Niebla combeoides (Nylander) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1932-8-17
FH: 00455389 Niebla homalea (Acharius) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1931-11-16
FH: 00455391 Niebla homalea (Acharius) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1931-11-15
FH: 00455394 Niebla homalea (Acharius) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1931-11-15
FH: 00455390 Niebla homalea (Acharius) Rundel & Bowler USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00455392 Niebla homalea (Acharius) Rundel & Bowler USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00469250 Parmotrema perforatum (Acharius) A. Massalongo Mexico: [data not captured] J. T. Howell 1932-3-27
FH: 00492352 Parmotrema perlatum (Hudson) M. Choisy Mexico: Colima Socorro Island: [no additional data] J. T. Howell 1932-3-26
FH: 00472196 Physcia adscendens (Fries) H. Olivier Mexico: [data not captured] J. T. Howell 1931-11-14
FH: 00197405 Physcia aegialita (Afzelius ex Acharius) Nylander Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00472361 Physcia cascadensis H. Magnusson Mexico: [data not captured] J. T. Howell 1932-3-22
FH: 00472016 Physcia howellii Linder Mexico: [data not captured] J. T. Howell 1932-3-27
FH: 00472361 Physcia phaea (Tuckerman) J. W. Thompson Mexico: [data not captured] J. T. Howell 1932-3-22
FH: 00197405 Physcia picta (Swartz) Nylander Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00302985 Polychidium albociliatum (Desmazières) Zahlbruckner USA: California north slope of Junipero Serra Peak, Santa Lu... J. T. Howell 1955-5-17
FH: 00259147 Psorotichia squamulosa Zahlbruckner Mexico: Revillagigedo Islands, summit of Clarion Isl... J. T. Howell 20 1932-3-23
FH: 00480977 Teloschistes flavicans (Swartz) Norman Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-15
FH: 00438999 Xanthoparmelia conspersa (Ehrhart ex Acharius) Hale Mexico: [data not captured] J. T. Howell 9 1931
Acanthaceae A: 00424476 Beloperone californica Bentham USA: California two miles east of Shaver's Well, Colorado De... J. T. Howell 3306 1928-1-30
A: 00424476 Justicia californica (Bentham) D. N. Gibson USA: California two miles east of Shaver's Well, Colorado De... J. T. Howell 3306 1928-1-30
Adiantaceae GH: 00898684 Pentagramma triangularis (Kaulfuss) Yatskievych, Windham & E. Wollenweber USA: California 9 mi. ne. of Oroville, Feather River Highway J. T. Howell 34696 1959-9-20
GH: 00898684 Pityrogramma triangularis semipallida J. T. Howell USA: California 9 mi. ne. of Oroville, Feather River Highway J. T. Howell 34696 1959-9-20
Agaricaceae FH: 00374173 Montagnites candollei Fries Ecuador: Galapagos Province [no additional data] J. T. Howell 1931
Agavaceae GH: 00357548 Nolina cismontana Dice USA: California Claymine Canyon, n. Santa Ana Mts., Orange C... J. T. Howell 2827 1927-7-24
Aizoaceae GH: 01860010 Cypselea humifusa Turpin USA: California Lake Lagunitas, Marin County J. T. Howell 15327 1939-8-27
GH: 01860046 Mesembryanthemum elongatum Haworth USA: California San Francisco: just east of lake Merced J. T. Howell 19337 1943-10-30
GH: 00037492 Mollugo crockeri J. T. Howell Ecuador: Galapagos Province Crevices of lava near shore, Sullivan Bay, J... J. T. Howell 10094 1932-6-14
GH: 00037494 Mollugo floriana gypsophiloides J. T. Howell Ecuador: Galapagos Province Middle eastern part of Duncan [Pinzon] Islan... J. T. Howell 9828 1932-6-7
GH: 00037496 Mollugo insularis J. T. Howell Ecuador: Galapagos Province Black Beach, Charles [Santa Maria] Island J. T. Howell 9378 1932-5-19
Alismataceae GH: 01632027 Alisma triviale Pursh USA: California Crescent Mills J. T. Howell 49707 1973-7-9
Amaranthaceae GH: 00036955 Alternanthera filifolia margaritacea J. T. Howell Ecuador: Galapagos Province Albemarle [Isabela] Island, Iguana Cove J. T. Howell 9416 1932-5-21
GH: 00376131 Amaranthus Linnaeus USA: California Near San Rafael J. T. Howell 21473 1945-9-16
GH: 01928760 Amaranthus blitoides S. Watson USA: California San Antonio Creek J. T. Howell 15351 1939-9-3
GH: 01928898 Amaranthus californicus (Moquin-Tandon) S. Watson USA: California Lake Lagunitas, Mt. Tamalpais J. T. Howell 22998 1946-9-8
GH: 01928989 Amaranthus deflexus Linnaeus USA: California Sausalito J. T. Howell 1939-11-5
GH: 01928990 Amaranthus deflexus Linnaeus USA: California San Rafael J. T. Howell 19852 1944-7-23
GH: 01929294 Amaranthus powellii S. Watson USA: California Near Novato J. T. Howell 15341 1939-9-3
GH: 00376129 Amaranthus sp. USA: California Desiccated strand of Alpine Lake J. T. Howell 24189 1947-10-19
GH: 00376131 Amaranthus sp. USA: California Near San Rafael J. T. Howell 21473 1945-9-16
GH: 01781609 Chenopodiastrum murale (Linnaeus) S. Fuentes, Uotila & Borsch USA: California [data not captured] J. T. Howell 30910 1955-9-7
Amblystegiaceae FH: 00544438 Amblystegium juratzkanum Schimper USA: Oregon [data not captured] J. T. Howell 1931-6-8
FH: 00544641 Amblystegium serpens (Linnaeus) Schimper USA: California [no additional data] J. T. Howell 33
FH: 00839278 Hygrohypnum ochraceum (Turner ex Wilson) Loeske USA: California [data not captured] J. T. Howell 1942-8-3
FH: 00839289 Hygrohypnum ochraceum (Turner ex Wilson) Loeske USA: Washington [data not captured] J. T. Howell 1931-7-18
FH: 00839338 Hygrohypnum smithii (Swartz) Brotherus USA: California [data not captured] J. T. Howell 1942-7-29
Anacardiaceae A: 00364984 Malosma laurina (Nuttall) Nuttall ex Abrams USA: California Claymine Canyon, n. Santa Ana Mts. J. T. Howell 2826 1927-7-24
GH: 00347274 Rhus diversiloba Torrey & A. Gray USA: California San Francisco: summit ridge of Bayview Hills... J. T. Howell 31916 1956-10-21
GH: 00347276 Rhus diversiloba Torrey & A. Gray USA: California San Francisco: summit of Bayview Hills J. T. Howell 31915 1956-10-21
A: 00347284 Rhus diversiloba Torrey & A. Gray USA: California Near junction of Jungle Blue and Scott Mt. c... J. T. Howell 12826 1936-8-26
A: 00347072 Rhus integrifolia (Nuttall) Bentham & Hooker f. ex W. H. Brewer & S. Watson USA: California Santa Ana Canyon J. T. Howell 2545 1927-6-16
GH: 00347200 Rhus trilobata Nuttall USA: California Near Bartlett Springs J. T. Howell 21209 1945-6-21
A: 00347330 Rhus trilobata anisophylla (Greene) Jepson USA: California Quail Springs, Morongo Mts., San Bernardino ... J. T. Howell 3399 1928-3-10
GH: 00347274 Toxicodendron diversilobum (Torrey & A. Gray) Greene USA: California San Francisco: summit ridge of Bayview Hills... J. T. Howell 31916 1956-10-21
GH: 00347276 Toxicodendron diversilobum (Torrey & A. Gray) Greene USA: California San Francisco: summit of Bayview Hills J. T. Howell 31915 1956-10-21
A: 00347284 Toxicodendron diversilobum (Torrey & A. Gray) Greene USA: California Near junction of Jungle Blue and Scott Mt. c... J. T. Howell 12826 1936-8-26
Anthocerotaceae FH: 00495039 Anthoceros fusiformis Austin USA: California [data not captured] J. T. Howell 1936-5-7
FH: 00495105 Anthoceros pearsonii M. Howe USA: California [data not captured] J. T. Howell 1936-5-7
Apiaceae GH: 00404463 Ligusticum grayi J. M. Coulter & Rose USA: California Caribou Basin, Salmon-Trinity Alps J. T. Howell 13461 1937-7-25
GH: 00424286 Lomatium insulare (Eastwood) Munz USA: California San Nicolas Island J. T. Howell 8207 1932-3-12
GH: 00424333 Perideridia gairdneri (Hooker & Arnott) Mathias USA: California Montezuma Hills J. T. Howell 11689 1933-9-17
GH: 00424339 Perideridia pringlei (J. M. Coulter & Rose) A. Nelson & J. F. Macbride USA: California 0.5 miles south of Bodfish Gap on road to Ha... J. T. Howell 47721 1971-6-15
GH: 00424355 Podistera nevadensis (A. Gray) S. Watson USA: California Mono Pass J. T. Howell 20647 1944-8-16
GH: 00424366 Sanicula saxatilis Greene USA: California Eagle Peak, Mt. Diablo J. T. Howell 16969 1942-5-24
GH: 00424367 Sanicula saxatilis Greene USA: California Ridge east of Deer Park, Mt. Diablo J. T. Howell 16180 1941-4-6
Apocynaceae GH: 02115309 Cycladenia humilis venusta (Eastwood) Woodson ex Munz USA: California north slope of summit of Junipero Serra Peak... J. T. Howell 30533 1955-7-7
A: 02382483 Plumeria rubra Linnaeus Costa Rica: Braxilito Bay J. T. Howell 10191 1932-7-2
A: 02382482 Plumeria rubra Linnaeus Mexico: Nayarit Maria Madre; Flora of the Tres Marias Island... J. T. Howell 10493 1932-7-26
A: 02383312 Rauvolfia tetraphylla Linnaeus Nicaragua: East base of Coseguina Volcano J. T. Howell 10257 1932-7-6
Aspleniaceae GH: 00424487 Asplenium septentrionale (Linnaeus) Hoffmann USA: California Columbine Lake J. T. Howell 17803 1942-8-7
Asteraceae GH: 01924335 Ageratina havanensis (Kunth) R. M. King & H. Robinson USA: California Strawberry Canon, south side, Berkeley Hills J. T. Howell 4714 1930-4-17
GH: 01924856 Ageratina occidentalis (Hooker) R. M. King & H. Robinson USA: California Hawkins Bar J. T. Howell 13710 1937-7-31
GH: 02140864 Agoseris apargioides eastwoodiae (Fedde) Munz USA: California [data not captured] J. T. Howell 4730 1930-4-20
GH: 02141428 Agoseris grandiflora (Nuttall) Greene USA: California [data not captured] J. T. Howell 16282 1941-6-10
GH: 02141412 Agoseris grandiflora (Nuttall) Greene USA: California [data not captured] J. T. Howell 20930 1945-6-3
GH: 02141422 Agoseris grandiflora (Nuttall) Greene USA: California [data not captured] J. T. Howell 23172 1947-5-18
GH: 02141419 Agoseris grandiflora (Nuttall) Greene USA: California [data not captured] J. T. Howell 14660 1939-5-14
GH: 02141418 Agoseris grandiflora (Nuttall) Greene USA: California [data not captured] J. T. Howell 23248 1947-6-15
GH: 02141556 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 23125 1947-5-4
GH: 02141555 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 17981 1943-5-9
GH: 02141536 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 11260 1933-5-14
GH: 02141527 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 18131 1943-5-22
GH: 02141526 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 19480 1944-5-14
GH: 02141525 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 23102 1947-4-27
GH: 02141524 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 23125 1947-5-4
GH: 02141569 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] J. T. Howell 27578 1951-6-27
GH: 02141649 Agoseris heterophylla cryptopleura (Nuttall) Greene USA: California [data not captured] J. T. Howell 18012 1943-5-11
GH: 02141666 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 22071 1946-6-16
GH: 02141665 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 21374 1945-8-12
GH: 02141664 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 23181 1947-5-18
GH: 02141663 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 18182 1943-5-30
GH: 02141662 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 14692 1939-5-21
GH: 02141661 Agoseris hirsuta (Hooker) Greene USA: California [data not captured] J. T. Howell 15471 1940-5-20
GH: 02141695 Agoseris monticola Greene USA: California [data not captured] J. T. Howell 15187 1939-8-8
GH: 02141831 Agoseris retrorsa (Bentham) Greene USA: California [data not captured] J. T. Howell 33786 1958-7-23
GH: 00414170 Antennaria pulchella Greene USA: California Near Garnet Lake J. T. Howell 16440 1941-7-24
GH: 00427358 Artemisia arbuscula Nuttall USA: California About 5 miles east of Fredonyer Pass near co... J. T. Howell 52012 1976-7-20
GH: 00427343 Artemisia arbuscula thermopola Beetle USA: California Patterson Mill Road, Warner Mts. J. T. Howell 12098A 1934-6-13
A: 00427409 Artemisia californica Lessing USA: California Steel southern slopes, Greenbrae Hills J. T. Howell 23034 1946-12-22
GH: 00968430 Artemisia cana Pursh USA: California Just west of Monitor Pass J. T. Howell 1964-10-24
GH: 00968791 Artemisia dracunculus Linnaeus USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 1958-7-23
GH: 00988629 Artemisia ludoviciana Nuttall USA: Nevada Cradlebaugh Bridge on Carson River at Hwy. 3... J. T. Howell 1969-9-14
GH: 00988897 Artemisia ludoviciana incompta (Nuttall) D. D. Keck USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 1958-7-30
GH: 00427483 Artemisia spinescens D. C. Eaton USA: California Alabama Hills J. T. Howell 33234 1958-5-23
GH: 00427535 Artemisia tridentata parishii (A. Gray) H. M. Hall & Clements USA: California 3 miles S.W. of Newhall J. T. Howell 27484 1950-11-9
GH: 02142037 Askellia pygmaea (Ledebour) Sennikov USA: California [data not captured] J. T. Howell 17854 1942-8-8
GH: 00386724 Aster alpigenus andersonii (A. Gray) Onno USA: California Summit of Scott Mts. n. of Carrville J. T. Howell 12757 1936-8-24
GH: 00387001 Benitoa occidentalis (H. M. Hall) D. D. Keck USA: California San Benito Canyon, 10 miles nw. of Hernandez J. T. Howell 8067 1931-9-7
GH: 00387007 Benitoa occidentalis (H. M. Hall) D. D. Keck USA: California Near Hernandez J. T. Howell 11549 1933-8-17
GH: 00414812 Blennosperma nanum robustum J. T. Howell USA: California Point Reyes Peninsula above McClure Beach J. T. Howell 23153 1947-5-14
GH: 00414568 Blepharizonia laxa Greene USA: California 16 miles east of Jamesburg, Santa Lucia Mts.... J. T. Howell 11572 1933-8-18
GH: 00414562 Blepharizonia plumosa (Kellogg) Greene USA: California 1.5 miles west of Tesla J. T. Howell 10839 1932-10-16
GH: 01923589 Brickellia grandiflora (Hooker) Nuttall USA: California Near Prattville J. T. Howell 2117 1926-7-26
GH: 01923709 Brickellia greenei A. Gray USA: California Trinity River canyon near Eagle Creek J. T. Howell 12832 1936-8-26
GH: 01923707 Brickellia greenei A. Gray USA: California Near Government Flat J. T. Howell 19201 1943-8-8
GH: 00386578 Brickellia oblongifolia linifolia B. L. Robinson USA: California Suprise Canyon, Panamint Mts. J. T. Howell 3913 1928-6-14
GH: 01923852 Brickellia oblongifolia linifolia B. L. Robinson USA: Arizona Betatakin J. T. Howell 24544 1948-6-22
GH: 02172000 Calendula arvensis (Vaillant) Linnaeus USA: California [data not captured] J. T. Howell 21591 1946-3-31
GH: 00414377 Calycadenia oppositifolia Greene ex Greene USA: California Serpentine, Nelson Bar J. T. Howell 37623 1962-6-16
GH: 00414371 Calycadenia truncata microcephala H. M. Hall ex D. D. Keck USA: California 5 miles west of Lakeport on road to Hopland J. T. Howell 18009 1943-5-10
GH: 00414372 Calycadenia truncata microcephala H. M. Hall ex D. D. Keck USA: California Sawmill Flat, Bartlett Mountains J. T. Howell 21034 1945-6-19
GH: 00414364 Calycadenia villosa de Candolle USA: California Santa Lucia Mts. J. T. Howell 5632 1930-10-24
GH: 02172286 Carduus pycnocephalus Linnaeus USA: California [data not captured] J. T. Howell 21754 1946-5-4
GH: 02172198 Carduus tenuiflorus Curtis USA: California [data not captured] J. T. Howell 14783 1939-6-18
GH: 02172336 Centaurea depressa M. Bieberstein USA: Nevada [data not captured] J. T. Howell 51286 1975-6-18
GH: 00414548 Centromadia pungens (Hooker & Arnott) Greene USA: California Isabella J. T. Howell 37389 1962-5-23
GH: 00414549 Centromadia pungens (Hooker & Arnott) Greene USA: California Isabella J. T. Howell 38336 1962-7-9
GH: 00004702 Chaenactis suffrutescens incana J. T. Howell USA: California Trinity River near Trinity Center J. T. Howell 12861 1936-8-27
GH: 00417234 Chrysothamnus nauseosus ceruminosus (Durand & Hilgard) Hall & Clements USA: California 4.5 miles west of Wofford J. T. Howell 44177 1967-11-6
GH: 00417394 Chrysothamnus paniculatus (A. Gray) H. M. Hall USA: California San Felipe Wash J. T. Howell 3257 1927-11-26
GH: 00417383 Chrysothamnus parryi Greene USA: California Kings Canyon between Zumwalt Meadow and Bubb... J. T. Howell 16138 1940-8-10
GH: 00417392 Chrysothamnus parryi monocephalus (A. Nelson & P. B. Kennedy) Hall & Clements USA: California Mono Pass J. T. Howell 20618 1944-8-16
GH: 02172741 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] J. T. Howell 28822 1952-7-10
GH: 02172738 Cirsium acanthodontum S. F. Blake USA: California [data not captured] J. T. Howell 28840 1952-7-12
GH: 02172737 Cirsium acanthodontum S. F. Blake USA: California [data not captured] J. T. Howell 28836 1952-7-11
GH: 02172744 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] J. T. Howell 28830 1952-7-10
GH: 02172743 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] J. T. Howell 28826 1952-7-10
GH: 02172742 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] J. T. Howell 28828 1952-7-10
GH: 02172855 Cirsium amblylepis Petrak USA: California [data not captured] J. T. Howell 16314A 1941-6-21
GH: 02172880 Cirsium amplifolium (Greene) Petrak USA: California San Francisco: [data not captured] J. T. Howell 11424 1933-7-9
GH: 02172882 Cirsium andersonii (A. Gray) Petrak USA: California [data not captured] J. T. Howell 33755 1958-7-22
GH: 02172881 Cirsium andersonii (A. Gray) Petrak USA: California [data not captured] J. T. Howell 33755 1958-7-22
GH: 02172899 Cirsium andersonii (A. Gray) Petrak USA: California [data not captured] J. T. Howell 28272 1951-8-21
GH: 00427939 Cirsium andrewsii (A. Gray) Jepson USA: California Elk Valley, east of Tennessee Cove J. T. Howell 14818 1939-7-2
GH: 00427940 Cirsium andrewsii (A. Gray) Jepson USA: California Marsh near summit of road from Inverness to ... J. T. Howell 11478 1933-7-30
GH: 00427941 Cirsium andrewsii (A. Gray) Jepson USA: California Point Reyes Lighthouse J. T. Howell 14719 1939-6-4
GH: 00427942 Cirsium andrewsii (A. Gray) Jepson USA: California Elk Valley, east of Tennessee Cove J. T. Howell 14818 1939-7-2
GH: 00427944 Cirsium andrewsii (A. Gray) Jepson USA: California Marsh east of Rodeo Lagoon J. T. Howell 22129 1946-6-30
GH: 00427945 Cirsium andrewsii (A. Gray) Jepson USA: California Serpentine area near Bootjack, Mt. Tamalpais... J. T. Howell 12657 1936-6-7
GH: 00427946 Cirsium andrewsii (A. Gray) Jepson USA: California San Francisco: Fort Point J. T. Howell 33627 1958-6-3
GH: 02172977 Cirsium arvense (Linnaeus) Scopoli USA: California San Francisco: [data not captured] J. T. Howell 31890 1956-9-29
GH: 02020349 Cirsium brevifolium Nuttall USA: Oregon [data not captured] J. T. Howell 28609 1952-7-3
GH: 02020348 Cirsium brevifolium Nuttall USA: Oregon [data not captured] J. T. Howell 28621 1952-7-4
GH: 02020343 Cirsium brevifolium Nuttall USA: Idaho [data not captured] J. T. Howell 28508 1952-6-30
GH: 02020365 Cirsium brevifolium Nuttall USA: Washington [data not captured] J. T. Howell 28522 1952-7-1
GH: 02020364 Cirsium brevifolium Nuttall USA: Washington [data not captured] J. T. Howell 28506 1952-6-30
GH: 02020363 Cirsium brevifolium Nuttall USA: Washington [data not captured] J. T. Howell 28468 1952-6-26
GH: 02020362 Cirsium brevifolium Nuttall USA: Washington [data not captured] J. T. Howell 28492 1952-6-27
GH: 02020383 Cirsium breweri (A. Gray) Jepson USA: California [data not captured] J. T. Howell 13716 1937-7-31
GH: 02020382 Cirsium breweri (A. Gray) Jepson USA: California [data not captured] J. T. Howell 13594 1937-7-27
GH: 02020378 Cirsium breweri (A. Gray) Jepson USA: California [data not captured] J. T. Howell 8018 1931-8-26
GH: 02020393 Cirsium breweri (A. Gray) Jepson USA: California [data not captured] J. T. Howell 12792 1936-8-25
GH: 02020404 Cirsium breweri wrangelii Petrak USA: California [data not captured] J. T. Howell 23286 1947-6-18
GH: 02020410 Cirsium californicum A. Gray USA: California [data not captured] J. T. Howell 30593 1955-7-8
GH: 02020409 Cirsium californicum A. Gray USA: California [data not captured] J. T. Howell 28976 1953-5-22
GH: 02020432 Cirsium californicum A. Gray USA: California [data not captured] J. T. Howell 17051 1942-7-24
GH: 02020452 Cirsium callilepis (Greene) Jepson USA: California [data not captured] J. T. Howell 13070 1937-7-4
GH: 02020451 Cirsium callilepis (Greene) Jepson USA: California [data not captured] J. T. Howell 13070 1937-7-4
GH: 02020455 Cirsium callilepis pseudocarlinoides (Petrak) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28381 1952-6-16
GH: 02020461 Cirsium campylon H. Sharsmith USA: California [data not captured] J. T. Howell 32369 1957-5-19
GH: 02020464 Cirsium candidissimum Dammer USA: California [data not captured] J. T. Howell 12562 1934-7-11
GH: 02020478 Cirsium candidissimum Dammer USA: Nevada [data not captured] J. T. Howell 14254 1938-8-5
GH: 02020477 Cirsium candidissimum Dammer USA: Nevada [data not captured] J. T. Howell 8012 1931-8-26
GH: 02020511 Cirsium canovirens (Rydberg) Petrak USA: Oregon [data not captured] J. T. Howell 28651 1952-7-5
GH: 02020510 Cirsium canovirens (Rydberg) Petrak USA: Oregon [data not captured] J. T. Howell 28650 1952-7-5
GH: 02020559 Cirsium ciliolatum (L. F. Henderson) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28777 1952-7-8
GH: 02020558 Cirsium ciliolatum (L. F. Henderson) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28779 1952-7-8
GH: 02020572 Cirsium congdonii R. J. Moore & Frankton USA: California [data not captured] J. T. Howell 14355 1938-8-7
GH: 02020571 Cirsium congdonii R. J. Moore & Frankton USA: California [data not captured] J. T. Howell 19911 1944-8-4
GH: 00427973 Cirsium crassicaule (Greene) Jepson USA: California 2 mi. nw. of Lathrop bridge on San Joaquin R... J. T. Howell 11447 1933-7-20
GH: 02020576 Cirsium cymosum (Greene) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28759 1952-7-7
GH: 02020575 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 28358 1952-6-15
GH: 02020574 Cirsium cymosum (Greene) J. T. Howell USA: Oregon [data not captured] J. T. Howell 1952-7-6
GH: 02020573 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 28336 1952-6-14
GH: 02020578 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 28361 1952-6-15
GH: 02020586 Cirsium cymosum (Greene) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28747 1952-7-7
GH: 02020585 Cirsium cymosum (Greene) J. T. Howell USA: Oregon [data not captured] J. T. Howell 28745 1952-7-6
GH: 02020583 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 21132 1945-6-21
GH: 02020582 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 15467 1940-5-19
GH: 02020580 Cirsium cymosum (Greene) J. T. Howell USA: California [data not captured] J. T. Howell 13821 1938-5-28
GH: 02020684 Cirsium douglasii canescens (Petrak) J. T. Howell USA: California [data not captured] J. T. Howell 28329 1952-6-14
GH: 02020720 Cirsium drummondii acaulescens (A. Gray) J. F. Macbride USA: California [data not captured] J. T. Howell 20614 1944-8-16
GH: 02020716 Cirsium drummondii acaulescens (A. Gray) J. F. Macbride USA: California [data not captured] J. T. Howell 16693 1941-8-2
GH: 02020728 Cirsium drummondii acaulescens (A. Gray) J. F. Macbride USA: California [data not captured] J. T. Howell 11833 1934-6-9
GH: 02020722 Cirsium drummondii acaulescens (A. Gray) J. F. Macbride USA: California [data not captured] J. T. Howell 12435 1934-7-6
GH: 02020787 Cirsium edule Nuttall USA: California [data not captured] J. T. Howell 5296 1930-6-15
GH: 02020784 Cirsium edule Nuttall USA: California [data not captured] J. T. Howell 5400 1930-7-27
GH: 02020807 Cirsium edule Nuttall USA: Washington [data not captured] J. T. Howell 7382 1931-7-16
GH: 02020873 Cirsium flodmanii (Rydberg) Arthur USA: Montana [data not captured] J. T. Howell 7912 1931-8-22
GH: 02020894 Cirsium foliosum (Hooker) de Candolle USA: California [data not captured] J. T. Howell 30825 1955-7-19
GH: 02020891 Cirsium foliosum (Hooker) de Candolle USA: California Riverside: [data not captured] J. T. Howell 28865 1952-10-24
GH: 02020906 Cirsium foliosum (Hooker) de Candolle USA: Oregon [data not captured] J. T. Howell 28610 1952-7-3
GH: 02020905 Cirsium foliosum (Hooker) de Candolle USA: Oregon [data not captured] J. T. Howell 28547 1952-7-1
GH: 02020904 Cirsium foliosum (Hooker) de Candolle USA: Oregon [data not captured] J. T. Howell 28755 1952-7-7
GH: 00427968 Cirsium fontinale (Greene) Jepson USA: California Crystal Springs Lake J. T. Howell 10852 1932-10-19
GH: 00427971 Cirsium fontinale (Greene) Jepson USA: California Crystal Springs Lake J. T. Howell 14743 1939-6-16
GH: 02020918 Cirsium hallii (A. Gray) M. E. Jones USA: Oregon [data not captured] J. T. Howell 28396 1952-6-21
GH: 02020915 Cirsium hallii (A. Gray) M. E. Jones USA: Oregon [data not captured] J. T. Howell 28403 1952-6-21
GH: 02020914 Cirsium hallii (A. Gray) M. E. Jones USA: Oregon [data not captured] J. T. Howell 28412 1952-6-22
GH: 00427962 Cirsium hydrophilum (Greene) Jepson USA: California Suisun Marshes J. T. Howell 4590 1938-8-28
GH: 02021141 Cirsium inamoenum (Greene) D. J. Keil USA: California [data not captured] J. T. Howell 11908 1934-6-10
GH: 02021140 Cirsium inamoenum (Greene) D. J. Keil USA: California [data not captured] J. T. Howell 13607 1937-7-28
GH: 02021139 Cirsium inamoenum (Greene) D. J. Keil USA: California [data not captured] J. T. Howell 13143 1937-7-19
GH: 02021137 Cirsium inamoenum (Greene) D. J. Keil USA: California [data not captured] J. T. Howell 12058 1934-6-13
GH: 02021136 Cirsium inamoenum (Greene) D. J. Keil USA: California [data not captured] J. T. Howell 11834 1934-6-9
GH: 02021217 Cirsium mohavense (Greene) Petrak USA: California [data not captured] J. T. Howell 4043 1928-6-20
GH: 02021221 Cirsium mohavense (Greene) Petrak USA: California [data not captured] J. T. Howell 28880 1952-10-26
GH: 02021466 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 14765 1939-6-16
GH: 02021457 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 17311 1942-7-27
GH: 02021456 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 5025 1930-5-13
GH: 02021476 Cirsium occidentale (Nuttall) Jepson USA: California San Francisco: [data not captured] J. T. Howell 11432 1933-7-9
GH: 02021475 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 5251 1930-6-8
GH: 02021474 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 6259 1931-4-11
GH: 02021494 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 30893 1955-8-6
GH: 02021505 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 23330 1947-7-9
GH: 02021647 Cirsium proteanum J. T. Howell USA: California [data not captured] J. T. Howell 28851 1952-7-13
GH: 02021646 Cirsium proteanum J. T. Howell USA: California [data not captured] J. T. Howell 28933 1953-4-26
GH: 02021651 Cirsium proteanum J. T. Howell USA: California [data not captured] J. T. Howell 30486 1955-6-15
GH: 02021650 Cirsium proteanum J. T. Howell USA: California [data not captured] J. T. Howell 33564 1958-5-28
GH: 02021693 Cirsium quercetorum (A. Gray) Jepson USA: California San Francisco: [data not captured] J. T. Howell 11439 1933-7-9
GH: 02021700 Cirsium quercetorum (A. Gray) Jepson USA: California [data not captured] J. T. Howell 29100 1953-6-15
GH: 02021699 Cirsium quercetorum (A. Gray) Jepson USA: California [data not captured] J. T. Howell 11302 1933-5-21
GH: 02021703 Cirsium quercetorum (A. Gray) Jepson USA: California [data not captured] J. T. Howell 14819 1939-7-2
GH: 02021702 Cirsium quercetorum (A. Gray) Jepson USA: California [data not captured] J. T. Howell 14718 1939-6-4
GH: 02021701 Cirsium quercetorum (A. Gray) Jepson USA: California [data not captured] J. T. Howell 14739 1939-6-16
GH: 02021717 Cirsium remotifolium (Hooker) de Candolle USA: California [data not captured] J. T. Howell 13577A 1937-7-27
GH: 02021716 Cirsium remotifolium (Hooker) de Candolle USA: California [data not captured] J. T. Howell 15033 1939-8-4
GH: 02021725 Cirsium remotifolium (Hooker) de Candolle USA: Oregon [data not captured] J. T. Howell 6879 1931-6-21
GH: 02021732 Cirsium remotifolium pseudocarlinoides Petrak USA: California [data not captured] J. T. Howell 15520 1940-5-26
GH: 02021730 Cirsium remotifolium pseudocarlinoides Petrak USA: California [data not captured] J. T. Howell 13942 1938-7-3
GH: 02021772 Cirsium scariosum Nuttall USA: California [data not captured] J. T. Howell 52025 1976-7-20
GH: 02021771 Cirsium scariosum Nuttall USA: California [data not captured] J. T. Howell 52025 1976-7-20
GH: 02021010 Cirsium sp. USA: California [data not captured] J. T. Howell 14746 1939-6-16
GH: 02021013 Cirsium sp. USA: California [data not captured] J. T. Howell 28852 1952-7-13
GH: 02021014 Cirsium sp. USA: California [data not captured] J. T. Howell 14796 1939-6-25
GH: 02022118 Cirsium sp. USA: California [data not captured] J. T. Howell 14721 1939-6-4
GH: 02022121 Cirsium sp. USA: Oregon [data not captured] J. T. Howell 28392 1952-6-21
GH: 02022123 Cirsium sp. USA: Oregon [data not captured] J. T. Howell 28659 1952-7-5
GH: 02022122 Cirsium sp. USA: Oregon [data not captured] J. T. Howell 28643 1952-7-4
GH: 02022124 Cirsium sp. USA: Oregon [data not captured] J. T. Howell 28374 1952-6-16
GH: 02022125 Cirsium sp. USA: Oregon [data not captured] J. T. Howell 28771 1952-7-8
GH: 02014020 Cirsium undulatum (Nuttall) Sprengel USA: Oregon [data not captured] J. T. Howell 1880-7
GH: 02021911 Cirsium undulatum (Nuttall) Sprengel USA: Washington [data not captured] J. T. Howell 28473 1952-6-26
GH: 02021910 Cirsium undulatum (Nuttall) Sprengel USA: Washington [data not captured] J. T. Howell 28510 1952-6-30
GH: 02021932 Cirsium utahense Petrak USA: Oregon [data not captured] J. T. Howell 28540 1952-7-1
GH: 02021931 Cirsium utahense Petrak USA: Oregon [data not captured] J. T. Howell 28546 1952-7-1
GH: 02021930 Cirsium utahense Petrak USA: Oregon [data not captured] J. T. Howell 28542 1952-7-1
GH: 02021929 Cirsium utahense Petrak USA: Oregon [data not captured] J. T. Howell 28626 1952-7-4
GH: 02021943 Cirsium venustum Porta USA: California [data not captured] J. T. Howell 14747 1939-6-16
GH: 02021949 Cirsium venustum Porta USA: California [data not captured] J. T. Howell 5343 1930-7-13
GH: 02021948 Cirsium venustum Porta USA: California [data not captured] J. T. Howell 11556 1933-8-17
GH: 02021947 Cirsium venustum Porta USA: California [data not captured] J. T. Howell 15519 1940-5-26
GH: 02022033 Cirsium vulgare (Savi) Tenore USA: California [data not captured] J. T. Howell 28866 1952-10-24
GH: 02022103 Cirsium walkerianum Petrak USA: California [data not captured] J. T. Howell 13939 1938-6-30
GH: 02022100 Cirsium walkerianum Petrak USA: California [data not captured] J. T. Howell 13940 1938-6-30
GH: 02022099 Cirsium walkerianum Petrak USA: California [data not captured] J. T. Howell 13953 1938-7-3
GH: 02216770 Conyza bilbaoana J. Rémy USA: California [data not captured] J. T. Howell 1956-9-30
GH: 02216777 Conyza bonariensis (Linnaeus) Cronquist USA: California [data not captured] J. T. Howell 52307 1976-10-29
GH: 02216774 Conyza bonariensis (Linnaeus) Cronquist USA: California [data not captured] J. T. Howell 51634 1976-5-16
GH: 00414352 Coreopsis gigantea (Kellogg) H. M. Hall USA: California San Nicolas Island J. T. Howell 8220 1932-3-13
GH: 00387175 Corethrogyne californica de Candolle USA: California Near Ledum Swamp, Pt. Reyes Peninsula J. T. Howell 1943-7-4
GH: 00387085 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California 4.5 miles s. of Aptos J. T. Howell 11611 1933-8-19
GH: 00387100 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California Mt. Hermon, Santa Cruz Mts. J. T. Howell 11613 1933-8-19
GH: 00387171 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California Merced River Canyon 1.5 miles above Bricebur... J. T. Howell 31990 1956-12-4
GH: 00387175 Corethrogyne filaginifolia californica (de Candolle) Saroyan USA: California Near Ledum Swamp, Pt. Reyes Peninsula J. T. Howell 1943-7-4
GH: 00387193 Corethrogyne filaginifolia peirsonii M. L. Canby USA: California Kernville J. T. Howell 47438 1970-9-25
GH: 00387194 Corethrogyne filaginifolia pinetorum I. M. Johnston USA: California near stream below San Antonio Ski Hut, San G... J. T. Howell 47438 1970-9-25
GH: 02142527 Crepis capillaris (Linnaeus) Wallroth USA: California [data not captured] J. T. Howell 32821 1957-7-22
GH: 00002556 Delilia repens (Hooker f.) Kuntze Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
GH: 02203542 Dieteria canescens (Pursh) Nuttall USA: California [data not captured] J. T. Howell 34974 1959-9-24
GH: 02203541 Dieteria canescens (Pursh) Nuttall USA: Nevada [data not captured] J. T. Howell 37067 1961-9-26
GH: 02203809 Dieteria canescens shastensis (A. Gray) D. R. Morgan & R. L. Hartman USA: California [data not captured] J. T. Howell 12434 1934-7-6
GH: 00387212 Eastwoodia elegans Brandegee USA: California east end of Corral Hollow J. T. Howell 1953-4-26
GH: 00002556 Elvira atripliciformis J. T. Howell Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
GH: 00002556 Elvira repens (Hooker f.) B. L. Robinson Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
A: 00414488 Encelia frutescens (A. Gray) A. Gray USA: California Near Palm Wash, w. Colorado Desert J. T. Howell 3511 1928-3-24
GH: 00387273 Ericameria bloomeri (A. Gray) J. F. Macbride USA: California On Chester - Westwood road 1/2 mile west of ... J. T. Howell 2150 1926-7-29
GH: 00387369 Ericameria discoidea (Nuttall) G. L. Nesom USA: California Between Reflection Lake and Harrison Pass J. T. Howell 15799 1940-8-1
A: 00417221 Ericameria linearifolia (de Candolle) Urbatsch & Wussow USA: California Sawmill Flat to Ruppert Ridge, Bartlett Moun... J. T. Howell 21175 1945-6-21
GH: 00417222 Ericameria linearifolia (de Candolle) Urbatsch & Wussow USA: California 5.3 miles SW. of Bitterwater J. T. Howell 32132 1957-4-30
A: 02205487 Ericameria nauseosa (Pallas ex Pursh) G. L. Nesom & G. I. Baird USA: Montana [data not captured] J. T. Howell 7921 1931-8-22
GH: 00417234 Ericameria nauseosa ceruminosa (Durand & Hilgard) G. L. Nesom & G. I. Baird USA: California 4.5 miles west of Wofford J. T. Howell 44177 1967-11-6
GH: 00417394 Ericameria paniculata (A. Gray) Rydberg USA: California San Felipe Wash J. T. Howell 3257 1927-11-26
GH: 00417383 Ericameria parryi vulcanica (Greene) G. L. Nesom & G. I. Baird USA: California Kings Canyon between Zumwalt Meadow and Bubb... J. T. Howell 16138 1940-8-10
GH: 00417392 Ericameria parryi monocephala (Nelson & Kennedy) G. L. Nesom & G. I. Baird USA: California Mono Pass J. T. Howell 20618 1944-8-16
GH: 00417498 Ericameria suffruticosa (Nuttall) G. L. Nesom USA: California Summit of trail between Garnet and Shadow la... J. T. Howell 16901 1941-8-10
GH: 02207447 Erigeron algidus Jepson USA: California [data not captured] J. T. Howell 1942-7-27
GH: 02207836 Erigeron bloomeri A. Gray USA: California [data not captured] J. T. Howell 12513 1934-7-8
GH: 02207835 Erigeron bloomeri A. Gray USA: California [data not captured] J. T. Howell 11913 1934-6-11
GH: 02206088 Erigeron chrysopsidis austiniae (Greene) Cronquist USA: California [data not captured] J. T. Howell 11936 1934-6-11
GH: 02348042 Erigeron eatonii plantagineus (Greene) Cronquist USA: California [data not captured] J. T. Howell 12179 1934-6-14
GH: 02348169 Erigeron elmeri Greene USA: California [data not captured] J. T. Howell 1941-7-23
GH: 02348244 Erigeron filifolius Nuttall USA: California [data not captured] J. T. Howell 12014 1934-6-12
GH: 02348243 Erigeron filifolius Nuttall USA: California [data not captured] J. T. Howell 12099 1934-6-13
GH: 02353698 Erigeron linearis (Hooker) Piper USA: California [data not captured] J. T. Howell 12252 1934-6-30
GH: 02353697 Erigeron linearis (Hooker) Piper USA: California [data not captured] J. T. Howell 12261 1934-6-30
GH: 02353695 Erigeron linearis (Hooker) Piper USA: California [data not captured] J. T. Howell 12007 1934-6-12
GH: 02353875 Erigeron lonchophyllus Hooker USA: California [data not captured] J. T. Howell 1940-7-30
GH: 02352360 Erigeron petrophilus Greene USA: California [data not captured] J. T. Howell 1942-7-12
GH: 02352356 Erigeron petrophilus Greene USA: California [data not captured] J. T. Howell 1503 1933-8-13
GH: 02352354 Erigeron petrophilus Greene USA: California [data not captured] J. T. Howell 5663 1930-10-24
GH: 02351207 Erigeron pygmaeus Greene USA: California [data not captured] J. T. Howell 1950-7-22
GH: 00417544 Erigeron radicatus Hooker USA: California Above timberline, Mt. Kaweah J. T. Howell 17487 1942-7-31
GH: 00417546 Erigeron radicatus Hooker USA: California Mono Pass, Inyo-Fresno Cos. J. T. Howell 16383 1941-7-22
GH: 02351326 Erigeron reductus angustatus (A. Gray) G. L. Nesom USA: California [data not captured] J. T. Howell 11625 1933-8-27
GH: 02351325 Erigeron reductus angustatus (A. Gray) G. L. Nesom USA: California [data not captured] J. T. Howell 1946-7-7
GH: 00414831 Eriophyllum confertiflorum (de Candolle) A. Gray USA: California Throckmorton Ridge, Mt. Tamalpais J. T. Howell 26628 1950-6-11
GH: 00427087 Eriophyllum jepsonii Greene USA: California 10 miles east of Paicines J. T. Howell 12985 1937-5-20
GH: 00427088 Eriophyllum jepsonii Greene USA: California lower part of Arroyo Mocho J. T. Howell 18110 1943-5-16
GH: 00427067 Eriophyllum lanatum arachnoideum (Fischer, C. A. Meyer & Avé-Lallemant) Jepson USA: California Between Big Lagoon and Miur Woods J. T. Howell 1939-7-2
GH: 00037683 Grindelia arenicola Steyermark USA: California Sand dunes 4-5 miles north of Fort Bragg J. T. Howell 5473 1930-9-14
GH: 00037684 Grindelia arenicola pachyphylla Steyermark USA: California Open coastal plain 6 miles south of Point Ar... J. T. Howell 8106 1931-9-27
GH: 00417566 Grindelia camporum Greene USA: California Ignacia J. T. Howell 11721 1933-11-19
GH: 00417567 Grindelia camporum Greene USA: California Merced J. T. Howell 5329 1930-6-29
GH: 00417572 Grindelia camporum Greene USA: California Berkeley: Botanic Garden, Univ. of Californi... J. T. Howell 4550 1930-11-19
GH: 00417575 Grindelia camporum Greene USA: California Lake Isabella (east side of norm arm), ca. 5... J. T. Howell 47471 1970-9-25
GH: 00037686 Grindelia camporum parviflora Steyermark USA: California Liberty School on Marsh Creek Road J. T. Howell 5496 1930-9-28
GH: 00417584 Grindelia camporum bracteosa (J. T. Howell) M. A. Lane USA: California San Clemente: [No Additional Data] J. T. Howell 6623 1931-6-1
GH: 00037685 Grindelia camporum foliacea Steyermark USA: California 1 mile from Vacaville on road to Elmira J. T. Howell 5201 1930-5-30
GH: 00417598 Grindelia hirsutula Hooker & Arnott USA: California Sausilito Hills J. T. Howell 11454 1933-7-23
GH: 00417599 Grindelia hirsutula Hooker & Arnott USA: California Sausilito Hills J. T. Howell 11455 1933-7-23
GH: 00417600 Grindelia hirsutula Hooker & Arnott USA: California Chileno Valley J. T. Howell 22038 1946-6-13
GH: 00417601 Grindelia hirsutula Hooker & Arnott USA: California South end of Tiburon Peninsula J. T. Howell 14697 1939-5-21
GH: 00417605 Grindelia hirsutula Hooker & Arnott USA: California 4 miles from Santa Rosa on road to Sonoma J. T. Howell 4304 1929-6-9
GH: 00417606 Grindelia hirsutula Hooker & Arnott USA: California 8 miles west of Petaluma J. T. Howell 5223 1930-6-8
GH: 00417612 Grindelia hirsutula Hooker & Arnott USA: California Summit of Cuesta Pass J. T. Howell 11415 1933-7-2
GH: 00417613 Grindelia hirsutula Hooker & Arnott USA: California Monterey Peninsula near Carmel Bay and the D... J. T. Howell 11602 1933-8-19
GH: 00417614 Grindelia hirsutula Hooker & Arnott USA: California White's Hill, between Fairfax and Woodacre J. T. Howell 11463 1933-7-30
GH: 00417664 Grindelia hirsutula Hooker & Arnott USA: California Summit of Cuesta Pass J. T. Howell 11415 1933-7-2
GH: 00417673 Grindelia hirsutula Hooker & Arnott USA: California San Francisco: Visitacion Valley J. T. Howell 11436 1933-7-9
GH: 00417674 Grindelia hirsutula Hooker & Arnott USA: California East side of Napa Valley near Stag's Leap J. T. Howell 11394 1933-6-4
GH: 00417677 Grindelia hirsutula Hooker & Arnott USA: California 1 mile west of San Joaquin River bridge near... J. T. Howell 5550 1930-10-11
GH: 00037696 Grindelia hirsutula subintegra Steyermark USA: California 2 miles east of Ojai J. T. Howell 11414 1933-7-1
GH: 00037685 Grindelia hirsutula hirsutula USA: California 1 mile from Vacaville on road to Elmira J. T. Howell 5201 1930-5-30
GH: 00037693 Grindelia hirsutula hirsutula USA: California 8 miles west of Petaluma J. T. Howell 5221 1930-6-8
GH: 00037696 Grindelia hirsutula hirsutula USA: California 2 miles east of Ojai J. T. Howell 11414 1933-7-1
GH: 00417632 Grindelia hirsutula davyi (Jepson) M. A. Lane USA: California Mt. St. Helena J. T. Howell 5346 1930-7-13
GH: 00417645 Grindelia hirsutula davyi (Jepson) M. A. Lane USA: California Hamilton Field J. T. Howell 23033 1946-11-3
GH: 00417654 Grindelia hirsutula maritima (Greene) M. A. Lane USA: California 17 mile Drive, Pacific Grove J. T. Howell 5430 1930-8-3
GH: 00417655 Grindelia hirsutula maritima (Greene) M. A. Lane USA: California Inverness Ridge J. T. Howell 21272 1945-7-4
GH: 00417657 Grindelia hirsutula maritima (Greene) M. A. Lane USA: California San Francisco: Summit of Twin Peaks J. T. Howell 11661 1933-9-15
GH: 00417706 Grindelia hirsutula maritima (Greene) M. A. Lane USA: California San Francisco: Presidio J. T. Howell 11489 1933-8-11
GH: 00037693 Grindelia hirsutula glabrata Steyermark USA: California 8 miles west of Petaluma J. T. Howell 5221 1930-6-8
GH: 00037698 Grindelia humilis pubescens Steyermark USA: California Upper edge of tidal flat, Cuttings Wharf on ... J. T. Howell 10805 1932-10-8
GH: 00417688 Grindelia nana Nuttall USA: California Near Altaville J. T. Howell 30062 1954-9-6
GH: 00417734 Grindelia paludosa Greene USA: California Suisun Marshes at Pierce Station J. T. Howell 11727 1933-11-19
GH: 00417738 Grindelia paludosa Greene USA: California Suisun: [No Additional Data] J. T. Howell 11671 1933-9-17
GH: 00417739 Grindelia paludosa Greene USA: California 8 miles s. of Watsonville J. T. Howell 11609 1933-8-19
GH: 00417575 Grindelia procera Greene USA: California Lake Isabella (east side of norm arm), ca. 5... J. T. Howell 47471 1970-9-25
GH: 00417722 Grindelia sp. USA: California Bolinas Bay J. T. Howell 11486 1933-7-30
GH: 00417723 Grindelia sp. USA: California Head of Tomales Bay J. T. Howell 11483 1933-7-30
GH: 00417734 Grindelia sp. USA: California Suisun Marshes at Pierce Station J. T. Howell 11727 1933-11-19
GH: 00417738 Grindelia sp. USA: California Suisun: [No Additional Data] J. T. Howell 11671 1933-9-17
GH: 00417739 Grindelia sp. USA: California 8 miles s. of Watsonville J. T. Howell 11609 1933-8-19
GH: 00417754 Grindelia stricta de Candolle USA: California Humboldt Bay at Arcata J. T. Howell 13720 1937-7-31
GH: 00037698 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Upper edge of tidal flat, Cuttings Wharf on ... J. T. Howell 10805 1932-10-8
GH: 00417715 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California at head of Tomales Bay J. T. Howell 11472 1933-7-30
GH: 00417717 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Head of Tomales Bay J. T. Howell 11472 1933-7-30
A: 00417721 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Tomales Bay at Inverness J. T. Howell 11482 1933-7-30
GH: 00417722 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Bolinas Bay J. T. Howell 11486 1933-7-30
GH: 00417724 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Inverness J. T. Howell 11482 1933-7-30
GH: 00417698 Grindelia stricta platyphylla (Greene) M. A. Lane USA: California mouth of Waddell Creek J. T. Howell 10862 1932-10-19
GH: 00387273 Haplopappus bloomeri A. Gray USA: California On Chester - Westwood road 1/2 mile west of ... J. T. Howell 2150 1926-7-29
A: 00417221 Haplopappus linearifolius de Candolle USA: California Sawmill Flat to Ruppert Ridge, Bartlett Moun... J. T. Howell 21175 1945-6-21
GH: 00417222 Haplopappus linearifolius de Candolle USA: California 5.3 miles SW. of Bitterwater J. T. Howell 32132 1957-4-30
GH: 00414090 Haplopappus lucidus (D. D. Keck) D. D. Keck USA: California Portola J. T. Howell 36957 1961-9-25
GH: 00414091 Haplopappus lucidus (D. D. Keck) D. D. Keck USA: California Sierra Valley near Beckwourth J. T. Howell 35007 1959-9-25
GH: 00417498 Haplopappus suffruticosus (Nuttall) A. Gray USA: California Summit of trail between Garnet and Shadow la... J. T. Howell 16901 1941-8-10
GH: 00008710 Haplopappus whitneyi discoidea J. T. Howell USA: California Shackleford Creek Trail south of Sky High Va... J. T. Howell 15236 1939-8-9
GH: 01831094 Hedypnois cretica (Linnaeus) Dumont Courset USA: California [data not captured] J. T. Howell 16955 1942-5-3
GH: 00414536 Helianthella castanea Greene USA: California Nortonville J. T. Howell 6475 1931-5-12
GH: 00414541 Hemizonia congesta tracyi Babcock & H. M. Hall USA: California 5.5 miles east of Burnt Ranch J. T. Howell 13706 1937-7-31
GH: 00414562 Hemizonia plumosa (Kellogg) A. Gray USA: California 1.5 miles west of Tesla J. T. Howell 10839 1932-10-16
GH: 00414565 Hemizonia plumosa (Kellogg) A. Gray USA: California 5 miles so. of San Benito Co. J. T. Howell 8048 1931-9-6
GH: 00414566 Hemizonia plumosa (Kellogg) A. Gray USA: California Hills 10 miles north-east of King City J. T. Howell 8056 1931-9-7
GH: 00414568 Hemizonia plumosa (Kellogg) A. Gray USA: California 16 miles east of Jamesburg, Santa Lucia Mts.... J. T. Howell 11572 1933-8-18
GH: 00414548 Hemizonia pungens (Hooker & Arnott) Torrey & A. Gray USA: California Isabella J. T. Howell 37389 1962-5-23
GH: 00414549 Hemizonia pungens (Hooker & Arnott) Torrey & A. Gray USA: California Isabella J. T. Howell 38336 1962-7-9
GH: 00414557 Hemizonia pungens (Hooker & Arnott) Torrey & A. Gray USA: California 9 miles north of Vallejo J. T. Howell 4542 1929-10-26
GH: 02204035 Heterotheca grandiflora Nuttall USA: California [data not captured] J. T. Howell 3112 1927-9-24
GH: 02204028 Heterotheca grandiflora Nuttall USA: California [data not captured] J. T. Howell 1970-9-25
GH: 02204054 Heterotheca oregona (Nuttall) Shinners USA: California [data not captured] J. T. Howell 8034 1931-9-6
GH: 02204078 Heterotheca oregona rudis (Greene) J. C. Semple USA: California [data not captured] J. T. Howell 21498 1945-9-16
GH: 02204076 Heterotheca oregona rudis (Greene) J. C. Semple USA: California [data not captured] J. T. Howell 36893 1961-9-23
GH: 02204164 Heterotheca sessiliflora fastigiata (Bentham) Semple USA: California [data not captured] J. T. Howell 38872 1962-9-25
GH: 02204149 Heterotheca sessiliflora echioides (Bentham) Semple USA: California [data not captured] J. T. Howell 11614 1933-8-19
GH: 02204147 Heterotheca sessiliflora echioides (Bentham) Semple USA: California [data not captured] J. T. Howell 21304 1945-7-15
GH: 02204130 Heterotheca sessiliflora echioides (Bentham) Semple USA: California [data not captured] J. T. Howell 11511 1933-8-13
GH: 02204124 Heterotheca sessiliflora echioides (Bentham) Semple USA: California [data not captured] J. T. Howell 3109 1927-9-24
GH: 00417920 Heterotheca shevockii (Semple) Semple USA: California Kern River Canyon J. T. Howell 38175 1962-7-7
GH: 00417920 Heterotheca villosa shevockii Semple USA: California Kern River Canyon J. T. Howell 38175 1962-7-7
GH: 01831184 Hieracium albiflorum Hooker USA: California [data not captured] J. T. Howell 38391 1962-7-9
GH: 01831785 Hieracium gracile detonsum (A. Gray) A. Gray USA: California [data not captured] J. T. Howell 13392 1937-7-24
GH: 01831800 Hieracium greenei A. Gray USA: California [data not captured] J. T. Howell 19299 1943-8-12
GH: 00417991 Isocoma arguta Greene USA: California Montezuma Hills J. T. Howell 11685 1933-9-17
GH: 00417953 Isocoma menziesii vernonioides (Nuttall) G. L. Nesom USA: California Santa Ana Canyon J. T. Howell 3105 1927-9-24
GH: 00414657 Iva axillaris Pursh USA: California San Lorenzo Creek , 4.5 miles from King City... J. T. Howell 32116 1957-4-30
GH: 01834202 Lactuca biennis (Moench) Fernald USA: Oregon [data not captured] J. T. Howell 1880-8
GH: 01834733 Lactuca saligna Linnaeus USA: California [data not captured] J. T. Howell 19324 1943-9-5
GH: 01834779 Lactuca sativa Linnaeus USA: California [data not captured] J. T. Howell 19310 1943-8-22
GH: 01834775 Lactuca sativa Linnaeus USA: California [data not captured] J. T. Howell 17004 1942-6-28
GH: 00427313 Lasthenia macrantha (A. Gray) Green USA: California Pt. Reyes J. T. Howell 4739 1930-4-20
GH: 00427316 Lasthenia macrantha (A. Gray) Green USA: California Fort Bragg J. T. Howell 4238 1929-4-26
GH: 00427305 Lasthenia macrantha bakeri (J. T. Howell) Ornduff USA: California 6 miles south of Point Arena J. T. Howell 8099 1931-9-27
GH: 00414634 Layia graveolens Greene USA: California Oil Canyon J. T. Howell 5842 1931-3-18
GH: 00414634 Layia heterotricha (de Candolle) Hooker & Arnott USA: California Oil Canyon J. T. Howell 5842 1931-3-18
GH: 00414642 Layia heterotricha (de Candolle) Hooker & Arnott USA: California 11 miles from Hernandez on road to San Benit... J. T. Howell 6022 1931-3-29
GH: 00414645 Layia heterotricha (de Candolle) Hooker & Arnott USA: California 11 miles from Hernandez on road to San Benit... J. T. Howell 11156 1933-4-23
GH: 00427300 Lembertia congdonii (A. Gray) Greene USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5811 1931-3-18
GH: 01835224 Leontodon saxatilis Lamarck USA: California [data not captured] J. T. Howell 21334 1945-7-29
GH: 01835221 Leontodon saxatilis Lamarck USA: California [data not captured] J. T. Howell 21333 1945-7-29
GH: 00414064 Lessingia arachnoidea Greene USA: California Hills near Crystal Springs Lake J. T. Howell 2220A 1926-10-9
GH: 00414067 Lessingia arachnoidea Greene USA: California between Lake San Andreas and Crystal Springs... J. T. Howell 2220 1926-10-9
GH: 00414054 Lessingia germanorum Chamisso USA: California San Francisco: near Lake Merced J. T. Howell 2233 1926-11-7
GH: 00414055 Lessingia germanorum Chamisso USA: California San Francisco: Presidio J. T. Howell 8126 1931-9-29
GH: 00414061 Lessingia germanorum Chamisso USA: California 5 miles north of the Pinnacles J. T. Howell 12958 1937-5-20
GH: 00414063 Lessingia germanorum Chamisso USA: California South of Kernville below hot springs J. T. Howell 38930 1962-9-25
GH: 00009656 Lessingia germanorum tenuipes J. T. Howell USA: California 4 miles south of Templeton J. T. Howell 3005 1927-8-17
GH: 00009657 Lessingia germanorum vallicola J. T. Howell USA: California 3 miles west of Manteca. J. T. Howell 3065 1927-8-27
GH: 00414063 Lessingia germanorum lemmonii (A. Gray) J. T. Howell USA: California South of Kernville below hot springs J. T. Howell 38930 1962-9-25
GH: 00414049 Lessingia hololeuca Greene USA: California Baltimore Park J. T. Howell 2192 1926-9-9
GH: 00414050 Lessingia hololeuca Greene USA: California 2 miles n. of Calistoga, Napa Valley J. T. Howell 2210 1926-10-3
GH: 00403553 Lessingia hololeuca Greene USA: California Chileno Valley J. T. Howell 24178 1947-9-6
GH: 00414045 Lessingia micradenia Greene USA: California Rocky Ridge Fire Trail, Mt. Tamalpais J. T. Howell 23010 1946-9-15
GH: 00414045 Lessingia ramulosa micradenia (Greene) J. T. Howell USA: California Rocky Ridge Fire Trail, Mt. Tamalpais J. T. Howell 23010 1946-9-15
GH: 00414037 Lessingia tenuis (A. Gray) Coville USA: California San Antonio Valley J. T. Howell 2061 1926-7-11
GH: 00414041 Lessingia tenuis (A. Gray) Coville USA: California near Cuddy's Ranch, Mt. Pinos region J. T. Howell 3859 1928-5-27
GH: 00387369 Macronema discoidea Nuttall USA: California Between Reflection Lake and Harrison Pass J. T. Howell 15799 1940-8-1
GH: 00414755 Madia hallii D. D. Keck USA: California 2.9 miles north of Middletown J. T. Howell 18050 1943-5-11
GH: 00443007 Malacothrix saxatilis arachnoidea (E. A. McGregor) E. W. Williams USA: California Carmel Valley, 10 miles east of Carmel J. T. Howell 11590 1933-8-18
GH: 00443005 Malacothrix saxatilis arachnoidea (E. A. McGregor) E. W. Williams USA: California [data not captured] J. T. Howell 11590 1933-8-18
GH: 00414150 Micropus amphibolus A. Gray USA: California Angel Island, South side J. T. Howell 21871 1946-5-16
GH: 00414151 Micropus amphibolus A. Gray USA: California 3 miles southeast of Sonoma J. T. Howell 41033 1965-3-25
GH: 01835900 Microseris douglasii (de Candolle) Schultz Bipontinus USA: California [data not captured] J. T. Howell 16979 1942-6-21
GH: 01835924 Microseris douglasii tenella (A. Gray) K. L. Chambers USA: California [data not captured] J. T. Howell 11008 1933-4-22
GH: 01835957 Microseris heterocarpa (Nuttall) K. L. Chambers USA: California [data not captured] J. T. Howell 23078 1947-4-27
GH: 01835977 Microseris laciniata (Hooker) Schultz Bipontinus USA: California [data not captured] J. T. Howell 13081 1937-7-4
GH: 01835970 Microseris laciniata (Hooker) Schultz Bipontinus USA: California [data not captured] J. T. Howell 15598 1940-6-30
GH: 02593159 Microseris nutans (Hooker) Schultz Bipontinus USA: California Fandango Pass; Warner Mts. J. T. Howell 12051 1934-6-13
GH: 02593158 Microseris nutans (Hooker) Schultz Bipontinus USA: California Fandango Pass; Warner Mts. J. T. Howell 12057 1934-6-13
GH: 00443040 Microseris paludosa (Greene) J. T. Howell USA: California San Francisco: Presidio J. T. Howell 13000 1937-5-23
GH: 00443041 Microseris paludosa (Greene) J. T. Howell USA: California 7 miles north of Petaluma on Stony Point roa... J. T. Howell 13046 1937-6-6
GH: 00427300 Monolopia congdonii (A. Gray) B. G. Baldwin USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5811 1931-3-18
GH: 00589319 Pectis glabra calvescens J. T. Howell Ecuador: Galapagos Islands, Conway Bay, Indefatigable... J. T. Howell 9870 1932-6-8
GH: 00589320 Pectis hookeri stellulata J. T. Howell Ecuador: Galapagos Islands, Jarvis Island J. T. Howell 9740 1932-6-6
GH: 00589319 Pectis subsquarrosa (Hooker f.) Schultz Bipontinus Ecuador: Galapagos Islands, Conway Bay, Indefatigable... J. T. Howell 9870 1932-6-8
GH: 00589320 Pectis subsquarrosa (Hooker f.) Schultz Bipontinus Ecuador: Galapagos Islands, Jarvis Island J. T. Howell 9740 1932-6-6
GH: 00414098 Pentachaeta bellidiflora Greene USA: California Greenbrae Hills J. T. Howell 21933 1946-5-25
GH: 00427275 Perityle megalocephala oligophylla A. M. Powell USA: California Surprise Canyon, Panamint Mts. J. T. Howell 3906 1928-6-14
GH: 00414090 Pyrrocoma lucida (D. D. Keck) Kartesz & Gandhi USA: California Portola J. T. Howell 36957 1961-9-25
GH: 00414091 Pyrrocoma lucida (D. D. Keck) Kartesz & Gandhi USA: California Sierra Valley near Beckwourth J. T. Howell 35007 1959-9-25
GH: 02022272 Rhaponticum calcitrapa (Linnaeus) Scopoli USA: California [data not captured] J. T. Howell 1946-10-13
GH: 00011800 Scalesia crockerii J. T. Howell Ecuador: Galapagos Province North Seymour Island J. T. Howell 9992 1932-6-11
GH: 00427769 Senecio flaccidus douglasii (de Candolle) B. L. Turner & T. M. Barkley USA: California 2 miles s. of Aguanga J. T. Howell 3272 1927-11-27
GH: 00427542 Sphaeromeria cana (D. C. Eaton) A. Heller USA: California Mono Pass J. T. Howell 20650 1944-8-16
GH: 00427549 Sphaeromeria cana (D. C. Eaton) A. Heller USA: California Agnew Pass J. T. Howell 16882 1941-8-8
GH: 00443087 Stephanomeria pauciflora (Torrey) A. Nelson USA: California about 2 miles south of Kernville J. T. Howell 47456 1970-9-25
GH: 00427952 Tetradymia stenolepis Greene USA: California Metamorphic rocks northeast of Lake Isabella J. T. Howell 38666 1962-7-12
GH: 00414085 Tonestus peirsonii (D. D. Keck) G. L. Nesom & D. R. Morgan USA: California Between Ruby Lake and Mosquito Flat, Rock Cr... J. T. Howell 22807 1946-7-27
GH: 00414079 Tracyina rostrata S. F. Blake USA: California on Arthur E. Cooley ranch, at confluence of ... J. T. Howell 42599 1967-6-17
Aulacomniaceae FH: 00520009 Aulacomnium androgynum (Hedwig) Schwägrichen USA: Oregon [data not captured] J. T. Howell 1931-7-10
FH: 00996763 Aulacomnium androgynum (Hedwig) Schwägrichen USA: California granite rocks, pine woods, N. side of Junipe... J. T. Howell H165 1955-5-17
Aytoniaceae FH: 00495183 Asterella ludwigii (Schwägrichen) Underwood ex Frye & L. Clark USA: California [data not captured] J. T. Howell 1936-5-10
FH: 00497681 Fimbraria bolanderi Austin USA: California [data not captured] J. T. Howell 1934-3-28
FH: 00497697 Fimbraria californica Hampe & Austin USA: California [data not captured] J. T. Howell 1933-4
Bartramiaceae FH: 00536213 Anacolia menziesii (Taylor) Paris Mexico: Baja California Norte Ensenada: [data not captured] J. T. Howell 42 1931-11-14
FH: 00536214 Anacolia menziesii (Taylor) Paris Mexico: Baja California Norte Ensenada: [data not captured] J. T. Howell 50 1931-11-14
FH: 00516722 Bartramia ithyphylla Bridel USA: Oregon [data not captured] J. T. Howell 1931-6-26
FH: 00824922 Philonotis fontana (Hedwig) Bridel USA: California [data not captured] J. T. Howell 1932-10-9
FH: 00996002 Philonotis fontana pumila (Turner) Bridel USA: California Sonora Paso Road to Niagra Creek J. T. Howell H127 1954-6-5
FH: 00996003 Philonotis fontana pumila (Turner) Bridel USA: California just west of whiskey town J. T. Howell H147 1954-4-26
Berberidaceae A: 00376808 Mahonia dictyota (Jepson) Fedde USA: California Sawmill Flat to Ruppert Ridge, Bartlett Moun... J. T. Howell 21168 1945-6-21
A: 00376808 Mahonia repens (Lindley) G. Don USA: California Sawmill Flat to Ruppert Ridge, Bartlett Moun... J. T. Howell 21168 1945-6-21
Betulaceae A: 02197042 Alnus rhombifolia Nuttall USA: California Near Trinity Center J. T. Howell 12842 1936-8-27
A: 00401399 Alnus sinuata (Regel) Rydberg USA: California Spirit Lake, Marble Mts. J. T. Howell 14956 1939-8-3
A: 00401399 Alnus viridis sinuata (Regel) Á. Löve & D. Löve USA: California Spirit Lake, Marble Mts. J. T. Howell 14956 1939-8-3
A: 00401427 Betula fontinalis Sargent USA: California Rock Creek Canyon north of Sherwin Grade J. T. Howell 14356 1938-8-7
A: 00401428 Betula fontinalis Sargent USA: California Patterson Mill Road, Warner Mts. J. T. Howell 12095 1934-6-13
A: 00401427 Betula occidentalis Hooker USA: California Rock Creek Canyon north of Sherwin Grade J. T. Howell 14356 1938-8-7
A: 00401428 Betula occidentalis Hooker USA: California Patterson Mill Road, Warner Mts. J. T. Howell 12095 1934-6-13
A: 00401488 Corylus cornuta californica (A. de Candolle) A. E. Murray USA: California South Fork of Salmon River near Big Flat J. T. Howell 13352 1937-7-23
A: 00401488 Corylus cornuta californica (A. de Candolle) Sharp USA: California South Fork of Salmon River near Big Flat J. T. Howell 13352 1937-7-23
Bignoniaceae A: 00384785 Chilopsis linearis (Cavanilles) Sweet USA: California Just above Box S Ranch, Mojave Desert J. T. Howell 2687 1927-7-9
A: 00384786 Chilopsis linearis (Cavanilles) Sweet USA: California North arm of the Coachella Valley J. T. Howell 2880 1927-8-1
A: 00384785 Chilopsis linearis arcuata (Fosberg) Henrickson USA: California Just above Box S Ranch, Mojave Desert J. T. Howell 2687 1927-7-9
A: 00384786 Chilopsis linearis arcuata (Fosberg) Henrickson USA: California North arm of the Coachella Valley J. T. Howell 2880 1927-8-1
Bombacaceae A: 00422597 Fremontodendron californicum (Torrey) Coville USA: California Near head of Hunting Creek, northwest of Kno... J. T. Howell 14653 1939-5-7
Boraginaceae GH: 00424564 Amsinckia douglasiana de Candolle USA: California Stone Canyon J. T. Howell 5970 1931-3-22
GH: 00424569 Amsinckia douglasiana de Candolle USA: California Between Paicines and Pinnacles P.O. J. T. Howell 11059 1933-4-22
GH: 00424570 Amsinckia douglasiana de Candolle USA: California Between Paicines and Pinnacles P.O. J. T. Howell 11069 1933-4-22
GH: 00403902 Amsinckia eastwoodiae J. F. Macbride USA: California Corral Hollow J. T. Howell 10889 1933-3-26
GH: 00424623 Amsinckia furcata Suksdorf USA: California Oil Canyon J. T. Howell 5852 1931-3-18
GH: 00424627 Amsinckia furcata Suksdorf USA: California Oil Canyon J. T. Howell 5853 1931-3-18
GH: 01956330 Amsinckia intermedia Fischer & C. A. Meyer USA: California 1.5 miles s. of Tres Pinos J. T. Howell 11039 1933-4-22
GH: 01956335 Amsinckia intermedia Fischer & C. A. Meyer USA: California Lakeville J. T. Howell 11778 1934-3-25
GH: 01956337 Amsinckia intermedia Fischer & C. A. Meyer USA: California Lakeville J. T. Howell 11777 1934-3-25
GH: 01956338 Amsinckia intermedia Fischer & C. A. Meyer USA: California Lakeville J. T. Howell 11775 1934-3-25
GH: 01956346 Amsinckia intermedia Fischer & C. A. Meyer USA: California Southwestern base of Mt. Hood J. T. Howell 11785 1934-3-26
GH: 01956360 Amsinckia intermedia Fischer & C. A. Meyer USA: California Southwestern base of Mt. Hood J. T. Howell 11786 1934-3-26
GH: 01956362 Amsinckia intermedia Fischer & C. A. Meyer USA: California Southwestern base of Mt. Hood J. T. Howell 11787 1934-3-26
GH: 01956364 Amsinckia intermedia Fischer & C. A. Meyer USA: California Southwestern base of Mt. Hood J. T. Howell 11789 1934-3-26
GH: 01956365 Amsinckia intermedia Fischer & C. A. Meyer USA: California Lakeville J. T. Howell 11776 1934-3-25
GH: 01956370 Amsinckia intermedia Fischer & C. A. Meyer USA: California Southwestern base of Mt. Hood J. T. Howell 11788 1934-3-26
GH: 01956374 Amsinckia intermedia Fischer & C. A. Meyer USA: California Soscol J. T. Howell 11304 1933-5-21
GH: 01956375 Amsinckia intermedia Fischer & C. A. Meyer USA: California St. Mary's College J. T. Howell 11224A 1933-5-14
GH: 01956376 Amsinckia intermedia Fischer & C. A. Meyer USA: California near San Lucas J. T. Howell 32087 1957-4-29
GH: 01956384 Amsinckia intermedia Fischer & C. A. Meyer USA: California Soscol J. T. Howell 11304 1933-5-21
GH: 01956385 Amsinckia intermedia Fischer & C. A. Meyer USA: California About 1 mile SW. of Calistoga J. T. Howell 16171 1941-4-5
GH: 01956386 Amsinckia intermedia Fischer & C. A. Meyer USA: California About 1 mile SW. of Calistoga J. T. Howell 16169 1941-4-5
GH: 01956395 Amsinckia intermedia Fischer & C. A. Meyer USA: California Tesla J. T. Howell 10879 1933-3-26
GH: 01956397 Amsinckia intermedia Fischer & C. A. Meyer USA: California Strawberry Canyon, Berkeley Hills J. T. Howell 11365 1933-5-28
GH: 01956400 Amsinckia intermedia Fischer & C. A. Meyer USA: California Tesla Hills J. T. Howell 12582 1935-4-11
GH: 01956402 Amsinckia intermedia Fischer & C. A. Meyer USA: California Tesla Hills J. T. Howell 12583 1935-4-11
GH: 01956403 Amsinckia intermedia Fischer & C. A. Meyer USA: California Tesla Hills J. T. Howell 12584 1935-4-11
GH: 01956406 Amsinckia intermedia Fischer & C. A. Meyer USA: California Honey Lake Valley, 24 miles s. of Susanville J. T. Howell 11870 1934-6-10
GH: 01956415 Amsinckia intermedia Fischer & C. A. Meyer USA: California Parker Creek, Warner Mts. J. T. Howell 12210 1934-6-16
GH: 01956416 Amsinckia intermedia Fischer & C. A. Meyer USA: California 6 miles s. of Davis Creek J. T. Howell 11995 1934-6-12
GH: 01956417 Amsinckia intermedia Fischer & C. A. Meyer USA: California Parker Creek, Warner Mts. J. T. Howell 12211 1934-6-16
GH: 01956444 Amsinckia intermedia Fischer & C. A. Meyer USA: California Phoenix Lake, north side of Mt. Tamalpais J. T. Howell 11199 1933-4-30
GH: 01956551 Amsinckia intermedia Fischer & C. A. Meyer USA: California 3 miles west of San Andreas J. T. Howell 4699 1930-4-13
GH: 01956627 Amsinckia lycopsoides Lehmann USA: California Big Valley, 4 miles ne. of Bieber J. T. Howell 12219 1934-6-16
GH: 01956739 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California 5 miles n. of Horse Lake on road to Alturas J. T. Howell 11899 1934-6-10
GH: 01956740 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California 5 miles from Adin on road to Alturas J. T. Howell 12218 1934-6-16
GH: 01956741 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California 10 miels s. of New Pine Creek J. T. Howell 12039 1934-6-12
GH: 01956742 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Davis Creek J. T. Howell 12005 1934-6-12
GH: 01956745 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Big Valley, 4 miles ne. of Bieber J. T. Howell 12220 1934-6-15
GH: 01956786 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California Lakeville J. T. Howell 11774 1934-3-25
GH: 01956787 Amsinckia menziesii A. Nelson & J. F. Macbride USA: California About 1 mile SW. of Calistoga J. T. Howell 16170 1941-4-5
GH: 00424644 Amsinckia sp. USA: California Surprise Valley, near Fort Bidwell J. T. Howell 12085 1934-6-13
GH: 00424645 Amsinckia sp. USA: California Parker Creek, Warner Mts. J. T. Howell 12209 1934-6-16
GH: 00424658 Amsinckia sp. USA: California Corral Hollow J. T. Howell 10891 1933-3-26
GH: 00424664 Amsinckia sp. USA: California Corral Hollow J. T. Howell 10890 1933-3-26
GH: 00424762 Amsinckia sp. USA: California San Francisco: Golden Gate Park J. T. Howell 11293 1933-5-16
GH: 00424763 Amsinckia sp. USA: California San Francisco: Visitacion Valley J. T. Howell 11208 1933-5-3
GH: 00424764 Amsinckia sp. USA: California San Francisco: Visitacion Valley J. T. Howell 11207 1933-5-3
GH: 00424765 Amsinckia sp. USA: California San Francisco: Visitacion Valley J. T. Howell 11206 1933-5-3
GH: 00424773 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10910 1933-3-29
GH: 00424774 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10908 1933-3-29
GH: 00424775 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10908A 1933-3-29
GH: 00424776 Amsinckia sp. USA: California Pittsburg J. T. Howell 10916 1933-3-29
GH: 00424777 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10911 1933-3-29
GH: 00424778 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10912 1933-3-29
GH: 00424779 Amsinckia sp. USA: California Nortonville hills J. T. Howell 10913 1933-3-29
GH: 00424780 Amsinckia sp. USA: California St. Mary's College J. T. Howell 11224A 1933-4-15
GH: 00424781 Amsinckia sp. USA: California St. Mary's College J. T. Howell 11224 1933-4-15
GH: 00424782 Amsinckia sp. USA: California St. Mary's College J. T. Howell 11225 1933-4-15
GH: 00424783 Amsinckia sp. USA: California Between Paicines and Pinnacles P.O. J. T. Howell 11068 1933-4-22
GH: 00424784 Amsinckia sp. USA: California Near San Benito J. T. Howell 11074 1933-4-22
GH: 00424786 Amsinckia sp. USA: California 10 miles nw. of Hollister J. T. Howell 11010 1933-4-22
GH: 00424788 Amsinckia sp. USA: California 1/5 miles s. of Tres Pinos J. T. Howell 11040 1933-4-22
GH: 00424789 Amsinckia sp. USA: California 10 miles nw. of Hollister J. T. Howell 11011 1933-4-22
GH: 00424805 Amsinckia sp. USA: California Oil Canyon J. T. Howell 5851 1931-3-18
GH: 00424806 Amsinckia sp. USA: California Oil Canyon J. T. Howell 5847 1931-3-18
GH: 00424807 Amsinckia sp. USA: California Near Coalinga J. T. Howell 5862 1931-3-19
GH: 00424813 Amsinckia sp. USA: California San Francisco: Golden Gate Park J. T. Howell 11296 1933-5-16
GH: 00424814 Amsinckia sp. USA: California San Francisco: Golden Gate Park J. T. Howell 11294 1933-5-16
GH: 00424815 Amsinckia sp. USA: California San Francisco: Golden Gate Park J. T. Howell 11297 1933-5-16
GH: 00424816 Amsinckia sp. USA: California San Francisco: Golden Gate Park J. T. Howell 11295 1933-5-16
GH: 00424835 Amsinckia sp. USA: California 7 miles nw. of Hollister J. T. Howell 11017 1933-4-22
GH: 00424836 Amsinckia sp. USA: California 7 miles nw. of Hollister J. T. Howell 11018 1933-4-22
GH: 00424837 Amsinckia sp. USA: California 7 miles nw. of Hollister J. T. Howell 11020 1933-4-22
GH: 00424838 Amsinckia sp. USA: California Between Paicines and Pinnacles P.O. J. T. Howell 11061 1933-4-22
GH: 00424839 Amsinckia sp. USA: California Stone Canyon J. T. Howell 5973 1931-3-22
GH: 00424840 Amsinckia sp. USA: California Stone Canyon J. T. Howell 5972 1931-3-22
GH: 00424841 Amsinckia sp. USA: California Poncho Rico Canyon J. T. Howell 6003 1931-3-23
GH: 01956911 Amsinckia spectabilis Fischer & C. A. Meyer USA: California Pt. Reyes J. T. Howell 4731 1930-4-20
GH: 01956912 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Presidio J. T. Howell 1109 1933-5-5
GH: 01956913 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Pt. Lobos J. T. Howell 11334 1933-5-24
GH: 01956914 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Pt. Lobos J. T. Howell 11335 1933-5-24
GH: 01956918 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Lake Merced J. T. Howell 11429 1933-7-9
GH: 01956920 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Pt. Lobos J. T. Howell 11333 1933-5-24
GH: 01956921 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: slopes west of Sutro J. T. Howell 11331 1933-5-23
GH: 01956959 Amsinckia spectabilis Fischer & C. A. Meyer USA: California Cypress Point, Monterey Peninsula J. T. Howell 11606 1933-8-19
GH: 01956964 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Francisco: Presidio J. T. Howell 11209 1933-5-5
GH: 01957020 Amsinckia tessellata A. Gray USA: California Near San Benito J. T. Howell 11073 1933-4-22
GH: 01957021 Amsinckia tessellata A. Gray USA: California 4 miles from San Benito on road to King City J. T. Howell 11152 1933-4-23
GH: 01957022 Amsinckia tessellata A. Gray USA: California Near San Benito J. T. Howell 11079 1933-4-22
GH: 01957027 Amsinckia tessellata A. Gray USA: California Parker Creek, Warner Mts. J. T. Howell 12212 1934-6-16
GH: 01957028 Amsinckia tessellata A. Gray USA: California Parker Creek, Warner Mts. J. T. Howell 12213 1934-6-16
GH: 01957032 Amsinckia tessellata A. Gray USA: California 10 miles s. of New Pine Creek J. T. Howell 12038 1934-6-12
GH: 01957033 Amsinckia tessellata A. Gray USA: California 11 miles ne. of Canby J. T. Howell 12216 1934-6-16
GH: 01957035 Amsinckia tessellata A. Gray USA: California Sandy flood plain of Salinas River, King Cit... J. T. Howell 32073 1957-4-29
GH: 01957070 Amsinckia tessellata A. Gray USA: California Oil Canyon J. T. Howell 5844 1931-3-18
GH: 01957071 Amsinckia tessellata A. Gray USA: California Los Gatos Canyon J. T. Howell 5802 1931-3-17
GH: 01957075 Amsinckia tessellata A. Gray USA: California Nortonville hills J. T. Howell 10914 1933-3-29
GH: 01957076 Amsinckia tessellata A. Gray USA: California Desert canyon near Tesla J. T. Howell 12600 1935-4-11
GH: 01957077 Amsinckia tessellata A. Gray USA: California Tesla Hills J. T. Howell 12581 1935-4-11
GH: 01957078 Amsinckia tessellata A. Gray USA: California 3 miles south of Blackwell's Corner, N. W. K... J. T. Howell 5895 1931-3-20
GH: 01957086 Amsinckia tessellata A. Gray USA: California Parker Creek, Warner Mts. J. T. Howell 12214 1934-6-16
GH: 01957087 Amsinckia tessellata A. Gray USA: California Honey Lake Valley, 24 miles s. of Susanville J. T. Howell 11869 1934-6-10
GH: 01957088 Amsinckia tessellata A. Gray USA: California Madeline Plains near Termo J. T. Howell 11907 1934-6-10
GH: 01957091 Amsinckia tessellata A. Gray USA: California Spalding's, on Eagle Lake J. T. Howell 12488 1934-7-8
GH: 01957092 Amsinckia tessellata A. Gray USA: California Near Plumas Junction J. T. Howell 11842 1934-6-10
GH: 01957095 Amsinckia tessellata A. Gray USA: California 3 miles n. of Omira J. T. Howell 11855 1934-6-10
GH: 01957096 Amsinckia tessellata A. Gray USA: California 3 miles n. of Omira J. T. Howell 11856 1934-6-10
GH: 01957235 Amsinckia vernicosa Hooker & Arnott USA: California Stone Canyon J. T. Howell 5971 1931-3-22
GH: 01957241 Amsinckia vernicosa Hooker & Arnott USA: California Stone Canyon J. T. Howell 5967 1931-3-22
GH: 01957242 Amsinckia vernicosa Hooker & Arnott USA: California Desert canyon near Tesla J. T. Howell 12599 1935-4-11
GH: 01957255 Amsinckia vernicosa Hooker & Arnott USA: California 5 miles from Maricopa on Maricopa Grade J. T. Howell 5909 1931-3-21
A: 01957333 Anchusa procera Besser ex Link USA: California Near Hayfork J. T. Howell 30714 1955-7-17
GH: 00094695 Coldenia galapagoa J. T. Howell Ecuador: Galapagos Province Conway Bay, Indefatigable Island [Santa Cruz... J. T. Howell 9862 1932-6-8
GH: 00094698 Coldenia nesiotica J. T. Howell Ecuador: Galapagos Province Bartholomew Island J. T. Howell 10059 1932-6-14
GH: 00233550 Cordia anderssoni Gürke Ecuador: Galapagos Province Academ Bay, Indefatigable Island. (Santa Cru... J. T. Howell 9075 1932-5-4
GH: 00244020 Cordia revoluta Hooker f. Ecuador: Galapagos Province 5 miles northeast of Webb cove, Albemarle Is... J. T. Howell 9465 1932-5-23
GH: 00424680 Cryptantha circumscissa (Hooker & Arnott) I. M. Johnston USA: California summit of Army Pass J. T. Howell 26200 1949-8-9
GH: 00424680 Cryptantha circumscissa rosulata J. T. Howell USA: California summit of Army Pass J. T. Howell 26200 1949-8-9
GH: 00424681 Cryptantha circumscissa rosulata J. T. Howell USA: California Upper Cottonwood Lakes J. T. Howell 26227 1949-8-12
GH: 00424932 Cryptantha corollata (I. M. Johnston) I. M. Johnston USA: California East of Priest Valley in western Fresno Coun... J. T. Howell 32095 1957-4-29
GH: 00424861 Cryptantha glomeriflora Greene USA: California Monache Creek, South Fork J. T. Howell 27301 1950-7-24
GH: 00424865 Cryptantha glomeriflora Greene USA: California Near Ruby Lake, Rock Creek Lake Basin J. T. Howell 22804 1946-7-27
GH: 00424868 Cryptantha glomeriflora Greene USA: California Ridge N.W. of San Joaquin Mt. J. T. Howell 16623 1941-7-31
GH: 00424932 Cryptantha rattanii Greene USA: California East of Priest Valley in western Fresno Coun... J. T. Howell 32095 1957-4-29
GH: 00424934 Cryptantha rattanii Greene USA: California Arroyo del Puerto J. T. Howell 38965 1963-4-25
GH: 00424935 Cryptantha rattanii Greene USA: California Hastings Reservation, Santa Lucia Mts. J. T. Howell 30237 1955-5-21
GH: 00420032 Hackelia amethystina J. T. Howell USA: California Plaskett Meadows J. T. Howell 19736 1944-7-13
GH: 00420059 Hackelia cusickii (Piper) Brand USA: California Parker Creek, Warner Mts., Modoc Co. J. T. Howell 11960 1934-6-11
GH: 01994652 Lappula echinata Gilibert Canada: Alberta 4 miles s. of Calgary J. T. Howell 7845 1931-8-20
GH: 00420016 Plagiobothrys diffusus (Greene) I. M. Johnstone USA: California San Francisco: above Mountain Lake, Presidio... J. T. Howell 11223 1933-5-7
GH: 00403950 Plagiobothrys mollis (A. Gray) I. M. Johnston USA: California Dorris Reservoir, 2 miles e. of Alturas J. T. Howell 12197 1934-6-15
GH: 00403977 Plagiobothrys reticulatus rossianorum I. M. Johnston USA: California Bodega Road, 4 miles east of Valley Ford J. T. Howell 5225 1930-6-8
GH: 00403983 Plagiobothrys reticulatus rossianorum I. M. Johnston USA: California Sebastopol J. T. Howell 13016 1937-6-6
GH: 00420152 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Patterson Flats J. T. Howell 12539 1934-7-10
GH: 00420157 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Bakeoven Meadows, South Fork of Kern River J. T. Howell 26822 1950-7-14
GH: 00420168 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Harvey Valley J. T. Howell 12479 1934-7-7
GH: 00420169 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Long's Well J. T. Howell 12549 1934-7-10
GH: 00420180 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Plum Valley, Warner Mts. J. T. Howell 12034 1934-6-12
GH: 00420181 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Parker Creek, Warner Mts. J. T. Howell 11912 1934-6-11
GH: 00420192 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Near Lost Lake, Warner Mts. J. T. Howell 12126 1934-6-14
GH: 00420197 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California South Fork of Salmon River near Big Flat J. T. Howell 13331A 1937-7-22
GH: 00420198 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Plum Valley, Warner Mts. J. T. Howell 12034A 1934-6-12
GH: 00420207 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Big Flat J. T. Howell 13217 1937-7-21
GH: 00420213 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: California Patterson Flats J. T. Howell 12540 1934-7-10
GH: 00403945 Plagiobothrys torreyi diffusus I. M. Johnston USA: California Bakeoven Meadows, South Fork of Kern River J. T. Howell 26795 1950-7-13
Brachytheciaceae FH: 00515794 Chamberlainia collina (Schleicher ex Müller Halle) H. Robinson USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00538339 Chamberlainia velutina (Hedwig) H. Robinson USA: Oregon [data not captured] J. T. Howell 1931-6-23
FH: 00797312 Eurhynchium oreganum (Sullivant) A. Jaeger USA: Oregon [data not captured] J. T. Howell 1931-7-10
FH: 00837708 Homalothecium aureum (Spruce) H. Robinson Mexico: [data not captured] J. T. Howell 54 1931-11-14
FH: 00885564 Scleropodium touretii (Bridel) L. F. Koch Mexico: [data not captured] J. T. Howell 53 1931-11-14
Brassicaceae GH: 00378687 Arabis blepharophylla Hooker & Arnott USA: California San Francisco: Bayview Hills J. T. Howell 32300 1957-5-17
GH: 00974309 Arabis furcata S. Watson USA: Oregon [data not captured] J. T. Howell 1879-6
GH: 00378755 Arabis lemmonii S. Watson USA: California Between Reflection Lake and Harrison Pass J. T. Howell 16037 1940-8-8
GH: 00378757 Arabis lemmonii S. Watson USA: California Mono Pass, Fresno-Inyo Co. J. T. Howell 16385 1941-7-22
GH: 00378782 Arabis lemmonii S. Watson USA: California Mt. Dana J. T. Howell 14541 1938-8-11
GH: 00378869 Arabis repanda S. Watson USA: California Truckee River Canyon near Floriston J. T. Howell 11836 1934-6-9
GH: 00378850 Arabis repanda greenei Jepson USA: California Timberline, Olancha Peak J. T. Howell 27199 1950-7-22
GH: 00974500 Athysanus pusillus (Hooker) Greene USA: California east side of Mt. Diablo 7 miles from Clayton... J. T. Howell 5754 1931-3-10
GH: 00378733 Barbarea orthoceras Ledebour USA: California Goodhill & Diablo roads, Kentfield J. T. Howell 51325 1975-6-29
GH: 01181526 Boechera acutina (Greene) Windham & Al-Shehbaz USA: California Spirit Lake, Marble Mts. J. T. Howell 14945 1939-8-2
GH: 01181551 Boechera breweri (S. Watson) Al-Shehbaz USA: California The Pinnacles J. T. Howell 12955 1937-5-19
GH: 01181562 Boechera breweri (S. Watson) Al-Shehbaz USA: California South Fork of Salmon River near Big Flat J. T. Howell 13265 1937-7-22
GH: 01181564 Boechera breweri (S. Watson) Al-Shehbaz USA: California Between Big Flat and Caribou Gulch, Salmon R... J. T. Howell 13568 1937-7-26
GH: 01181576 Boechera breweri (S. Watson) Al-Shehbaz USA: California Jamison Creek J. T. Howell 27665 1951-6-28
GH: 01181799 Boechera davidsonii (Greene) N. H. Holmgren USA: California West of Reflection Lake J. T. Howell 15825 1940-8-2
GH: 01181800 Boechera davidsonii (Greene) N. H. Holmgren USA: California Hamilton Lakes J. T. Howell 17653 1942-8-3
GH: 00932111 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: California South Fork of Salmon River near Big Flat J. T. Howell 13205 1937-7-21
GH: 00932112 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: California Silver Creek, about 1 mile northeast of Lake... J. T. Howell 52482 1977-8-2
GH: 00932113 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: California Caribou basin, Salmon-Trinity Alps J. T. Howell 13418 1937-7-24
GH: 00932114 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: California Spirit Lake. Marble Mts. J. T. Howell 14952 1939-8-3
GH: 00932116 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: California Caribou Gulch J. T. Howell 13551 1937-7-26
GH: 00932280 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Oregon [data not captured] J. T. Howell 6857 1931-6-21
GH: 00932291 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Oregon [data not captured] J. T. Howell 7139 1931-7-2
GH: 00932502 Boechera holboelii (Hornemann) A. Löve & D. Löve USA: Washington [data not captured] J. T. Howell 7454 1931-7-22
GH: 00932688 Boechera holboelii pinetorum (Tidestrom) Dorn USA: California Near Devil's Postpile J. T. Howell 14464 1938-8-10
GH: 00932853 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: California Summit between Caribou Basin and Stuart Fork... J. T. Howell 13509 1937-7-25
GH: 00932855 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: California Caribou Basin, Salmon-Trinity Alps J. T. Howell 13444 1937-7-25
GH: 00932862 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: Oregon [data not captured] J. T. Howell 7053 1931-6-28
GH: 00932863 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: Oregon [data not captured] J. T. Howell 7129 1931-7-2
GH: 00932864 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: Oregon [data not captured] J. T. Howell 7096 1931-6-30
GH: 00932887 Boechera inyoensis (Rollins) Al-Shehbaz USA: California Ridge N. W. of San Joaquin Mt. J. T. Howell 16610 1941-7-31
GH: 00932888 Boechera inyoensis (Rollins) Al-Shehbaz USA: California Pass north of Hessian Meadows J. T. Howell 27116 1950-7-19
GH: 00378755 Boechera lemmonii (S. Watson) W. A. Weber USA: California Between Reflection Lake and Harrison Pass J. T. Howell 16037 1940-8-8
GH: 00378757 Boechera lemmonii (S. Watson) W. A. Weber USA: California Mono Pass, Fresno-Inyo Co. J. T. Howell 16385 1941-7-22
GH: 00378782 Boechera lemmonii (S. Watson) W. A. Weber USA: California Mt. Dana J. T. Howell 14541 1938-8-11
GH: 00946171 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada Near Mt. Rose J. T. Howell 14214 1938-8-4
GH: 00946172 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada Near Mt. Rose J. T. Howell 4215 1938-8-4
GH: 00946188 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada Near Mt. Rose J. T. Howell 1938-8-4
GH: 00946450 Boechera lyallii (S. Watson) Dorn USA: Washington [data not captured] J. T. Howell 7508 1931-7-23
GH: 00378834 Boechera paupercula (Greene) Windham & Al-Shehbaz USA: California White Chief region J. T. Howell 28072 1951-7-21
GH: 00946748 Boechera pendulocarpa (A. Nelson) Windham & Al-Shehbaz USA: California Mono Pass J. T. Howell 20649 1944-8-16
GH: 00946798 Boechera perennans (S. Watson) W. A. Weber USA: California Surprise Canyon, Panamint Mts. J. T. Howell 3903 1928-6-14
GH: 00946905 Boechera platysperma (A. Gray) Al-Shehbaz USA: California Agnew Pass J. T. Howell 16581 1941-7-31
GH: 00946909 Boechera platysperma (A. Gray) Al-Shehbaz USA: California Near Devil's Postpile J. T. Howell 14469 1938-8-10
GH: 00946953 Boechera platysperma (A. Gray) Al-Shehbaz USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 33878 1958-7-24
GH: 00946968 Boechera platysperma (A. Gray) Al-Shehbaz USA: Nevada [data not captured] J. T. Howell 14060 1938-8-3
GH: 00960142 Boechera pulchra (M. E. Jones ex S. Watson) W. A. Weber USA: California Carroll Creek J. T. Howell 33367 1958-5-25
GH: 00960144 Boechera pulchra (M. E. Jones ex S. Watson) W. A. Weber USA: California Bishop Creek J. T. Howell 33541 1958-5-28
GH: 00960145 Boechera pulchra (M. E. Jones ex S. Watson) W. A. Weber USA: California East side of Walker Pass J. T. Howell 37223 1962-5-21
GH: 00960168 Boechera pulchra gracilis (M. E. Jones) Dorn USA: California Kern River Canyon above Roads End J. T. Howell 37265 1962-5-22
GH: 00960169 Boechera pulchra gracilis (M. E. Jones) Dorn USA: California Whitney Portal road J. T. Howell 33280 1958-5-24
GH: 00960284 Boechera rectissima (Greene) Al-Shehbaz USA: California 1.2 mile north of Cherry Gap J. T. Howell 35307 1960-6-5
GH: 00378850 Boechera repanda (S. Watson) Al-Shehbaz USA: California Timberline, Olancha Peak J. T. Howell 27199 1950-7-22
GH: 00378869 Boechera repanda (S. Watson) Al-Shehbaz USA: California Truckee River Canyon near Floriston J. T. Howell 11836 1934-6-9
GH: 00960772 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California South Fork of Salmon River near Big Flat J. T. Howell 13203 1937-7-21
GH: 00960780 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Spirit Lake, Marble Mts. J. T. Howell 14913 1939-8
GH: 00960781 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Agnew Pass J. T. Howell 16582 1941-7-31
GH: 00960782 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Near Devil's Postpile J. T. Howell 14462 1938-8-10
GH: 00960792 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Duncan Horse Camp J. T. Howell 12267 1934-6-30
GH: 00960801 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Castle Peak J. T. Howell 18544 1943-7-18
GH: 00960803 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Between Reflection Lake and Harrison Pass J. T. Howell 15785 1940-8-1
GH: 00960810 Boechera retrofracta (Graham) A. Löve & D. Löve USA: California Mammouth Lakes Basin J. T. Howell 14411 1938-8-8
GH: 00944184 Boechera sp. USA: California [data not captured] J. T. Howell 34113 1958-7-30
GH: 00944280 Boechera sp. USA: California [data not captured] J. T. Howell 14414 1938-8-8
GH: 00944331 Boechera sp. USA: California [data not captured] J. T. Howell 13569 1937-7-26
GH: 00944410 Boechera sp. USA: California [data not captured] J. T. Howell 11994 1934-6-12
GH: 00944441 Boechera sp. USA: California On Mineral King road near Silver City J. T. Howell 50259 1973-10-17
GH: 00944442 Boechera sp. USA: Nevada [data not captured] J. T. Howell 53266 1978-7-28
GH: 00944457 Boechera sp. USA: California Minaret Summit J. T. Howell 14488 1938-8-10
GH: 00944458 Boechera sp. USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 33904 1958-7-25
GH: 00948332 Boechera sparsiflora (Nuttall) Dorn USA: California "Lewisia Rock," 3.5 miles sw. of Belden, Fea... J. T. Howell 42736 1967-6-23
GH: 00948334 Boechera sparsiflora (Nuttall) Dorn USA: California Near Lost Lake, Warner Mts. J. T. Howell 12138 1934-6-14
GH: 00948385 Boechera sparsiflora (Nuttall) Dorn USA: California Copper Creek Trail, Kings Canyon J. T. Howell 35338 1960-6-6
GH: 00948538 Boechera sparsiflora subvillosa (S. Watson) Dorn USA: California Portola J. T. Howell 37696 1962-6-17
GH: 00948543 Boechera sparsiflora subvillosa (S. Watson) Dorn USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 33835 1958-7-23
GH: 00948544 Boechera sparsiflora subvillosa (S. Watson) Dorn USA: California Caribou Basin, Salmon-Trinity Alps J. T. Howell 13378 1937-7-24
GH: 00944039 Boechera stricta (Graham) Al-Shehbaz USA: Washington [data not captured] J. T. Howell 7471 1931-7-22
GH: 01783904 Boechera suffrutescens (S. Watson) Dorn USA: California [data not captured] J. T. Howell 13204 1937-7-21
GH: 01783905 Boechera suffrutescens (S. Watson) Dorn USA: California [data not captured] J. T. Howell 13632 1937-7-29
GH: 01783911 Boechera suffrutescens (S. Watson) Dorn USA: California [data not captured] J. T. Howell 27713 1951-6-28
GH: 01783912 Boechera suffrutescens (S. Watson) Dorn USA: California [data not captured] J. T. Howell 13379 1937-7-24
GH: 01783939 Boechera suffrutescens (S. Watson) Dorn USA: Oregon [data not captured] J. T. Howell 7097 1931-6-30
GH: 00672771 Brassica nigra (Linnaeus) W. D. J. Koch USA: California Cambria J. T. Howell 40771 1964-6-29
GH: 00672768 Brassica nigra (Linnaeus) W. D. J. Koch USA: California Strybing Arboretum, Golden Gate Park J. T. Howell 32885 1957-8-6
GH: 00944675 Brassica oleracea Linnaeus USA: California near Tamalpais High School, Mill Valley J. T. Howell 1950-5-4
GH: 01097752 Cakile maritima Scopoli USA: California Muir Beach J. T. Howell 19333 1943-10-3
GH: 01098779 Cardamine breweri S. Watson USA: Nevada [data not captured] J. T. Howell 14084 1938-8-3
GH: 00378921 Cardamine californica (Nuttall) Greene USA: California east side of Mt. Diablo 7 miles from Clayton... J. T. Howell 5757 1931-3-10
GH: 00378950 Cardamine californica cuneata (Greene) Rollins USA: California San Benito River Canyon, 8 miles from Hernan... J. T. Howell 6033 1931-3-29
GH: 00378951 Cardamine californica cuneata (Greene) Rollins USA: California The Pinnacles J. T. Howell 11110 1933-4-23
GH: 00983113 Cardamine cordifolia A. Gray USA: California Spirit Lake, Marble Mts. J. T. Howell 14993 1939-8-3
GH: 00983134 Cardamine cordifolia A. Gray USA: Oregon [data not captured] J. T. Howell 1878
GH: 00983819 Cardamine nuttallii covilleana (O. E. Schulz) Rollins USA: Washington [data not captured] J. T. Howell
GH: 00983888 Cardamine oligosperma Nuttall USA: California Dillons Beach J. T. Howell 21733 1946-5-4
GH: 00379021 Cardamine pachystigma (S. Watson) Rollins USA: California Anthony Peak, east side J. T. Howell 19760 1944-7-14
GH: 00379023 Cardamine pachystigma (S. Watson) Rollins USA: California White Chief Trail J. T. Howell 28051 1951-7-21
GH: 00379024 Cardamine pachystigma (S. Watson) Rollins USA: California Eagle Lake Trail J. T. Howell 27799 1951-7-16
GH: 01540335 Caulanthus anceps Payson USA: California Poncho Rico Canyon J. T. Howell 6001 1931-3-23
GH: 01087205 Caulanthus cooperi (S. Watson) Payson USA: California Carroll Creek J. T. Howell 33373 1958-5-25
GH: 00379081 Caulanthus coulteri lemmonii (S. Watson) Munz USA: California Hospital Canyon J. T. Howell 13764 1938-4-10
GH: 01087447 Caulanthus hallii Payson USA: California 10 miles north of Warner's Hot Springs J. T. Howell 4811 1930-5-10
GH: 00379081 Caulanthus lemmonii S. Watson USA: California Hospital Canyon J. T. Howell 13764 1938-4-10
GH: 01087530 Caulanthus major nevadensis Rollins USA: Nevada [data not captured] J. T. Howell 40944 1964-8-10
GH: 01087539 Caulanthus pilosus S. Watson USA: California Whitney Portal road J. T. Howell 33320 1958-5-24
GH: 01087600 Caulanthus pilosus S. Watson USA: California Near Little Round Valley J. T. Howell 14342 1938-8-7
GH: 01087600 Caulanthus sp. USA: California Near Little Round Valley J. T. Howell 14342 1938-8-7
GH: 00986389 Descurainia incana (Bernhardi ex Fischer & C. A. Meyer) Dorn USA: Nevada [data not captured] J. T. Howell 14062 1938-8-3
GH: 01084127 Descurainia pinnata intermedia (Rydberg) Detling USA: California [data not captured] J. T. Howell 12290 1934-6-30
GH: 01103330 Draba asterophora Payson USA: Nevada [data not captured] J. T. Howell 1938-8-4
GH: 00379257 Draba cruciata Payson USA: California Eagle Lake Trail J. T. Howell 27798 1951-7-16
GH: 00379260 Draba cruciata Payson USA: California Eagle Lake Trail near Mineral King J. T. Howell 17156 1942-7-25
GH: 00379287 Draba lemmoni S. Watson USA: California Mt. Dana J. T. Howell 14536 1938-8-11
GH: 00379300 Draba oligosperma Hooker USA: California Mono Mesa J. T. Howell 22696 1986-7-24
GH: 00379302 Draba oligosperma Hooker USA: California San Joaquin Mt. J. T. Howell 16877 1941-8-8
GH: 00379300 Draba oligosperma subsessilis (Watson) O. E. Schulz USA: California Mono Mesa J. T. Howell 22696 1986-7-24
GH: 00379302 Draba oligosperma subsessilis (Watson) O. E. Schulz USA: California San Joaquin Mt. J. T. Howell 16877 1941-8-8
GH: 00379341 Draba sierrae Sharsmith USA: California South side of Mono Pass J. T. Howell 22506 1946-7-18
GH: 00379342 Draba sierrae Sharsmith USA: California Mono Pass, Fresno-Inyo Cos. J. T. Howell 16381 1941-7-22
GH: 00379380 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Near Midway J. T. Howell 13746 1938-4-10
GH: 00379392 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Oil Canyon J. T. Howell 5850 1931-3-18
GH: 00379446 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Kern River Canyon above Roads End J. T. Howell 37273 1962-5-22
GH: 00379559 Erysimum capitatum perenne (S. Watson ex Coville) R. J. Davis USA: California Near Isberg Lake J. T. Howell 34389 1958-8-13
GH: 00379559 Erysimum perenne (S. Watson ex Coville) Abrams USA: California Near Isberg Lake J. T. Howell 34389 1958-8-13
GH: 00387508 Erysimum teretifolium Eastwood USA: California Sand Hills 1 mile east of Felton J. T. Howell 19625 1944-6-11
GH: 00387510 Erysimum teretifolium Eastwood USA: California Ben Lomond J. T. Howell 14760 1939-6-16
GH: 01540362 Guillenia flavescens (Hooker) Greene USA: California [data not captured] J. T. Howell 10881 1933-3-26
GH: 01540366 Guillenia flavescens (Hooker) Greene USA: California [data not captured] J. T. Howell 6024 1931-3-29
GH: 01540192 Guillenia lasiophylla (Hooker & Arnott) Greene USA: California [data not captured] J. T. Howell 39073 1963-5-6
GH: 01540202 Guillenia lasiophylla (Hooker & Arnott) Greene USA: California [data not captured] J. T. Howell 1972-4-24
GH: 01540636 Heterodraba unilateralis (M. E. Jones) Greene USA: California [data not captured] J. T. Howell 6025 1931-3-29
GH: 01540646 Hirschfeldia incana (Linnaeus) Lagreze-Fossat USA: California [data not captured] J. T. Howell 14846 1939-7-2
GH: 01548087 Lepidium densiflorum Schrader USA: California [data not captured] J. T. Howell 32893 1957-8-12
GH: 01548396 Lepidium dictyotum A. Gray USA: California [data not captured] J. T. Howell 4111 1929-3-31
GH: 01548445 Lepidium dictyotum acutidens A. Gray USA: California [data not captured] J. T. Howell 10894 1933-3-29
GH: 01548847 Lepidium lasiocarpum Nuttall USA: California [data not captured] J. T. Howell 25339 1949-5-25
GH: 00379719 Lepidium latipes Hooker USA: California 3 miles north of Jolon J. T. Howell 39135 1963-5-6
GH: 00379726 Lepidium latipes Hooker USA: California Mustang Grade east of San Lorenzo Creek J. T. Howell 39500 1963-6-21
GH: 00379733 Lepidium montanum Nuttall USA: California Alturus J. T. Howell 12182 1934-6-15
GH: 00379805 Phoenicaulis cheiranthoides Nuttall USA: California North Fork of Bishop Creek J. T. Howell 33481 1958-5-27
GH: 00379865 Stanfordia californica S. Watson USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5821 1931-3-18
GH: 00422180 Streptanthus albidus Greene USA: California Metcalf Road in hills east of Coyote J. T. Howell 13097 1937-7-5
GH: 00379960 Streptanthus batrachopus J. L. Morrison USA: California east of Collier Spring, Mt. Tamalpais J. T. Howell 14681 1939-5-14
GH: 00379961 Streptanthus batrachopus J. L. Morrison USA: California Carson Ridge J. T. Howell 22122 1946-6-23
GH: 00379962 Streptanthus batrachopus J. L. Morrison USA: California Carson Ridge J. T. Howell 16994 1942-6-21
GH: 00379985 Streptanthus breweri A. Gray USA: California Mt. St. Helena Creek, northern Napa County J. T. Howell 13101 1937-7-18
GH: 00422074 Streptanthus farnsworthianus J. T. Howell USA: California on road from Giant Forest to Three Rivers J. T. Howell 46584 1970-6-11
GH: 00422079 Streptanthus fenestratus (Greene) J. T. Howell USA: California Copper Creek Trail, Kings River Canyon J. T. Howell 35335 1960-6-6
GH: 00422080 Streptanthus fenestratus (Greene) J. T. Howell USA: California Tehipite Valley, Middle Fork of the Kings Ri... J. T. Howell 33961 1958-7-26
GH: 00422085 Streptanthus glandulosus Hooker USA: California Cachagua Creek, Santa Lucia Mts. J. T. Howell 30251 1955-5-21
GH: 00422104 Streptanthus glandulosus Hooker USA: California Conn Valley J. T. Howell 6453 1931-4-19
GH: 00422123 Streptanthus glandulosus Hooker USA: California Upper St. Helena Creek J. T. Howell 15453 1940-5-19
GH: 00422131 Streptanthus glandulosus Hooker USA: California Santa Rosa Canyon, n. of Mt. Hood J. T. Howell 6178 1931-4-4
GH: 00422143 Streptanthus glandulosus pulchellus (Greene) Kruckeberg USA: California San Anselmo Canyon J. T. Howell 13791 1938-5-22
GH: 00422144 Streptanthus glandulosus pulchellus (Greene) Kruckeberg USA: California Near Rock Spring, Mt. Tamalpais J. T. Howell 13907 1938-6-9
GH: 00422145 Streptanthus glandulosus pulchellus (Greene) Kruckeberg USA: California Head of Steep Ravine, Mt. Tamalpais J. T. Howell 13922 1938-6-19
GH: 00422151 Streptanthus glandulosus pulchellus (Greene) Kruckeberg USA: California Carson country J. T. Howell 21815 1946-5-12
GH: 00422157 Streptanthus glandulosus secundus (Greene) Kruckeberg USA: California slope at head of Lucas Valley J. T. Howell 13945 1938-7-3
GH: 00422158 Streptanthus glandulosus secundus (Greene) Kruckeberg USA: California San Rafael hills J. T. Howell 17976 1943-5-9
GH: 00422164 Streptanthus glandulosus sonomensis (Kruckeberg) M. S. Mayer & D. W. Taylor USA: California Near Petrified Forest J. T. Howell 13077 1937-7-4
GH: 00422180 Streptanthus glandulosus albidus (Greene) Al-Shebaz, M. S. Mayer & D. W. Taylor USA: California Metcalf Road in hills east of Coyote J. T. Howell 13097 1937-7-5
GH: 00422184 Streptanthus glandulosus albidus (Greene) Al-Shebaz, M. S. Mayer & D. W. Taylor USA: California Coyote Creek, 3 miles east of Madrone J. T. Howell 13092 1937-7-5
GH: 00422174 Streptanthus gracilis Eastwood USA: California Slope north of Reflection Lake J. T. Howell 15883 1940-8-2
GH: 00422314 Streptanthus tortuosus Kellogg USA: California Generals Highway at Dorst Creek J. T. Howell 41380 1965-9-13
GH: 00422319 Streptanthus tortuosus Kellogg USA: California Injun Jim Campground at confluence of Granit... J. T. Howell 41998 1966-7-26
GH: 00422330 Streptanthus tortuosus Kellogg USA: California Meyers J. T. Howell 39845 1963-7-12
GH: 00422358 Streptanthus tortuosus Kellogg USA: California 3 miles from Briceburg on road to El Portal ... J. T. Howell 48689 1972-4-24
GH: 00422374 Streptanthus tortuosus Kellogg USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 33821 1958-7-23
GH: 00422386 Streptanthus tortuosus Kellogg USA: California El Portal J. T. Howell 40526 1964-4-27
GH: 00422388 Streptanthus tortuosus Kellogg USA: California 3 miles from Briceburg on road to El Portal ... J. T. Howell 48689 1972-4-24
GH: 00422408 Streptanthus tortuosus Kellogg USA: California Silver Creek, about 1 mile northeast of Lake... J. T. Howell 52469 1977-8-2
GH: 00422408 Streptanthus tortuosus orbiculatus (Greene) H. M. Hall USA: California Silver Creek, about 1 mile northeast of Lake... J. T. Howell 52469 1977-8-2
GH: 00422450 Thelypodium laciniatum (Hooker) Endlicher USA: California Bishop Creek J. T. Howell 33576 1958-5-28
GH: 00422485 Tropidocarpum capparideum Greene USA: California Near Midway J. T. Howell 13747 1938-4-10
GH: 00422517 Tropidocarpum dubium Davidson USA: California Poncho Rico Canyon, 5 miles east of San Bern... J. T. Howell 5981 1931-3-23
GH: 00422517 Tropidocarpum gracile Hooker USA: California Poncho Rico Canyon, 5 miles east of San Bern... J. T. Howell 5981 1931-3-23
GH: 01731952 Turritis glabra Linnaeus Canada: British Columbia Vancouver Island: Campbell River J. T. Howell 7599 1931-7-30
GH: 01733010 Turritis glabra Linnaeus USA: California Simpson Meadow, Middle Fork of the Kings Riv... J. T. Howell 33730 1958-7-22
GH: 01733057 Turritis glabra Linnaeus USA: California Plum Valley, Warner Mts J. T. Howell 12021 1934-6-12
Bromeliaceae GH: 02546011 Bromelia pinguin Linnaeus Costa Rica: Port Parker J. T. Howell 10239 1932-7-4
GH: 01817459 Tillandsia circinnata Schlechtendal Costa Rica: Port Parker J. T. Howell 1932-7-4
Bryaceae FH: 00797675 Bryum alpinum Hudson ex Withering USA: California [data not captured] J. T. Howell 1954-6-5
FH: 00798054 Bryum argenteum Hedwig Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
FH: 00798048 Bryum argenteum Hedwig USA: California [data not captured] J. T. Howell H-140 1954-6-29
FH: 00798385 Bryum caespiticium Hedwig Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
FH: 00798675 Bryum capillare torquescens (Bruch ex De Notaris) Kindberg USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00798907 Bryum gemmiparum De Notaris USA: California [data not captured] J. T. Howell 1954-6-5
FH: 00916267 Pohlia drummondii (Müller Halle) A. L. Andrews USA: Oregon [data not captured] J. T. Howell 1931-6-28
Burseraceae GH: 00044391 Bursera howellii Standley Costa Rica: Port Parker J. T. Howell 10244 1932-7-4
Buxbaumiaceae FH: 00799735 Buxbaumia indusiata Bridel USA: Oregon [data not captured] J. T. Howell 1931-6-23
FH: 00799736 Buxbaumia indusiata Bridel USA: Washington [data not captured] J. T. Howell 1931-7-21
Cactaceae GH: 01874752 Cereus nesioticus K. Schumann Ecuador: Galapagos Province 5 miles ne. of Webb Cove, Albemarle I. J. T. Howell 9456 1932-5-22
GH: 01874753 Cereus nesioticus K. Schumann Ecuador: Galapagos Province Southeast side, Narborough Island J. T. Howell 9631A 1932-6-1
GH: 01874754 Cereus nesioticus K. Schumann Ecuador: Galapagos Province Southeast side, Narborough Island J. T. Howell 9631 1932-6-1
GH: 01875345 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province Sullivan Bay, James Island J. T. Howell 10007 1932-6-13
GH: 01875346 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province near Post Office Bay, Charles Island J. T. Howell 8847 1932-4-24
GH: 01875347 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province 5 imles ne. of Webb Cove, Albemarle Island J. T. Howell 9457 1932-5-22
GH: 01677382 Opuntia echios J. T. Howell Ecuador: Galapagos Province Near Villamil, Albemarle Island J. T. Howell 8962 1932-4-27
GH: 01677384 Opuntia echios J. T. Howell Ecuador: Galapagos Province Conway Bay, Indefatigable Island J. T. Howell 9848 1932-6-8
GH: 01677385 Opuntia echios J. T. Howell Ecuador: Galapagos Province Middle western part, South Seymour Island J. T. Howell 9919 1932-6-10
GH: 01677394 Opuntia galapageia Hemsley Ecuador: Galapagos Province Sullivan Bay, James Island J. T. Howell 10006 1932-6-13
GH: 01677399 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10100 1932-6-15
GH: 01677400 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10101 1932-6-15
GH: 01677401 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10099 1932-6-15
GH: 01677403 Opuntia insularis Stewart Ecuador: Galapagos Province Tagus Cove, Albemarle Island J. T. Howell 9516 1932-5-24
GH: 01677406 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Gardner Island near Hood Island J. T. Howell 8784 1932-4-22
GH: 01677407 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Black Beach, Charles Island J. T. Howell 9362 1932-5-16
GH: 01677408 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Black Beach, Charles Island J. T. Howell 9361 1932-5-16
Caesalpiniaceae A: 00366096 Cercidium floridum Bentham ex A. Gray USA: California Painted Canyon, Colorado Desert J. T. Howell 3547 1928-3-25
GH: 01676206 Cercis canadensis Linnaeus USA: California Merced River bottom at Hopeton Bridge J. T. Howell 4108 1929-3-29
Caliciaceae FH: 00197405 Dirinaria aegialita (Afzelius ex Acharius) B. J. Moore Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00472094 Dirinaria aegialita (Afzelius ex Acharius) B. J. Moore Mexico: [data not captured] J. T. Howell 18 1932-3-23
FH: 00197405 Dirinaria confusa D. D. Awasthi Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
Calycanthaceae A: 00376836 Calycanthus occidentalis Hooker & Arnott USA: California Sage Canyon, Napa Range J. T. Howell 3041 1927-8-23
Campanulaceae GH: 00033007 Campanula griffinii Morin USA: California The Pinnacles J. T. Howell 12938 1937-5-19
GH: 00033211 Downingia mirabilis J. T. Howell USA: California 5 miles northeast of Merced J. T. Howell 4200 1929-4-25
GH: 00033211 Downingia ornatissima eximia (Hoover) McVaugh USA: California 5 miles northeast of Merced J. T. Howell 4200 1929-4-25
Capparaceae A: 00378588 Isomeris arborea Nuttall ex Torrey & A. Gray USA: California north-east of Randsburg J. T. Howell 3196 1927-11-12
A: 00378588 Peritoma arborea (Nuttall) Iltis USA: California north-east of Randsburg J. T. Howell 3196 1927-11-12
Caprifoliaceae A: 00422791 Lonicera conjugialis Kellogg USA: California South Fork of Salmon River near Big Flat J. T. Howell 13304 1937-7-22
A: 00422794 Lonicera conjugialis Kellogg USA: California Sugar Bowl nw. of Mt. Lincoln J. T. Howell 18855 1943-7-26
A: 00422795 Lonicera conjugialis Kellogg USA: California Black Butte J. T. Howell 19816 1944-7-16
A: 00422798 Lonicera conjugialis Kellogg USA: California Reflection Lake J. T. Howell 16012 1940-8-5
A: 00422977 Lonicera involucrata (Richardson) Banks ex Sprengel USA: California Canyon of Snow Basin Creek J. T. Howell 19274 1943-8-11
A: 00386002 Lonicera ledebourii Eschscholtz USA: California Berkeley: Strawberry Cañon, Berkeley Hills J. T. Howell 1686 1926-3-19
A: 00386073 Lonicera subspicata johnstonii D. D. Keck USA: California Between Sierra Madre and Santa Anita Cañon,... J. T. Howell 3157 1927-10-16
GH: 00386076 Lonicera subspicata johnstonii D. D. Keck USA: California Cochie Canyon, Santa Cruz I. J. T. Howell 6278 1931-4-12
GH: 00386084 Sambucus caerulea Rafinesque USA: California San Lorenzo Creek, 5 miles from King City J. T. Howell 32121 1957-4-30
GH: 00386155 Sambucus caerulea Rafinesque USA: California Leavitt Meadow J. T. Howell 46211 1969-9-14
A: 00386205 Sambucus caerulea Rafinesque USA: California 1.5 miles north of Felton J. T. Howell 19597 1944-6-11
A: 00386101 Sambucus glauca Nuttall USA: California South fork of Salmon River near Big Flat J. T. Howell 13358 1937-7-23
A: 00386129 Sambucus glauca Nuttall USA: California Near junction of Tangle Blue and Scott Mt. c... J. T. Howell 12825 1936-8-26
GH: 00386236 Sambucus microbotrys Rydberg USA: California Granite Basin J. T. Howell 33689 1958-7-20
GH: 00386084 Sambucus nigra cerulea (Rafinesque) Bolli USA: California San Lorenzo Creek, 5 miles from King City J. T. Howell 32121 1957-4-30
A: 00386101 Sambucus nigra cerulea (Rafinesque) Bolli USA: California South fork of Salmon River near Big Flat J. T. Howell 13358 1937-7-23
A: 00386129 Sambucus nigra cerulea (Rafinesque) Bolli USA: California Near junction of Tangle Blue and Scott Mt. c... J. T. Howell 12825 1936-8-26
GH: 00386155 Sambucus nigra cerulea (Rafinesque) Bolli USA: California Leavitt Meadow J. T. Howell 46211 1969-9-14
A: 00386205 Sambucus nigra cerulea (Rafinesque) Bolli USA: California 1.5 miles north of Felton J. T. Howell 19597 1944-6-11
A: 00386234 Sambucus racemosa Linnaeus USA: California Spirit Lake, Marble Mts. J. T. Howell 15011 1939-8-3
GH: 00386236 Sambucus racemosa Linnaeus USA: California Granite Basin J. T. Howell 33689 1958-7-20
A: 00386267 Symphoricarpos acutus (A. Gray) Dieck USA: California Snow Basin n. of Black Butte J. T. Howell 1944-7-16
A: 00386271 Symphoricarpos acutus (A. Gray) Dieck USA: California Mineral King J. T. Howell 17116 1942-7-24
A: 02036097 Symphoricarpos mollis Nuttall ex Torrey & A. Gray Canada: British Columbia Vancouver Island: Near Oyster River at its m... J. T. Howell 7562 1931-7-28
A: 00386347 Symphoricarpos mollis Nuttall ex Torrey & A. Gray USA: California Spirit Lake, Marble Mts. J. T. Howell 14947 1939-8-2
A: 00386365 Symphoricarpos mollis Nuttall ex Torrey & A. Gray USA: California South Fork of Salmon River near Big Flat J. T. Howell 13362 1937-7-23
GH: 00386393 Symphoricarpos parishii Rydberg USA: California Near Mineral King at Franklin Creek on Farew... J. T. Howell 45905 1969-8-25
Caryophyllaceae GH: 01741005 Arenaria capillaris Poiret USA: California Near Isberg Lake J. T. Howell 34320 1958-8-12
GH: 01741007 Arenaria capillaris Poiret USA: California Ridge N.W. of San Joaquin Mt. J. T. Howell 16612 1941-7-31
GH: 01741886 Arenaria macradenia ferrisiae Abrams USA: California Ten miles from Wofford Heights on (old) road... J. T. Howell 47353 1970-9-23
GH: 01741915 Arenaria pumicola F. V. Coville & J. B. Leiberg USA: California Bishop Creek J. T. Howell 33535 1958-5-28
GH: 00037611 Arenaria rosei Maguire & Barneby USA: California Serpentine slope, Peanut, alt. 2500 feet J. T. Howell 30370 1955-6-13
GH: 00037783 Paronychia ahartii Ertter USA: California 8.5 miles south of Corning J. T. Howell 30307 1955-6-12
GH: 00376655 Silene aperta Greene USA: California Trail from Bakeoven to Templeton Meadows J. T. Howell 27003 1950-7-17
GH: 00376668 Silene bernardina S. Watson USA: California Agnew Pass Trail J. T. Howell 16542 1941-7-31
GH: 00037966 Spergularia atrosperma R. Rossbach USA: California Los Banos Hills J. T. Howell 13826 1938-5-28
GH: 00404827 Spergularia media (Linnaeus) C. Presl USA: California Salt marsh J. T. Howell 19397 1944-4-23
GH: 00404829 Spergularia media (Linnaeus) C. Presl USA: California Salt marsh at head of Drake's Bay J. T. Howell 21429 1945-8-19
GH: 00376698 Stellaria obtusa Engelmann USA: California Plaskett Meadows J. T. Howell 19011 1943-8-4
Celastraceae A: 00378505 Paxistima myrsinites (Pursh) Rafinesque USA: California Near Spirit Lake, Marble Mts. J. T. Howell 15056 1939-8-4
Cephaloziaceae FH: 00496525 Cephalozia lunulifolia (Dumortier) Dumortier USA: California [data not captured] J. T. Howell 1936-8-23
FH: 00996072 Pleuroclada albescens (Hooker) Spruce USA: California above Reflection Lake J. T. Howell 510 1940-8-2
Chenopodiaceae GH: 02004834 Atriplex argentea expansa (S. Watson) S. L. Welsh & Reveal USA: California [data not captured] J. T. Howell 50265 1973-10-31
GH: 02004833 Atriplex argentea expansa (S. Watson) S. L. Welsh & Reveal USA: California [data not captured] J. T. Howell 44042 1967-11-3
GH: 00295481 Atriplex cordulata Jepson USA: California Montezuma Hills J. T. Howell 11687 1933-9-17
GH: 00295495 Atriplex coronata S. Watson USA: California 5.4 miles from Byron on Marsh Creek Road J. T. Howell 5503 1930-9-28
GH: 00295499 Atriplex fruticulosa Jepson USA: California [data not captured] J. T. Howell 5324 1930-6-28
GH: 00295487 Atriplex fruticulosa Jepson USA: California [data not captured] J. T. Howell 32705 1957-6-23
GH: 02003961 Atriplex gmelinii C. A. Meyer ex Bongard USA: California [data not captured] J. T. Howell 5528 1930-10-5
GH: 00376396 Atriplex hymenelytra (Torrey) S. Watson USA: California Thousand Palms, Colorado Desert J. T. Howell 3289 1928-1-28
GH: 01826366 Atriplex patula Linnaeus USA: California [data not captured] J. T. Howell 21416 1945-8-19
GH: 01826360 Atriplex patula Linnaeus USA: California [data not captured] J. T. Howell 21380 1945-8-12
GH: 01826859 Atriplex semibaccata R. Brown USA: California [data not captured] J. T. Howell 19338 1943-11-21
GH: 01826920 Atriplex suberecta I. Verdoorn USA: California [data not captured] J. T. Howell 50263 1973-10-18
GH: 01826917 Atriplex suberecta I. Verdoorn USA: California [data not captured] J. T. Howell 44020 1967-11-3
GH: 01781112 Bassia hyssopifolia (Pallas) Kuntze USA: California [data not captured] J. T. Howell 12247 1934-6-17
GH: 01781269 Blitum californicum S. Watson USA: California [data not captured] J. T. Howell 21867 1946-5-16
GH: 01782069 Chenopodium album missouriense (Aellen) Bassett & Crompton USA: California [data not captured] J. T. Howell 15380 1939-10-24
GH: 01782403 Chenopodium berlandieri sinuatum (Murr) Wahl USA: California [data not captured] J. T. Howell 30911 1955-9-7
GH: 01782418 Chenopodium berlandieri zschackii (Murr) Murr ex Ascherson USA: California [data not captured] J. T. Howell 30897 1955-8-24
GH: 01782417 Chenopodium berlandieri zschackii (Murr) Murr ex Ascherson USA: California [data not captured] J. T. Howell 31883 1956-9-26
GH: 01782672 Chenopodium nevadense Standley USA: Nevada [data not captured] J. T. Howell 8000 1931-8-25
GH: 01782668 Chenopodium nevadense Standley USA: California [data not captured] J. T. Howell 19087 1943-8-5
GH: 01784041 Cycloloma atriplicifolium (Sprengel) J. M. Coulter USA: California [data not captured] J. T. Howell 2778A 1927-7-15
GH: 00295366 Extriplex californica (Moquin-Tandon) E. H. Zacharias USA: California [data not captured] J. T. Howell 1945-6-30
GH: 01784579 Extriplex joaquinana (A. Nelson) E. H. Zacharias USA: California [data not captured] J. T. Howell 11440 1933-7-20
GH: 01784960 Micromonolepis pusilla (Torrey ex S. Watson) Ulbrich USA: California [data not captured] J. T. Howell 11895 1934-6-10
GH: 01783185 Oxybasis macrosperma (Hooker f.) S. Fuentes, Uotila & Borsch USA: California [data not captured] J. T. Howell 24194 1947-10-26
GH: 01783974 Salsola tragus Linnaeus USA: California [data not captured] J. T. Howell 26640 1950-7-11
A: 00376592 Sarcobatus vermiculatus (Hooker) Torrey USA: California Horse Lake J. T. Howell 11897 1934-6-10
GH: 00376557 Suaeda californica S. Watson USA: California Bayfarm Island J. T. Howell 19327 1943-9-12
A: 00376575 Suaeda californica S. Watson USA: California Bayfarm Island J. T. Howell 19327 1943-9-12
GH: 01785663 Suaeda nigra (Rafinesque) J. F. Macbride USA: California [data not captured] J. T. Howell 11441 1933-7-20
Convolvulaceae GH: 02055141 Calystegia malacophylla (Greene) Munz USA: California Mineral King J. T. Howell 17120 1942-7-24
GH: 02055158 Calystegia malacophylla pedicellata (Jepson) Munz USA: California Near Deer Flat, Mt. Diablo J. T. Howell 16964 1942-5-24
GH: 00369470 Calystegia purpurata (Greene) Brummitt USA: California North side of Mt. Tamalpais J. T. Howell 11197 1933-4-30
Cornaceae A: 00385535 Cornus californica C. A. Meyer USA: California Between Zumwalt Meadows and Bubbs Creek, Kin... J. T. Howell 15602 1940-7-28
A: 00385350 Cornus glabrata Bentham USA: California One mile below Samuels Springs, Pope Creek C... J. T. Howell 4359 1929-8-4
A: 00385385 Cornus glabrata Bentham USA: California 3 1/2 miles from Knoxville on road to Lower ... J. T. Howell 14654 1939-5-7
A: 00385414 Cornus nuttallii Audubon ex Torrey & A. Gray USA: California Grant Forest, Sequoia Park near Sunset rock J. T. Howell 3075 [?] 1927-8-26
A: 00385445 Cornus occidentalis (Torrey & A. Gray) Coville USA: California Near Trinity Center J. T. Howell 12705 1936-8-23
GH: 00385470 Cornus sessilis Torrey USA: California Rubicon River Canyon, near waterfall, n-ne. ... J. T. Howell 46563 1970-5-27
A: 00385485 Cornus sessilis Torrey USA: California Near Trinity Center J. T. Howell 12706 1936-8-23
A: 00385455 Cornus sp. USA: California Near Trinity Center J. T. Howell 12844 1936-8-27
A: 00385523 Cornus stolonifera Michaux USA: California Spirit Lake, Marble Mts. J. T. Howell 14978 1939-8-3
A: 00385535 Cornus stolonifera Michaux USA: California Between Zumwalt Meadows and Bubbs Creek, Kin... J. T. Howell 15602 1940-7-28
A: 00385554 Cornus stolonifera Michaux USA: California Canyon of Snow Basin Creek J. T. Howell 19281 1943-8-11
Crassulaceae GH: 00376806 Dudleya blochmaniae (Eastwood) Moran USA: California Conejo Grade J. T. Howell 6568 1931-5-29
GH: 01987413 Dudleya cymosa (Lemaire) Britton & Rose USA: California Above Bootjack, Mt. Tamalpais J. T. Howell 22188 1946-7-7
GH: 01987532 Dudleya linearis Britton & Rose Mexico: Baja California Norte South Bay, Cedros Island J. T. Howell 10709 1932-8-17
GH: 00376806 Hasseanthus kessleri Davidson USA: California Conejo Grade J. T. Howell 6568 1931-5-29
GH: 01991204 Sedella leiocarpa H. Sharsmith USA: California 8.9 miles south of Kelseyville J. T. Howell 18037 1943-5-11
GH: 01991212 Sedella pumila Britton & Rose USA: California Sierra foothills, 4.7 miles west of San Andr... J. T. Howell 4705 1930-4-13
GH: 01991232 Sedella pumila Britton & Rose USA: California 7 1/2 miles SW. of Merced on Los Banos Road,... J. T. Howell 4147 1929-4-11
GH: 00395107 Sedum kiersteadiae B. L. Wilson & R. E. Brainerd USA: California Stuarts Fork of Trinity River J. T. Howell 13502 1937-7-25
GH: 00395109 Sedum kiersteadiae B. L. Wilson & R. E. Brainerd USA: California Scott Mt. between Trinity and Siskiyou count... J. T. Howell 13665 1937-7-29
GH: 01991724 Sedum obtusatum A. Gray USA: California Stuarts Fork of Trinity River J. T. Howell 13503 1937-7-25
GH: 01991730 Sedum obtusatum boreale R. T. Clausen USA: California Canyon of Snow Basin Creek J. T. Howell 19096 1943-8-5
GH: 00395106 Sedum oregonense (S. Watson) M. Peck USA: California Caribou Basin, Salmon-Trinity Alps J. T. Howell 13450 1937-7-25
GH: 00395107 Sedum oregonense (S. Watson) M. Peck USA: California Stuarts Fork of Trinity River J. T. Howell 13502 1937-7-25
GH: 01991868 Sedum purdyi Jepson USA: California Between Big Flat and Caribou Gulch J. T. Howell 13565 1937-7-26
GH: 01990165 Sedum spathulifolium Hooker USA: California Sage Cañon, Napa Range J. T. Howell 4280 1929-5-30
Crossosomataceae A: 00347402 Crossosoma bigelovii S. Watson USA: California Morongo Canyon, n. Colorado Desert J. T. Howell 3414 1928-3-11
Cryphaeaceae FH: 00787203 Bestia breweriana (Lesquereux) Grout USA: California [data not captured] J. T. Howell 1932-10-9
Cucurbitaceae GH: 01543749 Citrullus lanatus (Thunberg) Matsumura & Nakai USA: California Along Kern River between Kernville and River... J. T. Howell 47246 1970-9-22
Cupressaceae GH: 00356724 Calocedrus decurrens (Torrey) Florin USA: California Cooks Peak, Greenhorn Mts. J. T. Howell 38781 1962-9-22
A: 00356422 Cupressus bakeri Jepson USA: California Lava flow between Timered Crater and Little ... J. T. Howell 12386 1934-7-4
GH: 00357953 Cupressus forbesii Jepson USA: California On steep rocky slope at head of Sierra Peak,... J. T. Howell 2983A 1927-8-10
GH: 00357953 Cupressus guadalupensis forbesii (Jepson) Beauchamp USA: California On steep rocky slope at head of Sierra Peak,... J. T. Howell 2983A 1927-8-10
A: 00356048 Cupressus macnabiana A. Murray USA: California Lake Co., on road from Lower Lake to Knoxvil... J. T. Howell 14650 1939-5-7
A: 00356108 Cupressus sargentii Jepson USA: California Serpentine ridge, 2 miles east of Occidental J. T. Howell 10960 1933-4-2
GH: 00356265 Juniperus californica Carr USA: California 0.5 mi. south of summit of Bodfish-Havilah R... J. T. Howell 47381 1970-9-24
GH: 00356266 Juniperus californica Carr USA: California 0.5 mi. south of summit of Bodfish-Havilah R... J. T. Howell 47382 1970-9-24
A: 00356308 Juniperus occidentalis Hooker USA: California Parker Creek, Warner Mts. J. T. Howell 12208B 1934-6-16
A: 00356318 Juniperus occidentalis Hooker USA: California Ouzel Basin J. T. Howell 15974 1940-8-4
A: 00356349 Juniperus occidentalis Hooker USA: California Parker Creek, Warner Mts. J. T. Howell 12208A 1934-6-16
GH: 00356724 Libocedrus decurrens Torrey USA: California Cooks Peak, Greenhorn Mts. J. T. Howell 38781 1962-9-22
Cyperaceae GH: 00273539 Calliscirpus brachythrix (A. Gray) C. N. Gilmour, J. R. Starr & Naczi USA: California Frog Lake J. T. Howell 18782 1943-7-24
GH: 00274455 Carex albonigra Mackenzie USA: California Mono Mesa J. T. Howell 22715 1946-7-26
GH: 00274469 Carex amplectens Mackenzie USA: California Tuolumne Big Trees J. T. Howell 20706 1944-8-18
GH: 02315000 Carex brevipes W. Boott ex B. D. Jackson USA: California [data not captured] J. T. Howell 16428 1941-7-24
GH: 02316997 Carex brevipes W. Boott ex B. D. Jackson USA: California [data not captured] J. T. Howell 17604 1942-8-3
GH: 02316996 Carex brevipes W. Boott ex B. D. Jackson USA: California [data not captured] J. T. Howell 17294 1942-7-27
GH: 02316995 Carex brevipes W. Boott ex B. D. Jackson USA: California [data not captured] J. T. Howell 17380 1942-7-29
GH: 02316992 Carex brevipes W. Boott ex B. D. Jackson USA: California [data not captured] J. T. Howell 39655 1963-7-9
GH: 02315021 Carex brevipes W. Boott ex B. D. Jackson USA: Washington [data not captured] J. T. Howell 1882-8-15
GH: 02368170 Carex breweri Boott USA: California [data not captured] J. T. Howell 17468 1942-7-31
GH: 02368169 Carex breweri Boott USA: California [data not captured] J. T. Howell 16633 1941-7-31
GH: 02367869 Carex capitata Linnaeus USA: Nevada [data not captured] J. T. Howell 14135 1938-8-3
GH: 02367865 Carex capitata Linnaeus USA: California [data not captured] J. T. Howell 17547 1942-8-1