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: 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: 00472196 Physcia adscendens (Fries) H. Olivier Mexico: [data not captured] J. T. Howell 1931-11-14
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
Agaricaceae FH: 00374173 Montagnites candollei Fries Ecuador: Galapagos Province [no additional data] J. T. Howell 1931
Amblystegiaceae FH: 00544438 Amblystegium juratzkanum Schimper USA: Oregon [data not captured] J. T. Howell 1931-6-8
FH: 00839289 Hygrohypnum ochraceum (Turner ex Wilson) Loeske USA: Washington [data not captured] J. T. Howell 1931-7-18
Asteraceae 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: 02020378 Cirsium breweri (A. Gray) Jepson USA: California [data not captured] J. T. Howell 8018 1931-8-26
GH: 02020477 Cirsium candidissimum Dammer USA: Nevada [data not captured] J. T. Howell 8012 1931-8-26
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: 02021474 Cirsium occidentale (Nuttall) Jepson USA: California [data not captured] J. T. Howell 6259 1931-4-11
GH: 02021725 Cirsium remotifolium (Hooker) de Candolle USA: Oregon [data not captured] J. T. Howell 6879 1931-6-21
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: 00037684 Grindelia arenicola pachyphylla Steyermark USA: California Open coastal plain 6 miles south of Point Ar... J. T. Howell 8106 1931-9-27
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: 00414536 Helianthella castanea Greene USA: California Nortonville J. T. Howell 6475 1931-5-12
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: 02204054 Heterotheca oregona (Nuttall) Shinners USA: California [data not captured] J. T. Howell 8034 1931-9-6
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: 00427300 Lembertia congdonii (A. Gray) Greene USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5811 1931-3-18
GH: 00414055 Lessingia germanorum Chamisso USA: California San Francisco: Presidio J. T. Howell 8126 1931-9-29
GH: 00427300 Monolopia congdonii (A. Gray) B. G. Baldwin USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5811 1931-3-18
Aulacomniaceae FH: 00520009 Aulacomnium androgynum (Hedwig) Schwägrichen USA: Oregon [data not captured] J. T. Howell 1931-7-10
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
Boraginaceae GH: 00424564 Amsinckia douglasiana de Candolle USA: California Stone Canyon J. T. Howell 5970 1931-3-22
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: 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: 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: 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: 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: 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: 01957255 Amsinckia vernicosa Hooker & Arnott USA: California 5 miles from Maricopa on Maricopa Grade J. T. Howell 5909 1931-3-21
GH: 01994652 Lappula echinata Gilibert Canada: Alberta 4 miles s. of Calgary J. T. Howell 7845 1931-8-20
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: 00974500 Athysanus pusillus (Hooker) Greene USA: California east side of Mt. Diablo 7 miles from Clayton... J. T. Howell 5754 1931-3-10
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: 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: 00946450 Boechera lyallii (S. Watson) Dorn USA: Washington [data not captured] J. T. Howell 7508 1931-7-23
GH: 00944039 Boechera stricta (Graham) Al-Shehbaz USA: Washington [data not captured] J. T. Howell 7471 1931-7-22
GH: 01783939 Boechera suffrutescens (S. Watson) Dorn USA: Oregon [data not captured] J. T. Howell 7097 1931-6-30
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: 01540335 Caulanthus anceps Payson USA: California Poncho Rico Canyon J. T. Howell 6001 1931-3-23
GH: 00379392 Erysimum capitatum (Douglas ex Hooker) Greene USA: California Oil Canyon J. T. Howell 5850 1931-3-18
GH: 01540366 Guillenia flavescens (Hooker) Greene USA: California [data not captured] J. T. Howell 6024 1931-3-29
GH: 01540636 Heterodraba unilateralis (M. E. Jones) Greene USA: California [data not captured] J. T. Howell 6025 1931-3-29
GH: 00379865 Stanfordia californica S. Watson USA: California Jacalitos Canyon, w. Fresno Co. J. T. Howell 5821 1931-3-18
GH: 00422104 Streptanthus glandulosus Hooker USA: California Conn Valley J. T. Howell 6453 1931-4-19
GH: 00422131 Streptanthus glandulosus Hooker USA: California Santa Rosa Canyon, n. of Mt. Hood J. T. Howell 6178 1931-4-4
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
Bryaceae FH: 00798675 Bryum capillare torquescens (Bruch ex De Notaris) Kindberg USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00916267 Pohlia drummondii (Müller Halle) A. L. Andrews USA: Oregon [data not captured] J. T. Howell 1931-6-28
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
Caprifoliaceae GH: 00386076 Lonicera subspicata johnstonii D. D. Keck USA: California Cochie Canyon, Santa Cruz I. J. T. Howell 6278 1931-4-12
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
Chenopodiaceae GH: 01782672 Chenopodium nevadense Standley USA: Nevada [data not captured] J. T. Howell 8000 1931-8-25
Crassulaceae GH: 00376806 Dudleya blochmaniae (Eastwood) Moran USA: California Conejo Grade J. T. Howell 6568 1931-5-29
GH: 00376806 Hasseanthus kessleri Davidson USA: California Conejo Grade J. T. Howell 6568 1931-5-29
Dicranaceae FH: 00542745 Dicranum fuscescens Hornschuch Canada: British Columbia [data not captured] J. T. Howell 1931-8-1
FH: 00791880 Dicranum scoparium Hedwig USA: Washington [data not captured] J. T. Howell 1931-7-21
FH: 00791889 Dicranum scoparium Hedwig USA: Washington [data not captured] J. T. Howell 1931-7-21
FH: 00842850 Kiaeria starkei (F. Weber & D. Mohr) I. Hagen USA: Washington [data not captured] J. T. Howell 1931-7-18
FH: 00842851 Kiaeria starkei (F. Weber & D. Mohr) I. Hagen USA: Washington [data not captured] J. T. Howell 1931-7-15
Ericaceae A: 01117408 Arctostaphylos columbiana Piper Canada: British Columbia Vancouver Island: 8 miles east of Cowichan L... J. T. Howell 7689 1931-8-4
GH: 01117422 Arctostaphylos columbiana Piper USA: Washington Near Blyn J. T. Howell 7705 1931-8-6
GH: 01117423 Arctostaphylos columbiana Piper USA: Washington West shore of Discovery Bay J. T. Howell 7692 1931-8-6
A: 01117426 Arctostaphylos columbiana Piper USA: Washington West shore of Discovery Bay J. T. Howell 7694 1931-8-6
A: 01117428 Arctostaphylos columbiana Piper USA: Washington West shore of Discovery Bay J. T. Howell 7692 1931-8-6
A: 00350219 Arctostaphylos densiflora M. S. Baker USA: California Vine Hill District J. T. Howell 5768 1931-3-14
GH: 00350221 Arctostaphylos densiflora M. S. Baker USA: California Vine Hill District J. T. Howell 5767 1931-3-14
GH: 00350502 Arctostaphylos insularis Greene ex Parry USA: California Santa Cruz Island J. T. Howell 6397 1931-4-15
A: 00350508 Arctostaphylos insularis Greene ex Parry USA: California Head of Cochie Canyon, Santa Cruz Island J. T. Howell 6302 1931-4-12
GH: 00350702 Arctostaphylos mariposa bivisa Jepson USA: California Chowchilla Mt. J. T. Howell 6683 1931-6-8
GH: 00014684 Arctostaphylos pechoensis viridissima Eastwood USA: California China Harbor, Santa Cruz Island J. T. Howell 6368 1931-4-14
GH: 00362562 Arctostaphylos sp. USA: California Vine Hill District J. T. Howell 5777 1931-3-14
GH: 00362563 Arctostaphylos sp. USA: California Vine Hill District J. T. Howell 5776 1931-3-14
GH: 00362564 Arctostaphylos sp. USA: California Vine Hill District J. T. Howell 5775 1931-3-14
A: 00350232 Arctostaphylos subcordata Eastwood USA: California Ravenswood, Santa Cruz Island J. T. Howell 6229 1931-4-10
A: 00350232 Arctostaphylos tomentosa subcordata (Eastwood) P. V. Wells USA: California Ravenswood, Santa Cruz Island J. T. Howell 6229 1931-4-10
A: 01536058 Arctostaphylos uva-ursi (Linnaeus) Sprengel Canada: British Columbia Vancouver Island: Craig J. T. Howell 7748 1931-8-12
A: 01536284 Arctostaphylos uva-ursi (Linnaeus) Sprengel Canada: Alberta Bow River Valley, 11 miles s. of Lake Louise J. T. Howell 7832 1931-8-18
A: 01536579 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Washington Mt. Angeles J. T. Howell 7434 1931-7-21
A: 00362683 Comarostaphylis diversifolia planifolia (Jepson) G. D. Wallace USA: California Ravenswood, Santa Cruz I. J. T. Howell 6226 1931-4-10
Fabaceae GH: 00366257 Astragalus clarianus Jepson USA: California 12.5 miles from St. Helena on Spring Mountai... J. T. Howell 6431 1931-4-19
GH: 00366258 Astragalus clarianus Jepson USA: California Conn Valley J. T. Howell 6442 1931-4-19
Fagaceae GH: 00344198 Quercus alvordiana Eastwood USA: California North slope near San Benito J. T. Howell 8047B. 1931-9-6
A: 00343462 Quercus tomentella Engelmann USA: California Santa Cruz Island near the west end J. T. Howell 6326 1931-4-13
Georgiaceae FH: 01133061 Tetraphis pellucida Hedwig USA: Oregon [data not captured] J. T. Howell 1931-6-25
Grimmiaceae FH: 00302900 Grimmia alpestris (F. Weber & D. Mohr) Schleicher USA: Washington near the summit of Mt. Angeles J. T. Howell 1931-7-23
FH: 00557567 Grimmia donniana Smith ex Spruce USA: Oregon [data not captured] J. T. Howell 1931-6-23
FH: 00557568 Grimmia donniana Smith ex Spruce USA: Oregon [data not captured] J. T. Howell 1931-6-26
FH: 00557572 Grimmia donniana Smith ex Spruce USA: Washington [data not captured] J. T. Howell 1931-7-19
FH: 00302900 Grimmia holzingeri Cardot & Thériot USA: Washington near the summit of Mt. Angeles J. T. Howell 1931-7-23
FH: 00487777 Grimmia laevigata (Bridel) Bridel Mexico: Baja California Norte [data not captured] J. T. Howell 1931-11-15
FH: 00302900 Grimmia nivalis Kindberg USA: Washington near the summit of Mt. Angeles J. T. Howell 1931-7-23
FH: 00545414 Grimmia nivalis Kindberg USA: Washington [data not captured] J. T. Howell 1931-7-15
FH: 00557923 Grimmia reflexidens Müller Halle USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00623663 Racomitrium canescens (Hedwig) Bridel USA: Oregon [data not captured] J. T. Howell 1931-7-10
FH: 00902143 Racomitrium heterostichum sudeticum (Funck) E. Bauer USA: Washington [data not captured] J. T. Howell 1931-7-15
FH: 00902402 Racomitrium microcarpum (Hedwig) Bridel USA: Washington [data not captured] J. T. Howell 1931-7-22
Hydrophyllaceae GH: 00401067 Phacelia keckii Munz & I. M. Johnston USA: California Santiago Peak, Santa Ana Mts. J. T. Howell 6611 1931-5-30
GH: 00401067 Phacelia suaveolens keckii (Munz & I. M. Johnston) Thorne USA: California Santiago Peak, Santa Ana Mts. J. T. Howell 6611 1931-5-30
Hypnaceae FH: 00840459 Hypnum circinale Hooker Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
Hypogymniaceae FH: 00450974 Hypogymnia physodes (Linnaeus) Nylander Mexico: [data not captured] J. T. Howell 15 1931
FH: 00450975 Hypogymnia physodes (Linnaeus) Nylander Mexico: [data not captured] J. T. Howell 14 1931
Isoetaceae GH: 02074976 Isoetes occidentalis L. F. Henderson Canada: British Columbia Vancouver Island: Cameron Lake J. T. Howell 7667 1931-8-2
Lamiaceae GH: 00400773 Pogogyne abramsii J. T. Howell USA: California 11 miles ne. of San Diego J. T. Howell 6636 1931-6-4
Lembophyllaceae FH: 00842755 Isothecium stoloniferum cardotii (Kindberg) Wijk & Margadant Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
Liliaceae GH: 00357569 Chlorogalum purpureum Brandegee USA: California Near Jolon, Santa Lucia Mts., Monterey Co. J. T. Howell 6535 1931-5-23
Malvaceae A: 00052902 Malacothamnus sp. USA: California Nortonville J. T. Howell 6470 1931-5-12
A: 00052902 Malvastrum fremontii Torrey ex A. Gray USA: California Nortonville J. T. Howell 6470 1931-5-12
GH: 00420529 Malvastrum fremontii Torrey ex A. Gray USA: California Nortonville J. T. Howell 6470 1931-5-12
GH: 00420529 Malvastrum howellii Eastwood USA: California Nortonville J. T. Howell 6470 1931-5-12
A: 00052902 Malvastrum howellii Eastwood USA: California Nortonville J. T. Howell 6470 1931-5-12
Mniaceae FH: 00846351 Mnium spinulosum Bruch & Schimper Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
FH: 00846359 Mnium spinulosum Bruch & Schimper Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
FH: 00846332 Mnium spinulosum Bruch & Schimper USA: Washington [data not captured] J. T. Howell 1931-7-19
FH: 00846339 Mnium spinulosum Bruch & Schimper USA: Washington [data not captured] J. T. Howell 1931-7-19
Orthotrichaceae FH: 00824027 Orthotrichum laevigatum J. E. Zetterstedt USA: California [data not captured] J. T. Howell 1931-6-8
FH: 00824054 Orthotrichum laevigatum macounii (Austin) E. Lawton & Vitt USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00824055 Orthotrichum laevigatum macounii (Austin) E. Lawton & Vitt USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00545862 Orthotrichum rupestre Schleicher ex Schwägrichen USA: California [data not captured] J. T. Howell 1931-6-8
FH: 01136748 Ulota megalospora Venturi USA: Washington [data not captured] J. T. Howell 1931-7-21
Papaveraceae GH: 00381369 Dendromecon harfordii Kellogg USA: California Cochie Canyon, Santa Cruz Island J. T. Howell 6275 1931-4-12
Parmeliaceae FH: 00492139 Tuckermannopsis chlorophylla (Willdenow) Hale Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 1931-11-15
FH: 00493496 Usnea ceratina Acharius Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 36 1931-11-15
FH: 00493670 Usnea florida (Linnaeus) Weber ex F. H. Wiggers Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-14
Physciaceae FH: 00388796 Anaptychia ciliatomarginata Linder Mexico: [data not captured] J. T. Howell 1931-11-16
Pinaceae A: 00487975 Pinus radiata binata (Engelmann) Lemmon Mexico: North end of Guadalupe Island, Lower Califor... J. T. Howell 8183 1931-11-15
A: 00487976 Pinus radiata binata (Engelmann) Lemmon Mexico: North end of Guadalupe Island, Lower Califor... J. T. Howell 8183 1931-11-15
Plagiotheciaceae FH: 00849244 Plagiothecium laetum Schimper USA: Washington [data not captured] J. T. Howell 1931-7-15
FH: 00849380 Plagiothecium undulatum (Hedwig) Schimper Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
FH: 00849386 Plagiothecium undulatum (Hedwig) Schimper Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-1
Plantaginaceae GH: 01803246 Plantago maritima juncoides (Lamarck) Hultén Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 7736 1931-8-11
Polemoniaceae GH: 01565916 Navarretia subuligera Greene USA: Oregon [data not captured] J. T. Howell 6778 1931-6-19
Polygonaceae GH: 00036246 Eriogonum argillosum J. T. Howell USA: California Poncho Rico Canyon J. T. Howell 5999 1931-3-23
GH: 00036271 Eriogonum cernuum viminale S. Stokes USA: Nevada 44 miles southwest of Wendover J. T. Howell 7952 1931-8-24
GH: 00036268 Eriogonum cernuum multipedunculatum S. Stokes USA: Nevada 40 miles west of Austin J. T. Howell 7988 1931-8-25
GH: 00036367 Eriogonum heermannii occidentale S. Stokes USA: California 10 miles southeast of San Benito, clay and s... J. T. Howell 8062 1931-9-7
A: 00061914 Eriogonum heermannii occidentale S. Stokes USA: California 10 miles southeast of San Benito, clay and s... J. T. Howell 8062 1931-9-7
A: 00364254 Eriogonum heermannii occidentale S. Stokes USA: California Rocky wash of San Benito River at Erie Schoo... J. T. Howell 8086 1931-9-7
A: 00364257 Eriogonum heermannii occidentale S. Stokes USA: California Rocky wash of San Benito River at Erie Schoo... J. T. Howell 8086 1931-9-7
GH: 00036433 Eriogonum microthecum intermedium S. Stokes USA: Nevada Ely J. T. Howell 7956 1931-8-24
GH: 00036433 Eriogonum microthecum simpsonii (Bentham) Reveal USA: Nevada Ely J. T. Howell 7956 1931-8-24
GH: 00364379 Eriogonum nudum indictum (Jepson) Reveal USA: California 2 miles NW. of Hernandez J. T. Howell 8082 1931-9-7
GH: 00036454 Eriogonum nutans brevipedicellatum S. Stokes USA: Nevada 30 miles west of Eureka J. T. Howell 7974 1931-8-25
GH: 00036454 Eriogonum nutans nutans USA: Nevada 30 miles west of Eureka J. T. Howell 7974 1931-8-25
GH: 00036466 Eriogonum ovalifolium bellum S. Stokes USA: Montana 14 miles south of Helena J. T. Howell 7900 1931-8-22
GH: 01986746 Eriogonum palmerianum Reveal USA: Nevada [data not captured] J. T. Howell 7944 1931-8-24
GH: 00036499 Eriogonum puberulum S. Watson USA: Nevada 34 miles east of Eureka J. T. Howell 7962 1931-8-24
GH: 00036499 Eriogonum puberulum venosum S. Stokes USA: Nevada 34 miles east of Eureka J. T. Howell 7962 1931-8-24
GH: 00036466 Eriogonum strictum proliferum (Torrey & A. Gray) S. Stokes USA: Montana 14 miles south of Helena J. T. Howell 7900 1931-8-22
GH: 02043356 Eriogonum umbellatum haussknechtii (Dammer) M. E. Jones USA: Oregon [data not captured] J. T. Howell 7276 1931-7-9
GH: 02043968 Eriogonum vimineum Douglas ex Bentham USA: California [data not captured] J. T. Howell 8055 1931-9-7
GH: 00036268 Eriogonum watsonii Torrey & A. Gray USA: Nevada 40 miles west of Austin J. T. Howell 7988 1931-8-25
GH: 00036499 Johanneshowellia puberula (S. Watson) Reveal USA: Nevada 34 miles east of Eureka J. T. Howell 7962 1931-8-24
GH: 02363721 Persicaria lapathifolia (Linnaeus) Delarbre USA: California San Francisco: [data not captured] J. T. Howell 8125 1931-9-29
GH: 02363703 Persicaria lapathifolia (Linnaeus) Delarbre USA: California San Francisco: [data not captured] J. T. Howell 8124 1931-9-29
Polytrichaceae FH: 01093543 Oligotrichum parallelum (Mitten) Kindberg USA: Washington slopes above Reflection Lake, Mt. Rainier J. T. Howell 1931-7-18
FH: 00918164 Polytrichum commune Hedwig USA: Oregon [data not captured] J. T. Howell 1931-6-22
FH: 00918786 Polytrichum juniperinum Hedwig Canada: British Columbia Vancouver Island: [data not captured] J. T. Howell 1931-8-4
FH: 00919321 Polytrichum piliferum Hedwig USA: Washington [data not captured] J. T. Howell 1931-7-15
Porellaceae FH: 00506034 Madotheca navicularis (Lehmann & Lindenberg) Nees USA: California San Francisco: [data not captured] J. T. Howell 1931-3-13
FH: 00508888 Porella navicularis (Lehmann & Lindenberg) Pfeiffer Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 1931-11-15
Portulacaceae GH: 01858606 Claytonia exigua Torrey & A. Gray USA: California Near summit of Butts Canyon road to Middleto... J. T. Howell 6152 1931-4-3
Pottiaceae FH: 00516097 Barbula elata Müller Halle USA: California [data not captured] J. T. Howell 1931-3-10
FH: 00540323 Desmatodon convolutus (Bridel) Grout Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-14
FH: 00540331 Desmatodon convolutus (Bridel) Grout Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 44 1931-11-14
FH: 00540332 Desmatodon convolutus (Bridel) Grout Mexico: Baja California Norte [data not captured] J. T. Howell 1931-11-18
FH: 00540438 Desmatodon latifolius (Hedwig) Bridel USA: Washington [data not captured] J. T. Howell 1931-7-23
FH: 01147168 Tortula brevipes (Lesquereux) Brotherus Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-14
FH: 01147173 Tortula brevipes (Lesquereux) Brotherus Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-14
FH: 01135461 Tortula princeps De Notaris USA: California [data not captured] J. T. Howell 1931-3-10
FH: 01135646 Tortula princeps De Notaris USA: California [data not captured] J. T. Howell 1931-6-8
FH: 01135981 Tortula ruralis (Hedwig) G. Gaertner, B. Meyer & Scherbius Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 46 1931-11-14
FH: 01135985 Tortula ruralis (Hedwig) G. Gaertner, B. Meyer & Scherbius Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 41 1931-11-14
FH: 01135989 Tortula ruralis (Hedwig) G. Gaertner, B. Meyer & Scherbius Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 43 1931-11-14
FH: 01135993 Tortula ruralis (Hedwig) G. Gaertner, B. Meyer & Scherbius USA: Oregon [data not captured] J. T. Howell 1931-6-28
FH: 00304488 Weissia controversa Hedwig Mexico: [data not captured] J. T. Howell 51 1931-11-14
Ptilidiaceae FH: 00509142 Ptilidium californicum (Austin) Pearson USA: Washington [data not captured] J. T. Howell 1931-7-15
Rhamnaceae GH: 00349313 Ceanothus foliosus Parry USA: California Vine Hill District, 10 miles west of Santa R... J. T. Howell 5780 1931-3-14
A: 01789554 Ceanothus fresnensis Dudley ex Abrams USA: California Summit of Chowchilla Mt. J. T. Howell 6685 1931-6-8
A: 00349354 Ceanothus gloriosus exaltatus J. T. Howell USA: California Vine Hill District, 9 miles west of Santa Ro... J. T. Howell 6694 1931-7-15
A: 00349355 Ceanothus gloriosus exaltatus J. T. Howell USA: California Vine Hill District, 10 miles west of Santa R... J. T. Howell 5781 1931-3-14
GH: 00349477 Ceanothus insularis Eastwood USA: California Santa Barbara: Cañada del Puerta Zuela, San... J. T. Howell 6215 1931-4-10
Rhytidiaceae FH: 00780867 Rhytidiopsis robusta (Hooker) Brotherus USA: Washington [data not captured] J. T. Howell 1931-7-15
Ricciaceae FH: 00510385 Riccia sp. Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11
FH: 00510419 Riccia trichocarpa M. Howe Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1931-11-14
Rosaceae A: 01587563 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Cañada [Cañon?] del Puerta Zuela, Santa Cr... J. T. Howell 6218 1931-4-10
A: 01590320 Physocarpus capitatus (Pursh) Kuntze Canada: British Columbia Vancouver Island: Near Courtney J. T. Howell 7553 1931-7-28
A: 01559618 Rosa nutkana C. Presl Canada: British Columbia Vancouver Island: Campbell River J. T. Howell 7729 1931-8-9
A: 01559633 Rosa nutkana C. Presl Canada: British Columbia Vancouver Island: Campbell River J. T. Howell 7728 1931-8-9
A: 01602086 Rosa sp. Canada: British Columbia Fraser River Valley at Ft. Hope. J. T. Howell 7764 1931-8-14
A: 01601531 Rosa woodsii ultramontana (S. Watson) Jepson Canada: British Columbia Ashcroft. J. T. Howell 7801 1931-8-15
Rubiaceae GH: 00385871 Galium bolanderi A. Gray USA: California Pope Creek Canyon, 8.5 miles from Monticello... J. T. Howell 6135 1931-4-3
GH: 00385775 Galium californicum Hooker & Arnott USA: California Pelican Bay, Santa Cruz I. J. T. Howell 6406 1931-4-15
GH: 00385786 Galium californicum Hooker & Arnott USA: California Santa Barbara: Mission Ridge J. T. Howell 6544 1931-5-25
GH: 00417000 Galium gabrielense (Munz) I. M. Johnston USA: California Pt. Mugu J. T. Howell 5176 1931-5-19
GH: 00385871 Galium pubens A. Gray USA: California Pope Creek Canyon, 8.5 miles from Monticello... J. T. Howell 6135 1931-4-3
Saxifragaceae GH: 00363707 Jepsonia heterandra Eastwood USA: California Merced River Canyon near Bagby J. T. Howell 8151 1931-10-12
Solanaceae GH: 00813363 Lycium californicum Nuttall ex A. Gray Mexico: South end of Guadalupe Island, Lower Califor... J. T. Howell 8194 1931-11-16
A: 00813368 Lycium californicum Nuttall ex A. Gray Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 8194 1931-11-16
GH: 00813478 Lycium richii hassei Johnston Mexico: Baja California Norte Rock slope J. T. Howell 8205 1931-11-18
GH: 00244976 Solanum umbelliferum Eschscholtz USA: California Stone Canyon J. T. Howell 5951 1931-3-22
GH: 00310498 Solanum umbelliferum Eschscholtz USA: California [data not captured] J. T. Howell 8060 1931-9-7
Sphaerophoraceae FH: 00479007 Sphaerophorus globosus (Hudson) Vainio Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 1931-11-15
Sphagnaceae FH: 00922592 Sphagnum girgensohnii Russow USA: Washington [data not captured] J. T. Howell 1931-7-15
Thuidiaceae FH: 00538470 Claopodium crispifolium (Hooker) Renauld & Cardot USA: Oregon [data not captured] J. T. Howell 1931-7-10
Usneaceae FH: 00476819 Ramalina farinacea (Linnaeus) Acharius Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 32 1931-11-14
