Harvard University Herbaria & Libraries

Index of Botanical Specimens

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Aceraceae
A: 01870876 Acer glabrum Torrey USA: Nevada higher slopes of Cave Creek Canyon, two mile... H. L. Mason 4812 1928-5-26

GH: 01870886 Acer glabrum Torrey USA: Nevada higher slopes of Cave Creek Canyon, two mile... H. L. Mason 4812 1928-5-26

Adiantaceae
GH: 00518244 Myriopteris peninsularis insularis (Weatherby) Grusz & Windham Mexico: Colima Revillagigedo Islands, Socorro Island, above... H. L. Mason 1616 1925-5-4

Aneuraceae
FH: 00494816 Aneura latifrons (Lindberg) Stephani USA: California [data not captured] H. L. Mason 2499 1925-11-26

FH: 00494966 Aneura pinguis (Linnaeus) Dumortier USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00494900 Aneura pinnatifida (F. Weber) Dumortier USA: California [data not captured] H. L. Mason 2263 1925-10-25

FH: 00494903 Aneura pinnatifida (F. Weber) Dumortier USA: California [data not captured] H. L. Mason 1933-3-4

Anthocerotaceae
FH: 00508286 Phaeoceros laevis carolinianus (Michaux) Proskauer USA: California [data not captured] H. L. Mason 2514 1925-11-26

Apiaceae
GH: 00424280 Lomatium ciliolatum hooveri Mathias & Constance USA: California 0.5 mile east of Lake County line on William... H. L. Mason 13164a 1947-3-30
GH: 00424320 Oreonana vestita (S. Watson) Jepson USA: California Old Baldy H. L. Mason 3769 1927-6-15
GH: 00424352 Podistera nevadensis (A. Gray) S. Watson USA: California Mount Conness, Sierra Nevada H. L. Mason 11288 1936-7-23
Apocynaceae
GH: 02179292 Apocynum androsaemifolium Linnaeus USA: California Skylone Boulevard, Oakland Hills H. L. Mason 7071 1932-5-6

GH: 02179273 Apocynum androsaemifolium Linnaeus USA: California Hetch Hetchy tracks west of Mather H. L. Mason 643 1923-7-23

GH: 02178189 Apocynum floribundum Greene USA: California Wooden Valley H. L. Mason 12,104 1939-5-18

GH: 02115312 Cycladenia humilis venusta (Eastwood) Woodson ex Munz USA: California Cirque slide south of Baldy, San Gabriel Mts H. L. Mason 3782 1927-6-15

GH: 02380506 Mesechites trifidus Müller Arg. Colombia: Huila About 5 km. north of Villavieja; upper basin... H. L. Mason 13833 1949-2-8

Aristolochiaceae
GH: 01682394 Asarum lemmonii S. Watson USA: California [data not captured] H. L. Mason 11132 1936-5-15

GH: 01682390 Asarum lemmonii S. Watson USA: California [data not captured] H. L. Mason 5705 1930-7

Asclepiadaceae
GH: 01082725 Asclepias vestita Hooker & Arnott USA: California Yucca Grove, Antelope Valley H. L. Mason 8038 1934-3-30

Asteraceae
GH: 00007313 Ageratina ciliata (Lessing) King & H. Robinson Mexico: Colima Socorro Island, Revillagigedo Islands. H. L. Mason 1666 1925-5-8

GH: 01924858 Ageratina occidentalis (Hooker) R. M. King & H. Robinson USA: California West side of Lake Tahoe above Emerald Bay, f... H. L. Mason 5464 1929-10-4

GH: 00007313 Ageratina pacifica (B. L. Robinson ex I. M. Johnston) King & H. Robinson Mexico: Colima Socorro Island, Revillagigedo Islands. H. L. Mason 1666 1925-5-8

GH: 02141552 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] H. L. Mason 2155 1925-7-10

GH: 02141537 Agoseris heterophylla (Nuttall) Greene USA: California [data not captured] H. L. Mason 6980 1932-4-24

GH: 02141651 Agoseris heterophylla cryptopleura (Nuttall) Greene USA: California [data not captured] H. L. Mason 11022 1936-3-21

GH: 02141646 Agoseris heterophylla cryptopleura (Nuttall) Greene USA: California [data not captured] H. L. Mason 4503 1928-5-4

GH: 02141644 Agoseris heterophylla cryptopleura (Nuttall) Greene USA: California [data not captured] H. L. Mason 7000 1932-4-25

GH: 02141888 Anisocoma acaulis Torrey & A. Gray USA: California [data not captured] H. L. Mason 3034 1926-4-27

GH: 02141883 Anisocoma acaulis Torrey & A. Gray USA: California [data not captured] H. L. Mason 5579 1930-4-20

GH: 02141881 Anisocoma acaulis Torrey & A. Gray USA: California [data not captured] H. L. Mason 6897 1932-4-2

GH: 01234204 Artemisia norvegica saxatilis Hall & Clements USA: Alaska Nome Census Area: Rocky Point, Norton Sound H. L. Mason 1931-7-17

GH: 01234633 Artemisia tilesii Ledebour USA: Alaska Bethel Census Area: St. Matthew Island H. L. Mason 1931-9-1

GH: 00414797 Blennosperma nanum (Hooker) S. F. Blake USA: California Fields south of Angel's Camp H. L. Mason 11052 1936-4-10
GH: 00414802 Blennosperma nanum (Hooker) S. F. Blake USA: California Wooded hills just south of Nortonville H. L. Mason 5045 1929-3-15
GH: 00414797 Blennosperma sp. USA: California Fields south of Angel's Camp H. L. Mason 11052 1936-4-10
GH: 00414802 Blennosperma sp. USA: California Wooded hills just south of Nortonville H. L. Mason 5045 1929-3-15
GH: 00386519 Brickellia californica (Torrey & A. Gray) A. Gray USA: California Canyon back of Prisoners harbor. Santa Cruz ... H. L. Mason 4083 1927-9-23

GH: 00386520 Brickellia californica (Torrey & A. Gray) A. Gray USA: California Carmel River, 10 miles above Carmel Mission H. L. Mason 4988 1928-10-3

GH: 00386521 Brickellia californica (Torrey & A. Gray) A. Gray USA: California Banks of San Antonio River H. L. Mason 5770 1930-10-25

GH: 00004444 Brickellia peninsularis amphithalassa B. L. Robinson Mexico: Colima Clarion Island, Revillagigedo Islands H. L. Mason 1555 1925-4-26

A: 00004445 Brickellia peninsularis amphithalassa B. L. Robinson Mexico: Colima Clarion Island, Revillagigedo Islands H. L. Mason 1555 1925-4-26

GH: 00414782 Chaenactis glabriuscula orcuttiana (Greene) H. M. Hall USA: California Five miles south of Laguna H. L. Mason 2914 1926-4-25
GH: 00387173 Corethrogyne californica de Candolle USA: California Hunter's Point H. L. Mason 4365 1928-4-25

GH: 00387065 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California Niles Canyon H. L. Mason 3252 1926-5-26

GH: 00387173 Corethrogyne filaginifolia californica (de Candolle) Saroyan USA: California Hunter's Point H. L. Mason 4365 1928-4-25

GH: 02142327 Crepis acuminata Nuttall USA: Nevada [data not captured] H. L. Mason 4821 1928-5-27

GH: 02142525 Crepis capillaris (Linnaeus) Wallroth USA: California [data not captured] H. L. Mason 5398 1929-8-24

GH: 02142575 Crepis capillaris (Linnaeus) Wallroth USA: Washington [data not captured] H. L. Mason 3954 1927-7-14

GH: 02142637 Crepis modocensis Greene USA: Nevada [data not captured] H. L. Mason 4752 1928-5-25

GH: 02203782 Dieteria canescens leucanthemifolia (Greene) D. R. Morgan & R. L. Hartman USA: Nevada [data not captured] H. L. Mason 12350 1940-7-29

GH: 00387213 Eastwoodia elegans Brandegee USA: California head of Cuyama Valley, fourteen miles west o... H. L. Mason 12490 1941-7-3

GH: 00387216 Eastwoodia elegans Brandegee USA: California head of Cuyama Valley, fourteen miles west o... H. L. Mason 12490 1941-7-3

GH: 00387385 Ericameria ericoides (Lessing) Nuttall ex Jepson USA: California Prunedale, nine miles north of Salinas H. L. Mason 11525 1936-9-13

GH: 00387386 Ericameria ericoides (Lessing) Nuttall ex Jepson USA: California Merced Lake and San Francisco sand dunes H. L. Mason 1119 1924-10-19

GH: 00387403 Ericameria ericoides (Lessing) Nuttall ex Jepson USA: California Prunedale, nine miles north of Salinas H. L. Mason 11525 1936-9-13

GH: 00387415 Ericameria ericoides (Lessing) Nuttall ex Jepson USA: California Ten miles up Carmel River H. L. Mason 4993a 1928-10-3

GH: 02207914 Erigeron breweri A. Gray USA: Nevada [data not captured] H. L. Mason 12347 1940-7-29

GH: 02207891 Erigeron breweri A. Gray USA: California [data not captured] H. L. Mason 11201 1936-7-11

GH: 02206538 Erigeron concinnus Torrey USA: Nevada [data not captured] H. L. Mason 12359 1940-8-3

GH: 00006815 Erigeron crenatus Eastwood Mexico: Colima San Benedicto Island, Revillagigedo Islands H. L. Mason 1683 1925-5-11

GH: 02353591 Erigeron inornatus (A. Gray) A. Gray USA: Nevada [data not captured] H. L. Mason 12217 1939-8-6

GH: 02353696 Erigeron linearis (Hooker) Piper USA: California [data not captured] H. L. Mason 11372 1936-7-27

GH: 02352329 Erigeron peregrinus (Banks ex Pursh) Greene USA: Nevada [data not captured] H. L. Mason 12380 1940-8-6

GH: 02351203 Erigeron pygmaeus Greene USA: California [data not captured] H. L. Mason 11284 1936-7-23

GH: 00414869 Eriophyllum confertiflorum (de Candolle) A. Gray USA: California Yosemite National Park: Yosemite Falls Trail... H. L. Mason 11136 1936-7-6
GH: 00414901 Eriophyllum confertiflorum (de Candolle) A. Gray USA: California La Purrissima Ridge H. L. Mason 8044 1934-3-31
GH: 00427089 Eriophyllum jepsonii Greene USA: California Patterson Road, twenty miles from mouth of A... H. L. Mason 10008 1935-5-8
GH: 00427091 Eriophyllum jepsonii Greene USA: California Patterson Road, twenty miles from mouth of A... H. L. Mason 10008 1935-5-8
GH: 00427109 Eriophyllum lanatum (Pursh) C. N. Forbes USA: California Bartlet Mountain Road H. L. Mason 2567 1925-12-31
GH: 00427010 Eriophyllum lanatum grandiflorum (A. Gray) Jepson USA: California Mokulmne River Bridge, Comanche H. L. Mason 6976 1932-4-24
GH: 00427054 Eriophyllum lanatum arachnoideum (Fischer, C. A. Meyer & Avé-Lallemant) Jepson USA: California Jensen Ranch, at head of Dohrman Creek, four... H. L. Mason 8096 1934-4-28
GH: 00427136 Eriophyllum lanatum integrifolium (Hooker) Smiley USA: California Yosemite National Park: south of Porcupine F... H. L. Mason 335 1922-7-27
GH: 00007313 Eupatorium pacificum B. L. Robinson Mexico: Colima Socorro Island, Revillagigedo Islands. H. L. Mason 1666 1925-5-8

GH: 01831086 Glyptopleura setulosa A. Gray USA: California [data not captured] H. L. Mason 8032 1934-3-30

GH: 01831097 Hedypnois cretica (Linnaeus) Dumont Courset USA: California [data not captured] H. L. Mason 4333 1928-4-13

GH: 01831268 Hieracium albiflorum Hooker USA: Washington [data not captured] H. L. Mason 3817 1927-7-7

GH: 01831308 Hieracium argutum Nuttall USA: California [data not captured] H. L. Mason 5752 1930-10-25

GH: 01831784 Hieracium gracile detonsum (A. Gray) A. Gray USA: California [data not captured] H. L. Mason 707 1923-8-3

GH: 01833380 Hypochaeris glabra Linnaeus USA: California San Francisco: [data not captured] H. L. Mason 2874a 1926-4-18

GH: 01834737 Lactuca saligna Linnaeus USA: California [data not captured] H. L. Mason 4113 1927-10-4

GH: 01834774 Lactuca sativa Linnaeus USA: California [data not captured] H. L. Mason 3642 1926-10-12

GH: 01835042 Lactuca tatarica (Linnaeus) C. A. Meyer USA: Montana [data not captured] H. L. Mason 3509 1926-7-11

GH: 00427297 Lembertia congdonii (A. Gray) Greene USA: California Five miles east of Lost Hills H. L. Mason 6912 1932-4-3
GH: 00427298 Lembertia congdonii (A. Gray) Greene USA: California Five miles west of Bakersfield H. L. Mason 9315 1835-4-30
GH: 01835546 Malacothrix clevelandii A. Gray USA: California [data not captured] H. L. Mason 3748 1927-6-11

GH: 01835544 Malacothrix clevelandii A. Gray USA: California [data not captured] H. L. Mason 3171 1926-5-1

GH: 01835615 Malacothrix floccifera (de Candolle) S. F. Blake USA: California Santa Cruz: [data not captured] H. L. Mason 4001 1927-7-31

GH: 01835613 Malacothrix floccifera (de Candolle) S. F. Blake USA: California [data not captured] H. L. Mason 4906 1928-7-14

GH: 01835610 Malacothrix floccifera (de Candolle) S. F. Blake USA: California [data not captured] H. L. Mason 8312 1935-5-9

GH: 01835642 Malacothrix glabrata (A. Gray ex D. C. Eaton) A. Gray USA: California [data not captured] H. L. Mason 3006 1926-4-26

GH: 01835685 Malacothrix incana succulenta (Elmer) E. W. Williams USA: California [data not captured] H. L. Mason 12475 1941-7-3

GH: 00443003 Malacothrix saxatilis arachnoidea (E. A. McGregor) E. W. Williams USA: California Carmel River, four miles above Carmel Missio... H. L. Mason 4986 1928-10-3

GH: 01835721 Malacothrix saxatilis commutata (Torr. & A. Gray) R. S. Ferris USA: California [data not captured] H. L. Mason 5768 1930-10-25

GH: 01835728 Malacothrix saxatilis implicata (Eastwood) H. M. Hall USA: California [data not captured] H. L. Mason 4088 1927-9-24

GH: 01835777 Malacothrix sonchoides (Nuttall) Torrey & A. Gray USA: California [data not captured] H. L. Mason 3072 1926-4-27

GH: 00414152 Micropus amphibolus A. Gray USA: California Bartlett Mountain road, four miles above Luc... H. L. Mason 11098 1936-5-2
GH: 00414153 Micropus amphibolus A. Gray USA: California Jensen's Ranch, head of Dohrman Creek, four ... H. L. Mason 8081 1934-4-28
GH: 01835898 Microseris douglasii (de Candolle) Schultz Bipontinus USA: California [data not captured] H. L. Mason 5142 1929-3-31

GH: 01835893 Microseris douglasii (de Candolle) Schultz Bipontinus USA: California [data not captured] H. L. Mason 6832 1932-3-19

GH: 02593059 Microseris linearifolia (de Candolle) Schultz Bipontinus USA: California Rancho Repose, Cedar Mountain, Mount Hamilto... H. L. Mason 2824 1926-4-11

GH: 00427298 Monolopia congdonii (A. Gray) B. G. Baldwin USA: California Five miles west of Bakersfield H. L. Mason 9315 1835-4-30
GH: 00427297 Monolopia congdonii (A. Gray) B. G. Baldwin USA: California Five miles east of Lost Hills H. L. Mason 6912 1932-4-3
GH: 00010526 Monolopia stricta Crum USA: California Two miles west of Lost Hills H. L. Mason 9314 1935-5-2

GH: 00257518 Perityle emoryi Torrey Mexico: Baja California Norte Guadalpe Island H. L. Mason 1502 1925-4-19

GH: 00257518 Perityle grayi Rose Mexico: Baja California Norte Guadalpe Island H. L. Mason 1502 1925-4-19

GH: 00427714 Senecio flaccidus monoensis (Greene) B. L. Turner & T. M. Barkley USA: California Box S. Springs H. L. Mason 3088 1925-4-25
GH: 00427768 Senecio flaccidus douglasii (de Candolle) B. L. Turner & T. M. Barkley USA: California Along Carmel River, ten miles east of Carmel... H. L. Mason 4991 1928-10-3
GH: 00348375 Stylocline masonii Morefield USA: California west of Bakersfield H. L. Mason 8241 1935-3-30

GH: 00348375 Stylocline micropoides A. Gray USA: California west of Bakersfield H. L. Mason 8241 1935-3-30

GH: 00414712 Wyethia elata H. M. Hall USA: California four miles south of Miami Ranger Station H. L. Mason 11952 1938-7-16
Aytoniaceae
FH: 00495165 Asterella bolanderi (Austin) Underwood USA: California [data not captured] H. L. Mason 2531 1925-12-20

FH: 00497686 Fimbraria bolanderi Austin USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00497687 Fimbraria bolanderi Austin USA: California [data not captured] H. L. Mason 2531 1925-12-20

FH: 00497705 Fimbraria californica Hampe & Austin USA: California [data not captured] H. L. Mason 2545 1925-12-30

FH: 00497706 Fimbraria californica Hampe & Austin USA: California [data not captured] H. L. Mason 2258 1925-10-25

Betulaceae
A: 00401330 Alnus incana tenuifolia (Nuttall) Breitung USA: California north side of Luther Pass, one mile west of ... H. L. Mason 12172 1939-7-18

GH: 02198797 Alnus incana tenuifolia (Nuttall) Breitung USA: California north side of Luther Pass, one mile west of ... H. L. Mason 12172 1939-7-18

A: 00401330 Alnus tenuifolia Nuttall USA: California north side of Luther Pass, one mile west of ... H. L. Mason 12172 1939-7-18

GH: 02195253 Betula glandulosa Michaux USA: Alaska Prince of Wales-Hyder Census Area: Dolgoi Is... H. L. Mason 6015 1931-5-24

GH: 02195610 Betula nana exilis (V. N. Sukacev) Hultén USA: Alaska Nome Census Area: Cascade Creek, Norton Soun... H. L. Mason 1931-6-9

GH: 02195597 Betula nana exilis (V. N. Sukacev) Hultén USA: Alaska Nome Census Area: St. Michael, Norton Sound. H. L. Mason 6046 1931-6-8

GH: 02194391 Betula occidentalis Hooker USA: California Shasta River, just north of Weed H. L. Mason 14580 1953-7-30

Bignoniaceae
GH: 02054930 Chilopsis linearis arcuata (Fosberg) Henrickson USA: Arizona north of Tuscon H. L. Mason 5372 1929-6-7

GH: 02054931 Chilopsis linearis arcuata (Fosberg) Henrickson USA: Arizona Kirkland Creek, twenty-five miles south of P... H. L. Mason 5384 1929-6-7

Bombacaceae
GH: 00422602 Fremontodendron californicum (Torrey) Coville USA: California Four miles North of Knoxville Mines H. L. Mason 10009 1935-5-30
A: 00422632 Fremontodendron californicum (Torrey) Coville USA: California Four miles north of Knoxville Mines H. L. Mason 10009 1935-5-30
Boraginaceae
GH: 00424612 Amsinckia douglasiana de Candolle USA: California Road from Mountain House to Midway, west of ... H. L. Mason 6815 1932-3-19

GH: 01956429 Amsinckia intermedia Fischer & C. A. Meyer USA: California Road from Mountain House to Midway, west of ... H. L. Mason 6813 1932-3-19

GH: 01956510 Amsinckia intermedia Fischer & C. A. Meyer USA: California Road from Mountain House to Midway, west of ... H. L. Mason 6814 1932-3-19

GH: 01957164 Amsinckia tessellata A. Gray USA: Nevada Emmigrant Pass, Tuscarora Mountains H. L. Mason 4625 1928-5-18

GH: 01957165 Amsinckia tessellata A. Gray USA: Nevada about Big Spring near Cave Creek Post Office... H. L. Mason 4750 1928-5-24

GH: 01957257 Amsinckia vernicosa Hooker & Arnott USA: California Hills between Mohave and Lancaster, Mohave D... H. L. Mason 5574 1930-4-20

GH: 00424701 Cryptantha circumscissa (Hooker & Arnott) I. M. Johnston USA: California One mile east of Lancaster, Mojave Desert H. L. Mason 6868 1932-4-1

GH: 00420039 Cryptantha holoptera (A. Gray) J. F. Macbride USA: California Hidden Springs Canyon, Coachella Mts. H. L. Mason 4232 1928-3-10

GH: 02027768 Hackelia patens (Nuttall) I. M. Johnston USA: Wyoming Crescent Hill, Yellowstone National Park. H. L. Mason 3470 1926-6-29

GH: 00420039 Johnstonella holoptera (A. Gray) Hasenstab & M.G. Simpson USA: California Hidden Springs Canyon, Coachella Mts. H. L. Mason 4232 1928-3-10

GH: 02058585 Mertensia maritima (Linnaeus) Gray USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-12

GH: 01872846 Myosotis alpestris asiatica Vestergren ex Hultén USA: Wyoming Summit of Mount Washburn, Yellowstone Nation... H. L. Mason 3406 1926-6-26

GH: 01872847 Myosotis alpestris asiatica Vestergren ex Hultén USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3466 1926-6-29

GH: 02059444 Myosotis alpestris asiatica Vestergren ex Hultén USA: Alaska Cape Lisburne. H. L. Mason 1931-8-13

GH: 00420066 Plagiobothrys chorisiana hickmanii (Greene) Jepson USA: California Zayante Creek, Mount Hermon, Santa Cruz Moun... H. L. Mason 4013 1927-7-31

GH: 00420030 Plagiobothrys chorisianus (Chamisso) I. M. Johnston USA: California Between Pescadero Creek and La Honda H. L. Mason 3692 1927-4-23

GH: 00420066 Plagiobothrys chorisianus hickmanii (Greene) I. M. Johnstone USA: California Zayante Creek, Mount Hermon, Santa Cruz Moun... H. L. Mason 4013 1927-7-31

GH: 00420229 Plagiobothrys strictus (Greene) I. M. Johnston USA: California Calistoga: [No Additional Data] H. L. Mason 2745 1926-3-20

GH: 02144000 Tiquilia canescens pulchella (I. M. Johnston) A. T. Richardson USA: Arizona Ten miles north of Gila River H. L. Mason 14223 1952-4-8

GH: 02144231 Tiquilia palmeri (A. Gray) A. T. Richardson USA: Arizona Ten miles north of Gila River H. L. Mason 14221 1952-4-8

Brassicaceae
GH: 00378695 Arabis blepharophylla Hooker & Arnott USA: California Inverness Ridge, Pt. Reyes H. L. Mason 4157 1928-2-18

GH: 00378696 Arabis blepharophylla Hooker & Arnott USA: California San Francisco: Bernal heights H. L. Mason 1271 1925-3-1

GH: 00378801 Arabis lemmonii depauperata (A. Nelson & P. B. Kennedy) Rollins USA: California Terminal moraine of Conness Glacier, Sierra ... H. L. Mason 11426 1936-7-29

GH: 00378802 Arabis lemmonii depauperata (A. Nelson & P. B. Kennedy) Rollins USA: California Dana Plateau, Sierra Nevada H. L. Mason 11401A 1936-7-28

GH: 00378832 Arabis lyallii nubigena (J. F. Macbride & Payson) Rollins USA: California White Mountain, Conness Range, Sierra Nevada H. L. Mason 11351 1936-7-24

GH: 00378833 Arabis lyallii nubigena (J. F. Macbride & Payson) Rollins USA: California Dana Plateau, Sierra Nevada H. L. Mason 11416 1936-7-28

GH: 01181550 Boechera breweri (S. Watson) Al-Shehbaz USA: California Summit of Mt. Diablo H. L. Mason 2706 1926-3-7

GH: 01181560 Boechera breweri (S. Watson) Al-Shehbaz USA: California Pinnacles H. L. Mason 5524 1930-3-30

GH: 00378801 Boechera depauperata (A. Nelson & P. B. Kennedy) Windham & Al-Shehbaz USA: California Terminal moraine of Conness Glacier, Sierra ... H. L. Mason 11426 1936-7-29

GH: 00378802 Boechera depauperata (A. Nelson & P. B. Kennedy) Windham & Al-Shehbaz USA: California Dana Plateau, Sierra Nevada H. L. Mason 11401A 1936-7-28

GH: 00932829 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: California White Mountain, Conness Range, Sierra Nevada H. L. Mason 11323 1936-7-23

GH: 00932840 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: California Ragged Peak, Sierra Nevada H. L. Mason 11264 1936-7-22

GH: 00932845 Boechera howellii (S. Watson) Windham & Al-Shehbaz USA: California Terminal moraine of Conness Glacier, Sierra ... H. L. Mason 11425 1936-7-29

GH: 00378753 Boechera lemmonii (S. Watson) W. A. Weber USA: California White Mountains, Conness Range, Sierra Nevad... H. L. Mason 11326 1936-7-24

GH: 00946254 Boechera lemmonii drepanoloba (Greene) Dorn USA: California Mount Conness, Sierra Nevada H. L. Mason 11297 1936-7-23

GH: 00946255 Boechera lemmonii drepanoloba (Greene) Dorn USA: California White Mountain, Conness Range, Sierra Nevada H. L. Mason 11348 1936-7-24

GH: 00378832 Boechera paupercula (Greene) Windham & Al-Shehbaz USA: California White Mountain, Conness Range, Sierra Nevada H. L. Mason 11351 1936-7-24

GH: 00378833 Boechera paupercula (Greene) Windham & Al-Shehbaz USA: California Dana Plateau, Sierra Nevada H. L. Mason 11416 1936-7-28

GH: 00378968 Cardamine californica integrifolia (Nuttall) Rollins USA: California Hills north of San Rafael H. L. Mason 1180 1925-1-18

GH: 00999870 Cardamine purpurea Chamisso & Schlechtendal USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-10

GH: 00379093 Caulanthus coulteri lemmonii (S. Watson) Munz USA: California Temblor Range east of Cholame H. L. Mason 14202 1952-4-6

GH: 00379093 Caulanthus lemmonii S. Watson USA: California Temblor Range east of Cholame H. L. Mason 14202 1952-4-6

GH: 01087855 Cochlearia officinalis arctica (D. F. K. Schlechtendal ex de Candolle) Gelert USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6071 1931-6-26

GH: 00379526 Erysimum capitatum angustatum (Greene) Rossbach USA: California East of Antioch along the San Joaquin River H. L. Mason 7189 1933-4-9

GH: 01540361 Guillenia flavescens (Hooker) Greene USA: California [data not captured] H. L. Mason 10005 1935-3-24

GH: 01540816 Idahoa scapigera (Hooker) A. Nelson & J. F. Macbride USA: California [data not captured] H. L. Mason 7209 1933-4-21

GH: 00379816 Parrya menziesii glabra Jepson USA: California Mill Creek, Warner Mountains H. L. Mason 14720 1957-7-6

GH: 01573040 Parrya nudicaulis septentrionalis Hultén USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-10

GH: 01573059 Parrya nudicaulis septentrionalis Hultén USA: Alaska Cape Lisburne. H. L. Mason 1931-8-13

GH: 00379816 Phoenicaulis cheiranthoides glabra (Jepson) Abrams USA: California Mill Creek, Warner Mountains H. L. Mason 14720 1957-7-6

GH: 00379858 Stanfordia californica S. Watson USA: California One mile east of Lost Hills, northwest Kern ... H. L. Mason 10001 1935-5-2

GH: 00379988 Streptanthus breweri A. Gray USA: California between Fouts Springs and Red Bridge Public ... H. L. Mason 14300 1952-6-19

GH: 00422129 Streptanthus glandulosus Hooker USA: California Bartlett Mountain, 4 miles from Lucerne H. L. Mason 11747 1938-5-1

GH: 00422200 Streptanthus hispidus A. Gray USA: California trail between Juniper Camp and Deer Flat, Mo... H. L. Mason 11751 1938-5-3

GH: 00422214 Streptanthus insignis Jepson USA: California San Carlos Canyon H. L. Mason 14278 1952-4-27

GH: 00422241 Streptanthus polygaloides A. Gray USA: California Summit of road between Coulterville and Bagb... H. L. Mason 11118 1936-5-15

GH: 00422251 Streptanthus polygaloides A. Gray USA: California in canyon of north fork of the Yuba River, e... H. L. Mason 14899 1959-5-24

GH: 00422415 Streptanthus vimineus (Greene) Al-Shehbaz & D.W.Taylor USA: California Serpentine ridge south of Lakeport H. L. Mason 12309 1940-5-22

GH: 00422484 Tropidocarpum capparideum Greene USA: California Road from Mountain House to Midway, west of ... H. L. Mason 6818 1932-3-19

Bromeliaceae
GH: 01817492 Tillandsia eistetteri Ehlers Mexico: Nayarit Tres Marias Islands, arroya Hondo H. L. Mason 1723 1925-5-17

GH: 01817753 Tillandsia intermedia Mez Mexico: Nayarit Tres Marias Islands, Maria Madre, Arroyo Hon... H. L. Mason 1765 1925-5-18

GH: 02548942 Tillandsia recurvata (Linnaeus) Linnaeus Colombia: Boyacá Cordillera Oriental, 7 km. southwest of Leiv... H. L. Mason 13707 1949-1-19

Burseraceae
GH: 00044397 Bursera nesopola I. M. Johnston Mexico: Colima Revillagigedo Islands, Benner's Cove, Socorr... H. L. Mason 1609 1925-5-3

Caesalpiniaceae
GH: 01676186 Cercis canadensis Linnaeus USA: California Dugars H. L. Mason 4498 1928-5-4

GH: 01676189 Cercis canadensis Linnaeus USA: California Middle Tule River, 3 mi. above Springville H. L. Mason 5078 1929-3-23

Calypogeiaceae
FH: 00496055 Calypogeia trichomanis (Linnaeus) Corda USA: California [data not captured] H. L. Mason 2255 1925-10-25

Campanulaceae
GH: 00420320 Campanula exigua Rattan USA: California Red Mountains, Arroyo del Puerto, Mount Hami... H. L. Mason 8310 1935-5-9

GH: 01795748 Campanula prenanthoides Durand USA: California Big Oak Flat Road to Tuolumne Grove H. L. Mason 2218 1925-8-11

GH: 01795750 Campanula prenanthoides Durand USA: California west end of Big Basin H. L. Mason 3977 1927-7-27

Caprifoliaceae
A: 00422797 Lonicera conjugialis Kellogg USA: California "Research Reserve," Hetch Hetchy Trail west ... H. L. Mason 11160 1936-7-6

Caryophyllaceae
GH: 01744656 Honckenya peploides (Linnaeus) Ehrhart USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-12

Celastraceae
A: 01854120 Canotia holacantha Torrey USA: Arizona 23 miles northeast of Kingman H. L. Mason 5364 1929-6-2

GH: 00378519 Paxistima myrsinites (Pursh) Rafinesque USA: California hills along Shasta Creek Canyon H. L. Mason 5329 1929-5-18

Cephaloziaceae
FH: 00496155 Cephalozia bicuspidata (Linnaeus) Dumortier USA: Washington [data not captured] H. L. Mason 3931 1927-7-8

FH: 00496159 Cephalozia bicuspidata (Linnaeus) Dumortier USA: Washington [data not captured] H. L. Mason 3924 1927-7-9

FH: 00496523 Cephalozia lunulifolia (Dumortier) Dumortier USA: California [data not captured] H. L. Mason 1927-4-17

Cephaloziellaceae
FH: 00496678 Cephaloziella divaricata (Smith) Warnstorf USA: California [data not captured] H. L. Mason 2509 1925-11-26

FH: 00496692 Cephaloziella divaricata (Smith) Warnstorf USA: California [data not captured] H. L. Mason 2532 1925-12-20

FH: 00496693 Cephaloziella divaricata (Smith) Warnstorf USA: California [data not captured] H. L. Mason 2509 1925-11-26

FH: 00496694 Cephaloziella divaricata (Smith) Warnstorf USA: Washington [data not captured] H. L. Mason 3933 1927-7-8

FH: 00496695 Cephaloziella divaricata (Smith) Warnstorf USA: California [data not captured] H. L. Mason 2547 1925-12-30

FH: 00496772 Cephaloziella turneri (Hooker) Müller Freib. USA: California [data not captured] H. L. Mason 2513 1925-11-26

FH: 00496775 Cephaloziella turneri (Hooker) Müller Freib. USA: California [data not captured] H. L. Mason 2528 1925-12-20

FH: 00496778 Cephaloziella turneri (Hooker) Müller Freib. USA: California [data not captured] H. L. Mason 2528 1925-12-20

Ceratophyllaceae
GH: 02073217 Ceratophyllum demersum Linnaeus USA: California [data not captured] H. L. Mason 11851 1938-6-12

Cleomaceae
GH: 00378528 Cleomella obtusifolia Torrey & Fremont USA: California West side of Searle Lake, Mojave Desert H. L. Mason 8234 1935-3-29

Conocephalaceae
FH: 00497395 Conocephalum conicum (Linnaeus) Underwood USA: California [data not captured] H. L. Mason 2245 1925-10-25

Convolvulaceae
GH: 00872742 Dichondra donelliana Tharp & M. C. Johnston USA: California west side of Bolinas Ridge H. L. Mason 5217 1927-4-17

GH: 00872743 Dichondra donelliana Tharp & M. C. Johnston USA: California San Bruno Mountains H. L. Mason 4156 1928-2-22

GH: 00872742 Dichondra repens J. R. Forster & G. Forster USA: California west side of Bolinas Ridge H. L. Mason 5217 1927-4-17

GH: 00872743 Dichondra repens J. R. Forster & G. Forster USA: California San Bruno Mountains H. L. Mason 4156 1928-2-22

GH: 00054502 Ipomoea halierca I. M. Johnston Mexico: Colima Revillagigedo Islands, Clarion Island, above... H. L. Mason 1553 1925-4-26

Cornaceae
A: 00385467 Cornus sessilis Torrey USA: California South fork of the Mokelumne River, about thr... H. L. Mason 10984 1935-3-14

GH: 00385477 Cornus sessilis Torrey USA: California South fork of the Mokelumne River, about thr... H. L. Mason 10984 1935-3-14

GH: 02019894 Cornus suecica Linnaeus USA: Alaska Nome Census Area: Rocky Point, Norton Sound. H. L. Mason 1931-7-17

Crassulaceae
GH: 01871801 Crassula aquatica (Linnaeus) Schönland USA: California Herbarium of the University of California H. L. Mason 5196 1929-4-7

GH: 01871832 Crassula connata A. Berger USA: California Corte Madera Ridge H. L. Mason 1926-3-6

GH: 01987512 Dudleya acuminata Rose Mexico: Baja California Norte San Quintin Bay H. L. Mason 2057 1925-6-7

GH: 01987513 Dudleya albiflora Rose Mexico: Magdalena Bay, Lower California H. L. Mason 1898 1925-5-29

GH: 01987515 Dudleya anthonyi Rose Mexico: San Martin Island H. L. Mason 2068 1925-6-8

GH: 01987388 Dudleya cespitosa (Haworth) Britton & Rose USA: California Jenner H. L. Mason 4882 1928-7-10

GH: 01987526 Dudleya cultrata Rose Mexico: San Martin Island H. L. Mason 2076 1925

GH: 01987415 Dudleya cymosa paniculata (Jepson) K. M. Nakai USA: California Niles Canyon H. L. Mason 3251 1926-6-26

GH: 01987474 Dudleya lanceolata (Nuttall) Britton & Rose USA: California Harris Grade H. L. Mason 384 1923-6-15

GH: 00376752 Rhodiola integrifolia Rafinesque USA: California Hill slope back of Emerald Bay, above falls H. L. Mason 3313a 1926-5-30

GH: 00376753 Rhodiola integrifolia Rafinesque USA: California Tioga Mines H. L. Mason 4875 1928-7-5

GH: 01991244 Sedella congonii (Eastwood) Britton & Rose USA: California near Auckland Ranch on General Grant Nationa... H. L. Mason 11820 1938-5-10

GH: 01991246 Sedella congonii (Eastwood) Britton & Rose USA: California Rocky Hill, east of Exeter H. L. Mason 11703 1938-4-14

GH: 01991205 Sedella pentandra H. Sharsmith USA: California Little Stony Creek road 0.25 miles above jun... H. L. Mason 1953-5-4

GH: 01991207 Sedella pentandra H. Sharsmith USA: California North Twin Peak (Diablo Range), North Fork o... H. L. Mason 12278 1940-5-5

GH: 01991218 Sedella pumila Britton & Rose USA: California three miles above Valley Spring H. L. Mason 5200 1929-4-7

GH: 01991219 Sedella pumila Britton & Rose USA: California Greene Valley, four miles north of Shingle S... H. L. Mason 4506 1928-5-4

GH: 01991239 Sedella pumila Britton & Rose USA: California three miles south of Chico near junction of ... H. L. Mason 12409 1941-4-6

GH: 01990006 Sedum rosea (Linnaeus) Scopoli USA: Alaska St. Lawrence Island, Bering Sea. Sevoonga. H. L. Mason 6074 1931-6-26

GH: 00376752 Sedum rosea integrifolium (Rafinesque) Hultén USA: California Hill slope back of Emerald Bay, above falls H. L. Mason 3313a 1926-5-30

GH: 00376753 Sedum rosea integrifolium (Rafinesque) Hultén USA: California Tioga Mines H. L. Mason 4875 1928-7-5

Cupressaceae
GH: 00357949 Cupressus goveniana pygmaea Lemmon USA: California White plains three miles east of Mendocino C... H. L. Mason 8147 1934-9-3

GH: 00356067 Cupressus macrocarpa Hartweg USA: California Point Lobos, Monterey County H. L. Mason 10023 1934-10-21

GH: 00357949 Cupressus pygmaea (Lemmon) Sargent USA: California White plains three miles east of Mendocino C... H. L. Mason 8147 1934-9-3

A: 00356121 Cupressus sargentii Jepson USA: California Cedar Mountain, near summit H. L. Mason 1926-4-16

GH: 02107597 Xanthocyparis nootkatensis (D. Don) Farjon & D. K. Harder USA: Washington Mt. Rainier: [data not captured] H. L. Mason 3605 1926-7-31

Cyperaceae
GH: 00424010 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: California base of El Capitan, Yosemite Valley H. L. Mason 11946 1938-7-13

GH: 00424011 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: California Along Merced River, Yosemite Valley H. L. Mason 11215 1936-7-12

GH: 00424012 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: California Dry ridge between Swamp Lake and Miguel Mead... H. L. Mason 11858 1938-7-6

GH: 00424013 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: California Miguel Meadow, west of Hetch Hetchy H. L. Mason 11934 1938-7-11

GH: 00424129 Carex buxbaumii Wahlenberg USA: California South island in Swamp Lake, west of Hetch He... H. L. Mason 11942 1938-7-11

GH: 00424130 Carex buxbaumii Wahlenberg USA: California South island in Swamp Lake, west of Hetch He... H. L. Mason 11915 1938-7-10

GH: 00424010 Carex capillaris Linnaeus USA: California base of El Capitan, Yosemite Valley H. L. Mason 11946 1938-7-13

GH: 00424071 Carex congdonii L. H. Bailey USA: California Macomb Ridge east of Tilden Lake H. L. Mason 12046 1938-7-28

GH: 02395557 Carex cusickii Mackenzie ex Piper & Beattie USA: California [data not captured] H. L. Mason 11923 1938-7-10

GH: 02391692 Carex echinata Murray USA: California [data not captured] H. L. Mason 11922 1938-7-10

GH: 00424084 Carex limosa Linnaeus USA: California South island in Swamp Lake, west of Hetch He... H. L. Mason 11906 1938-7-10

GH: 01775236 Carex vesicaria Linnaeus USA: California [data not captured] H. L. Mason 11889 1938-7-9

GH: 00424386 Eriophorum gracile W. D. J. Koch ex Roth USA: California South island in Swamp Lake, west of Hetch He... H. L. Mason 11913 1938-7-10
Droseraceae
GH: 01145169 Drosera rotundifolia Linnaeus USA: California Fort Bragg. H. L. Mason 5738 1930-8

Elatinaceae
GH: 00067222 Elatine gracilis H. Mason USA: California 0.4 mile south of Little Truckee River bridg... H. L. Mason 14494 1952-8-17

Ericaceae
GH: 00343975 Arbutus menziesii Pursh USA: California Headwaters of Arroyo Seco, Santa Lucia Mount... H. L. Mason 5751 1930-10-25

GH: 00350624 Arctostaphylos andersonii imbricata (Eastwood) J. E. Adams ex McMinn USA: California San Bruno Mountain H. L. Mason 4164 1928-2-22

GH: 00350134 Arctostaphylos canescens Eastwood USA: California near summit of Mountain. Toll House Canyon, ... H. L. Mason 2612 1926-1-2

GH: 00350135 Arctostaphylos canescens Eastwood USA: California West Peak, Mount Tamalpais H. L. Mason 2670 1926-2-28

GH: 00350160 Arctostaphylos columbiana Piper USA: California Trinidad Head H. L. Mason 7104 1932-7-21

GH: 00350161 Arctostaphylos columbiana Piper USA: California Fort Ross H. L. Mason 4290 1928-4-8

GH: 00350222 Arctostaphylos densiflora M. S. Baker USA: California Vine Hill School, twelve miles west of Santa... H. L. Mason 5805 1931-3-7

GH: 00362665 Arctostaphylos diversifolia (Parry) Parry ex A. Gray USA: California Along roadway through Buena Vista Canyon, Sa... H. L. Mason 4098 1927-9-25

GH: 00350294 Arctostaphylos glandulosa Eastwood USA: California vicinity of summit of Figueroa Mountain H. L. Mason 11803 1938-5-8

GH: 00350365 Arctostaphylos glandulosa cushingiana (Eastwood) J. E. Adams ex McMinn USA: California Mount Tamalpais H. L. Mason 1220 1925-2-1

GH: 00350477 Arctostaphylos hookeri G. Don USA: California Del Monte H. L. Mason 570 1923-6-23

GH: 00350624 Arctostaphylos imbricata Eastwood USA: California San Bruno Mountain H. L. Mason 4164 1928-2-22

GH: 00350713 Arctostaphylos myrtifolia Parry USA: California One mile south of Ione H. L. Mason 4468 1928-5-3

GH: 00350825 Arctostaphylos nummularia A. Gray USA: California Pine Barrens at Mendocino City H. L. Mason 7167 1932-8-26

GH: 00350826 Arctostaphylos nummularia A. Gray USA: California Fort Bragg H. L. Mason 4998 1928-10-21

GH: 00362000 Arctostaphylos pechoensis viridissima Eastwood USA: California La Purrissima Ridge, north of Lompoc H. L. Mason 8055 1934-3-31

GH: 00362001 Arctostaphylos pechoensis viridissima Eastwood USA: California Burton Mesa H. L. Mason 11776 1938-5-7

GH: 00362002 Arctostaphylos pechoensis viridissima Eastwood USA: California Burton Mesa H. L. Mason 11776 1938-5-7

A: 00362003 Arctostaphylos pechoensis viridissima Eastwood USA: California vicinity of the summit of Figueroa Mountain H. L. Mason 11803 1938-5-8

GH: 00362035 Arctostaphylos pringlei drupacea Parry USA: California Palomar Mountain H. L. Mason 3165 1926-5-1

GH: 00362109 Arctostaphylos pungens Kunth USA: California Sandstone hills six miles east of Santa Luci... H. L. Mason 5764 1930-10-25

GH: 00362159 Arctostaphylos sensitiva Jepson USA: California hills south of Mount Herman H. L. Mason 3997 1927-7-31

GH: 00362167 Arctostaphylos sensitiva Jepson USA: California Mount Tamalpais H. L. Mason 1219 1925-2-1

GH: 00350432 Arctostaphylos sp. USA: California Burton Mesa, northwest of Lompoc H. L. Mason 11770 1938-5-7

GH: 01117717 Arctostaphylos stanfordiana Parry USA: California Toll House Canyon, Mount St. Helena H. L. Mason 2611 1926-1-2

GH: 01117723 Arctostaphylos stanfordiana Parry USA: California Wooden Valley Grade H. L. Mason 1202 1925-1-22

GH: 01536530 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Oregon just south of Reedsport H. L. Mason 5289 1929-5-11

GH: 01536568 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Washington Hills about Roosevelt Glacier, Mt. Baker H. L. Mason 3881 1927-7-11

GH: 01536607 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Wyoming Near Tower Falls, Yellowstone National Park H. L. Mason 3430 1926-6-27

GH: 00245841 Arctostaphylos virgata Eastwood USA: California Near the summit of road from Inverness to Po... H. L. Mason 2650 1926-2-21

GH: 00362400 Arctostaphylos viscida Parry USA: California one mile south of Ione H. L. Mason 4466 1928-5-3

GH: 01536988 Arctous rubra (Rehder & Wilson) Nakai USA: Alaska Rocky Point, Norton Sound H. L. Mason 1931-7-17

GH: 01536990 Arctous rubra (Rehder & Wilson) Nakai USA: Alaska Dolgoi Island, Aleutian Chain H. L. Mason 6002 1931-5-24

GH: 01536995 Arctous rubra (Rehder & Wilson) Nakai USA: Alaska Unalaska H. L. Mason 6022 1931-5-30

GH: 00362608 Cassiope mertensiana californica Piper USA: California Tioga Mines H. L. Mason 4877 1928-7-5

GH: 01537476 Cassiope tetragona (Linnaeus) D. Don USA: Alaska Cape Lisburne H. L. Mason 1931-8-13

GH: 01537477 Cassiope tetragona (Linnaeus) D. Don USA: Alaska St. Lawrence Island, Bering Sea. Iviktook La... H. L. Mason 1931-7-10

GH: 01537518 Cassiope tetragona (Linnaeus) D. Don USA: Alaska St. Lawrence Island, Bering Sea. Naskook Lag... H. L. Mason 1931-7-12

GH: 01562161 Chimaphila menziesii (R. Brown) Sprengel USA: Washington from Glacier to Mt. Baker H. L. Mason 3837 1927-7-10

GH: 00362630 Chimaphila umbellata (Linnaeus) W. P. C. Barton USA: California road between Graeagle and Gold Lake H. L. Mason 1054 1924-6-18

GH: 01562198 Chimaphila umbellata (Linnaeus) W. P. C. Barton USA: Oregon Grizzly Peak; northeast of Ashland. H. L. Mason 4071 1927-8-9

GH: 01562392 Chimaphila umbellata occidentalis (Rydberg) S. F. Blake USA: Washington Mount Baker Highway H. L. Mason 7452 1933-7

GH: 00362665 Comarostaphylis diversifolia (Parry) Greene USA: California Along roadway through Buena Vista Canyon, Sa... H. L. Mason 4098 1927-9-25

GH: 01591048 Empetrum nigrum Linnaeus USA: Alaska Dolgoi Island, Aleutian Chain H. L. Mason 6005 1931-5-24

GH: 01591049 Empetrum nigrum Linnaeus USA: Alaska Whale Island, Norton Sound H. L. Mason 6055 1931-6-8

GH: 01591050 Empetrum nigrum Linnaeus USA: Alaska Unalaska H. L. Mason 6023 1931-5-30

GH: 01591975 Gaultheria ovatifolia A. Gray USA: Washington Baker Lake Region H. L. Mason 7434 1933-7-24

GH: 01592240 Gaultheria shallon Pursh USA: Washington North slopes of Mt. Baker H. L. Mason 3897 1927-7-12

A: 00362728 Kalmia microphylla (Hooker) A. Heller USA: California Sierra Nevada, Swamp Lake, Yosemite National... H. L. Mason 11852 1938-7-6

GH: 00362739 Kalmia microphylla (Hooker) A. Heller USA: California Along headwaters of Unicorn Creek H. L. Mason 698 1923-8-2

GH: 00362740 Kalmia microphylla (Hooker) A. Heller USA: California Tioga Mines H. L. Mason 4874 1923-7-5

GH: 01595233 Loiseleuria procumbens (Linnaeus) Desvaux USA: Alaska Unalaska: [no additional data] H. L. Mason 6021 1931-5-30

GH: 01718676 Menziesia ferruginea Smith USA: Washington North side of mountain, Mount Baker Highway H. L. Mason 7437 1933-7

GH: 01719176 Moneses sp. USA: Wyoming Mouth of Elk Creek, northwest of Tower Halls... H. L. Mason 3473 1926-7-2

GH: 01720118 Orthilia secunda (Linnaeus) House USA: Washington Baker Lake Region H. L. Mason 7435 1933-7-24

GH: 00362789 Phyllodoce breweri (A. Gray) A. Heller USA: California Tioga Mines H. L. Mason 4876 1928-7-5

GH: 01683402 Phyllodoce glanduliflora (Hooker) Coville USA: Washington [data not captured] H. L. Mason 3882 1927-7-11

GH: 00362883 Pyrola asarifolia Michaux USA: California near Blairsden H. L. Mason 1091 1924-6-26

GH: 00362892 Pyrola asarifolia bracteata (Hooker) Haber USA: California Mount Elwell H. L. Mason 2891 1925-7

GH: 01684893 Pyrola asarifolia bracteata (Hooker) Haber USA: Washington [data not captured] H. L. Mason 3838 1927-7-10

GH: 01684896 Pyrola asarifolia bracteata (Hooker) Haber USA: Washington [data not captured] H. L. Mason 7429 1933-7-24

GH: 01761862 Pyrola minor Linnaeus USA: Alaska [data not captured] H. L. Mason 1931-7-17

GH: 00362991 Rhododendron columbianum (Piper) Harmaja USA: California Mesa one mile east of mouth of Noyo River H. L. Mason 1928-8-25

GH: 00363032 Rhododendron columbianum (Piper) Harmaja USA: California Along margins of Bear Lakes H. L. Mason 1075 1924-6-19

GH: 00363055 Rhododendron macrophyllum D. Don ex Don USA: California Fort Ross to Willits H. L. Mason 4896 1928-7-11

GH: 00363065 Rhododendron macrophyllum D. Don ex Don USA: California Fort Bragg H. L. Mason 5632 1930-6

GH: 01765268 Rhododendron tomentosum Harmaja USA: Alaska [data not captured] H. L. Mason 1931-8-13

GH: 00363196 Vaccinium ovatum Pursh USA: California La Purrissima Ridge, east of Lompoc H. L. Mason 8054 1934-3-31
GH: 00363251 Vaccinium parvifolium Smith USA: California Woodwardia Creek, Big Basin H. L. Mason 2244 1925-10-25
Euphorbiaceae
A: 00047115 Croton masonii I. M. Johnston Mexico: Colima East slope of Socorro Island, Revillagigedo ... H. L. Mason 1637 1925-5-5

GH: 00047116 Croton masonii I. M. Johnston Mexico: Colima East slope of Socorro Island, Revillagigedo ... H. L. Mason 1637 1925-5-5

A: 00047115 Croton sp. Mexico: Colima East slope of Socorro Island, Revillagigedo ... H. L. Mason 1637 1925-5-5

GH: 00047116 Croton sp. Mexico: Colima East slope of Socorro Island, Revillagigedo ... H. L. Mason 1637 1925-5-5

GH: 00347531 Euphorbia misera Bentham USA: California San Diego: Hills near U.S. Navy fuel dock H. L. Mason 1496 1925-4-18
Fabaceae
GH: 01963144 Acmispon argophyllus (A. Gray) Brouillet USA: California Aguanga Valley H. L. Mason 3189 1926-5-2

GH: 01963278 Acmispon cytisoides (Bentham) Brouillet USA: California Point Lobos H. L. Mason 558 1923-6-23

GH: 01963285 Acmispon cytisoides (Bentham) Brouillet USA: California Road between Monterey and Carmel H. L. Mason 5881 1931-11

GH: 01963418 Acmispon grandiflorus (Bentham) Brouillet USA: California Hastings Creek near Pilot Hill H. L. Mason 4531 1928-5-4

GH: 01963725 Acmispon micranthus (Torr. & A. Gray) Brouillet USA: California Sycamore Canyon, south slope Mt. Diablo H. L. Mason 4428 1928-4-29

GH: 01963977 Acmispon rigidus (Bentham) Brouillet USA: California Desert flats near Indio H. L. Mason 4240 1928-3-11

GH: 01967034 Acmispon strigosus (Nuttall) Brouillet USA: California Middle Tule River, three miles above Springv... H. L. Mason 5074 1929-3-23

GH: 01967045 Acmispon strigosus (Nuttall) Brouillet USA: California Yosemite National Park. Salt Log Meadow H. L. Mason 602 1923-7-15

GH: 01967159 Acmispon subpinnatus (Lagasca) D. D. Sokoloff USA: California Mt. Diablo H. L. Mason 5124 1929-3-29

GH: 02064042 Astragalus alpinus Linnaeus USA: Alaska Point Lay, Arctic Coast H. L. Mason 1931-8-2

GH: 02064491 Astragalus atratus S. Watson USA: Nevada Overland Pass, south end of Ruby Range H. L. Mason 4825 1928-5-27

GH: 02047398 Astragalus coccineus Brand USA: California Rock Creek, Mojave Desert slope of San Gabri... H. L. Mason 3044 1926-4-27

GH: 02047867 Astragalus didymocarpus Hooker & Arnott USA: California four miles west of Saugus H. L. Mason 2963 1926-4-26

GH: 02044619 Astragalus gambellianus E. Sheldon USA: California hills back of Madera H. L. Mason 5098 1929-3-23

GH: 00366282 Astragalus hornii A. Gray USA: California Five miles east of Lost Hills H. L. Mason 6915 1932-4-3

GH: 02049492 Astragalus newberryi A. Gray USA: Nevada near Cave Creek Post Office, Ruby Valley H. L. Mason 4691 1928-5-22

GH: 02049493 Astragalus newberryi A. Gray USA: Nevada near Cave Creek Post Office, Ruby Valley H. L. Mason 4693 1928-5-22

GH: 02049826 Astragalus oxyphysus A. Gray USA: California San Benito River Canyon, fourteen miles belo... H. L. Mason 5541 1930-3-30

GH: 02048331 Astragalus purshii lectulus (S. Watson) M. E. Jones USA: California Dana Plateau, vicinity of Mount Dana, Sierra... H. L. Mason 11413 1936-7-28

GH: 02030173 Astragalus umbellatus Bunge USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6113 1931-7-10

GH: 00366514 Hosackia gracilis Bentham USA: California Fort Ross H. L. Mason 4281 1928-4-8

GH: 00366505 Hosackia gracilis Bentham USA: California north of San Rafael H. L. Mason 4308 1928-4-13

GH: 00366457 Lathyrus jepsonii Greene USA: California Along slough near railroad; Suisun Marsh H. L. Mason 772 1923-10-6

GH: 00366505 Lotus formosissimus Greene USA: California north of San Rafael H. L. Mason 4308 1928-4-13

GH: 00366514 Lotus formosissimus Greene USA: California Fort Ross H. L. Mason 4281 1928-4-8

GH: 02176153 Lupinus confertus Kellogg USA: Nevada Kingsbury Grade, 1 mile east of Tahoe Juncti... H. L. Mason 12171 1939-7-9

GH: 02177080 Lupinus lyallii danaus (A. Gray) S. Watson USA: California [data not captured] H. L. Mason 11290 1936-7-23

GH: 02129769 Medicago lupulina Linnaeus USA: Washington [data not captured] H. L. Mason 5311 1929-5-15

GH: 02131168 Oxytropis maydelliana Trautvetter USA: Alaska [data not captured] H. L. Mason 1931-7-29

GH: 02131272 Oxytropis nigrescens Fischer ex de Candolle USA: Alaska [data not captured] H. L. Mason 1931-7-10

GH: 02131259 Oxytropis nigrescens Fischer ex de Candolle USA: Alaska [data not captured] H. L. Mason 1931-7-29

GH: 02131809 Pediomelum californicum (S. Watson) Rydberg USA: California [data not captured] H. L. Mason 4573 1928-5-6

GH: 02135328 Rupertia physodes (Douglas ex Hooker) J. W. Grimes USA: California [data not captured] H. L. Mason 3241 1926-5-26

GH: 02137885 Trifolium albopurpureum Torrey & A. Gray USA: California [data not captured] H. L. Mason 4303 1928-4-13

GH: 02137884 Trifolium albopurpureum Torrey & A. Gray USA: California [data not captured] H. L. Mason 4500 1928-5-4

GH: 02137875 Trifolium albopurpureum Torrey & A. Gray USA: California [data not captured] H. L. Mason 4437 1928-4-29

GH: 02619432 Trifolium barbigerum Torrey USA: California [data not captured] H. L. Mason 4502 1928-5-4

GH: 02342248 Trifolium bifidum decipiens Greene USA: California [data not captured] H. L. Mason 4511 1928-5-4

GH: 02342247 Trifolium bifidum decipiens Greene USA: California [data not captured] H. L. Mason 5205 1929-4-25

GH: 02342246 Trifolium bifidum decipiens Greene USA: California [data not captured] H. L. Mason 4348 1928-4-15

GH: 02342298 Trifolium breweri S. Watson USA: California [data not captured] H. L. Mason 2216 1925-8-11

GH: 02342561 Trifolium ciliolatum Bentham USA: California [data not captured] H. L. Mason 2153 1925-7-10

GH: 02342559 Trifolium ciliolatum Bentham USA: California [data not captured] H. L. Mason 4352 1928-4-15

GH: 02619524 Trifolium depauperatum Desvaux USA: California [data not captured] H. L. Mason 4336 1928-4-13

GH: 02619525 Trifolium depauperatum Desvaux USA: California [data not captured] H. L. Mason 2758 1926-3-21

GH: 02619578 Trifolium depauperatum truncatum (Greene) J. S. Martin ex Isely USA: California [data not captured] H. L. Mason 4367 1928-4-25

GH: 02619624 Trifolium depauperatum truncatum (Greene) J. S. Martin ex Isely USA: California [data not captured] H. L. Mason 4335 1928-4-13

GH: 02619544 Trifolium depauperatum amplectens (Torr. & A. Gray) Rattan USA: California [data not captured] H. L. Mason 5169 1929-4-7

GH: 02619545 Trifolium depauperatum amplectens (Torr. & A. Gray) Rattan USA: California [data not captured] H. L. Mason 4376 1928-4-25

GH: 02342797 Trifolium dichotomum Hooker & Arnott USA: California [data not captured] H. L. Mason 5228 1929-4-29

GH: 02342796 Trifolium dichotomum Hooker & Arnott USA: California [data not captured] H. L. Mason 4569 1928-5-6

GH: 02342792 Trifolium dichotomum Hooker & Arnott USA: California [data not captured] H. L. Mason 5214 1927-4-26

GH: 02342845 Trifolium eriocephalum Nuttall USA: California [data not captured] H. L. Mason 5868 1931-5-9

GH: 02620653 Trifolium fucatum Lindley USA: California [data not captured] H. L. Mason 4371 1928-4-25

GH: 02620665 Trifolium fucatum Lindley USA: California [data not captured] H. L. Mason 5143 1929-3-31

GH: 02342919 Trifolium gracilentum Torrey & A. Gray USA: California [data not captured] H. L. Mason 6844 1932-3-20

GH: 02342918 Trifolium gracilentum Torrey & A. Gray USA: California [data not captured] H. L. Mason 2951 1926-4-26

GH: 02620708 Trifolium grayi Lojacono USA: California [data not captured] H. L. Mason 5843 1931-4-12

GH: 02343490 Trifolium macraei Hooker & Arnott USA: California [data not captured] H. L. Mason 4369 1928-4-25

GH: 02343611 Trifolium microcephalum Pursh USA: California [data not captured] H. L. Mason 11973 1938-7-22

GH: 02343604 Trifolium microcephalum Pursh USA: California [data not captured] H. L. Mason 4340 1928-4-13

GH: 02620726 Trifolium microdon Hooker & Arnott USA: California [data not captured] H. L. Mason 4406 1928-4-28

GH: 02620728 Trifolium microdon Hooker & Arnott USA: California [data not captured] H. L. Mason 4306 1928-4-13

GH: 02464295 Trifolium oliganthum Steudel USA: California about ten miles above Oakdale, Sierra foothi... H. L. Mason 5179 1929-4-7

GH: 02464279 Trifolium oliganthum Steudel USA: California Cedar Mountain H. L. Mason 4560 1928-5-6

GH: 02464277 Trifolium oliganthum Steudel USA: California Marsh Creek Road; two miles above Clayton H. L. Mason 5131 1929-3-29

GH: 02343746 Trifolium olivaceum griseum Jepson USA: California [data not captured] H. L. Mason 5181 1929-4-7

GH: 02498827 Trifolium variegatum Nuttall USA: California meadow north of San Rafael H. L. Mason 4311 1928-4-13

GH: 02498852 Trifolium variegatum Nuttall USA: California Swift ranch near Latrobe H. L. Mason 4492 1928-5-4

GH: 02498856 Trifolium variegatum Nuttall USA: California Tiburon Peninsula H. L. Mason 4393 1928-4-28

GH: 02289257 Trifolium willdenovii Sprengel USA: California [data not captured] H. L. Mason 5206 1929-4-25

GH: 02289214 Trifolium willdenovii Sprengel USA: California [data not captured] H. L. Mason 4307 1928-4-13

GH: 02289213 Trifolium willdenovii Sprengel USA: California [data not captured] H. L. Mason 3103 1926-4-28

GH: 02344368 Trifolium wormskioldii Lehmann USA: California [data not captured] H. L. Mason 5221 1927-4-26

GH: 02344947 Vicia americana Muhlenberg ex Willdenow USA: California [data not captured] H. L. Mason 3675 1927-4-23

GH: 02347358 Vicia sativa Linnaeus USA: California [data not captured] H. L. Mason 2750 1926-3-20

Fagaceae
A: 00356882 Lithocarpus densiflorus echinoides (R. Brown) Abrams USA: California White plains, three miles east of Mendocino ... H. L. Mason 1934-9-3
A: 00356882 Notholithocarpus densiflorus (Hooker & Arnott) Manos, Cannon & S. H. Oh USA: California White plains, three miles east of Mendocino ... H. L. Mason 1934-9-3
Fontinalaceae
FH: 00487279 Fontinalis antipyretica Hedwig USA: California [data not captured] H. L. Mason 1930-10-25

FH: 00779871 Fontinalis missourica Cardot USA: California [data not captured] H. L. Mason 1930-10-25

Frankeniaceae
GH: 00376201 Frankenia salina (Molina) I. M. Johnston USA: California San Joaquin Delta near Holt H. L. Mason 4967 1928-9-30
GH: 00376220 Frankenia salina (Molina) I. M. Johnston USA: California 2-1/3 miles north of Cambria H. L. Mason 5503 1929-10-13
Frullaniaceae
FH: 00498050 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2613 1926-1-2

FH: 00498056 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2487 1925-11-15

FH: 00498077 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2518 1925-11-26

FH: 00498079 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 1925-1-11

FH: 00498080 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2600 1926-1-2

FH: 00498083 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2518 1925-11-26

FH: 00498084 Frullania bolanderi Austin USA: California [data not captured] H. L. Mason 2518 1925-11-26

FH: 00498126 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498127 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498129 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498132 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498134 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00498135 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2488 1925-11-15

FH: 00498136 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498141 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] H. L. Mason 2510 1925-11-26

FH: 00498193 Frullania franciscana M. Howe USA: California [data not captured] H. L. Mason 4990 1928-10-20

Gelidiaceae
FH: 00909908 Gelidium cartilagineum (Linnaeus) Gaillon USA: California Cambria, CA H. L. Mason 1929-10-12
Gentianaceae
GH: 00400175 Centaurium muehlenbergii (Grisebach) W. Wight USA: California East fork of Eel River near Garberville H. L. Mason 4903 1928-7-14

GH: 00400140 Centaurium tricanthum (Grisebach) B. L. Robinson USA: California Salt Log Meadow H. L. Mason 601 1923-7-15

GH: 00400106 Centaurium venustum (A. Gray) B. L. Robinson USA: California Pala Grade, Temescal Canyon H. L. Mason 3126 1926-4-30

GH: 02072715 Gentiana glauca Pallas USA: Alaska Nome Census Area: Rocky Point, Norton Sounds... H. L. Mason 1931-7-17

GH: 00400045 Gentianella detonsa holopetala (A. Gray) J. M. Gillett USA: California Yosemite National Park: North base of Puppy ... H. L. Mason 750 1923-8-21

GH: 00400045 Gentianopsis holopetala (A. Gray) Iltis USA: California Yosemite National Park: North base of Puppy ... H. L. Mason 750 1923-8-21

GH: 00400175 Zeltnera muehlenbergii (Grisebach) G. Mansion USA: California East fork of Eel River near Garberville H. L. Mason 4903 1928-7-14

GH: 00400140 Zeltnera trichantha (Grisebach) G. Mansion USA: California Salt Log Meadow H. L. Mason 601 1923-7-15

GH: 00400106 Zeltnera venusta (A. Gray) G. Mansion USA: California Pala Grade, Temescal Canyon H. L. Mason 3126 1926-4-30

Geocalycaceae
FH: 00500436 Lophocolea heterophylla (Schrader) Dumortier USA: California [data not captured] H. L. Mason 1927-9-25

FH: 00500438 Lophocolea heterophylla (Schrader) Dumortier USA: California [data not captured] H. L. Mason 2525 1925-12-20

FH: 00500439 Lophocolea heterophylla (Schrader) Dumortier USA: California [data not captured] H. L. Mason 2508 1925-11-26

FH: 00500440 Lophocolea heterophylla (Schrader) Dumortier USA: California [data not captured] H. L. Mason 2525 1925-12-20

FH: 00500444 Lophocolea heterophylla (Schrader) Dumortier USA: California [data not captured] H. L. Mason 2525 1925-12-20

Geraniaceae
GH: 00363408 California macrophylla (Hooker & Arnott) Aldasoro, C. Navarro, P. Vargas, L. Sáez & Aedo USA: California Briones Road to Antioch H. L. Mason 5209 1929-4-25

GH: 00363409 California macrophylla (Hooker & Arnott) Aldasoro, C. Navarro, P. Vargas, L. Sáez & Aedo USA: California Marsh Creek Road, about five miles from Bren... H. L. Mason 5060 1929-3-15

GH: 00363408 Erodium macrophyllum Hooker & Arnott USA: California Briones Road to Antioch H. L. Mason 5209 1929-4-25

GH: 00363409 Erodium macrophyllum Hooker & Arnott USA: California Marsh Creek Road, about five miles from Bren... H. L. Mason 5060 1929-3-15

Hippocastanaceae
GH: 00381755 Aesculus californica (Spach) Nuttall USA: California Tehachapi Mountains, Tejon Pass, 30 miles fr... H. L. Mason 5358 1929-6-2
GH: 00381781 Aesculus californica (Spach) Nuttall USA: California Tuolumne Canyon near Mather H. L. Mason 2129 1925-6-27
Hippuridaceae
GH: 02000401 Hippuris vulgaris Linnaeus USA: Alaska [data not captured] H. L. Mason 1931-8-13

GH: 02000489 Hippuris vulgaris Linnaeus USA: Nevada [data not captured] H. L. Mason 4675 1928-5-21

GH: 02000529 Hippuris vulgaris Linnaeus USA: Washington [data not captured] H. L. Mason 5316 1929-5-15

Hydrophyllaceae
GH: 00402740 Eriodictyon californicum (Hooker & Arnott) Torrey USA: California Hog Ranch, Mather H. L. Mason 2124 1925-6-27
GH: 00402987 Phacelia mohavensis A. Gray USA: California Higher slopes of Mount San Antonio (Baldy) H. L. Mason 3767 1927-6-14
GH: 00401012 Phacelia phacelioides (Bentham) Brand USA: California Trail between Juniper Camp and Deer Flat, Mo... H. L. Mason 11749 1938-5-3
Hypericaceae
GH: 00067624 Hypericum eastwoodianum I. M. Johnston Mexico: Socorro Island, sheltered places on face of ... H. L. Mason 1614 1925-5-4

Iridaceae
GH: 00257750 Iris munzii R. C. Foster USA: California North Fork of the Tule River, one mile below... H. L. Mason 11810 1938-5-9
Juglandaceae
A: 00422714 Juglans californica hindsii Jepson USA: California north bank of San Fracisquito Creek; north e... H. L. Mason 1107 1924-10-8
A: 00422714 Juglans hindsii (Jepson) Jepson ex R. E. Smith USA: California north bank of San Fracisquito Creek; north e... H. L. Mason 1107 1924-10-8
Juncaceae
GH: 02366796 Luzula spicata Linnaeus USA: California [data not captured] H. L. Mason 11276 1936-7-23

GH: 02366796 Luzula spicata nova Smiley USA: California [data not captured] H. L. Mason 11276 1936-7-23

Jungermanniaceae
FH: 00500706 Lophozia incisa (Schrader) Dumortier USA: Washington [data not captured] H. L. Mason 3938 1927-7-11

FH: 00500914 Lophozia ventricosa (Dickson) Dumortier USA: Washington [data not captured] H. L. Mason 3928 1927-7-11

FH: 00508748 Plectocolea crenulata (Mitten) A. Evans USA: California [data not captured] H. L. Mason 2529 1925-12-20

FH: 00508749 Plectocolea crenulata (Mitten) A. Evans USA: California [data not captured] H. L. Mason 2515 1925-11-26

Krameriaceae
GH: 00347702 Krameria canescens A. Gray USA: California Box S Spring, H. L. Mason 3083 1926-4-28

GH: 00347702 Krameria grayi Rose & Painter USA: California Box S Spring, H. L. Mason 3083 1926-4-28

Lamiaceae
GH: 00400308 Hyptis emoryi Torrey USA: California Hidden Springs Canyon, Coachella Mountains H. L. Mason 4231 1928-3-10

GH: 00400411 Mentha arvensis Linnaeus USA: California Mather H. L. Mason 2146 1925-7-4

GH: 00400412 Mentha arvensis Linnaeus USA: California 3 mi S. of Upper Lake H. L. Mason 1942-9-7

GH: 00400827 Pogogyne douglasii Bentham USA: California Four miles east of Middletown H. L. Mason 5683 1930-6

GH: 00400806 Pogogyne serpylloides (Torrey) A. Gray USA: California Hills west of San Andreas H. L. Mason 5554 1930-4

GH: 00400807 Pogogyne serpylloides (Torrey) A. Gray USA: California Arroyo Mocho, 6 miles south of Livermore, Mo... H. L. Mason 2803 1926-4-10

GH: 00400808 Pogogyne serpylloides (Torrey) A. Gray USA: California Ridge south of Claremont Canyon, Berkeley Hi... H. L. Mason 1014 1924-5-13

GH: 00400789 Pogogyne zizyphoroides Bentham USA: California Hills near Carbondale H. L. Mason 4476 1928-5-3

GH: 00400855 Prunella vulgaris lanceolata (W. P. C. Barton) Piper & Beattie USA: California Hog Ranch H. L. Mason 614 1923-7-16

GH: 00400855 Prunella vulgaris lanceolata (W. P. C. Barton) Fernald USA: California Hog Ranch H. L. Mason 614 1923-7-16

A: 00401598 Salazaria mexicana Torrey USA: California Vincent to Palmdale H. L. Mason 2981 1926-4-26

GH: 00400938 Salvia sonomensis Greene USA: California between Kelseyville and Lower Lake H. L. Mason 5252 1929-4-29

GH: 00402093 Scutellaria siphocamplyloides Vatke USA: California north slope of Twin Peaks, North Fork of Los... H. L. Mason 12280 1940-5-5

GH: 00402227 Stachys chamissonis Bentham USA: California Merced Lake H. L. Mason 1122 1924-10-19

GH: 00002166 Teucrium affine dentosum I. M. Johnston Mexico: Colima San Benedicto Island: H. L. Mason 1685 1925-5-11

GH: 00402483 Trichostema oblongum Bentham USA: California Hog Ranch, Mather H. L. Mason 2178 1925-7-27

Lauraceae
GH: 00381292 Umbellularia californica (Hooker & Arnott) Nuttall USA: California Hopland, Cloverdale Grade H. L. Mason 2558 1925-12-30
Lepidoziaceae
FH: 00500045 Lepidozia reptans (Linnaeus) Dumortier USA: California [data not captured] H. L. Mason 3391 1926-6-6

Liliaceae
GH: 00357385 Erythronium helenae Applegate USA: California East side of Mount St. Helena, Toll House Ca... H. L. Mason 2734 1926-3-14
GH: 00357429 Fritillaria purdyi Eastwood USA: California Serpentine ridge, three miles east of Middle... H. L. Mason 12385 1941-3-16
Limnanthaceae
GH: 01181274 Limnanthes douglasii R. Brown USA: California [data not captured] H. L. Mason 4310 1928-4-13

GH: 01181285 Limnanthes douglasii R. Brown USA: California [data not captured] H. L. Mason 4299 1928-4-8

Linaceae
GH: 00364896 Hesperolinon bicarpellatum (H. Sharsmith) H. Sharsmith USA: California Four miles east of MIddletown H. L. Mason 5689 1930-6

GH: 00364907 Hesperolinon breweri (A. Gray) Small USA: California Ridge running south of Mount Diablo, head of... H. L. Mason 1936-6-14

GH: 00364918 Hesperolinon congestum (A. Gray) Small USA: California Tiburon Peninsula H. L. Mason 4409 1928-4-28

GH: 00364923 Hesperolinon drymarioides (Curran) Small USA: California Black Diamond Ridge, Mendocino National Fore... H. L. Mason 14303 1952-6-19

GH: 02053339 Linum lewisii Pursh USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3469 1926-6-29

Lycopodiaceae
GH: 02163057 Diphasiastrum alpinum (Linnaeus) Holub USA: Alaska Nome Census Area: Rocky Point, Norton Sound H. L. Mason 1931-7-17

GH: 02163056 Diphasiastrum alpinum (Linnaeus) Holub USA: Alaska Unalaska: [no additional data] H. L. Mason 6018 1931-5-30

GH: 02077360 Huperzia selago (Linnaeus) Bernhardi ex Schrank & Martius USA: Alaska Unalaska: Dutch Harbor, Unalaska H. L. Mason 6032 1931-5-30

GH: 02077318 Huperzia selago (Linnaeus) Bernhardi ex Schrank & Martius USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-12

GH: 02077319 Huperzia selago (Linnaeus) Bernhardi ex Schrank & Martius USA: Alaska Nome Census Area: Rocky Point, Norton Sound H. L. Mason 1931-7-17

GH: 02077316 Huperzia selago (Linnaeus) Bernhardi ex Schrank & Martius USA: Alaska Prince of Wales-Hyder Census Area: Dolgoi Is... H. L. Mason 6009 1931-5-24

GH: 02077317 Huperzia selago (Linnaeus) Bernhardi ex Schrank & Martius USA: Alaska Prince of Wales-Hyder Census Area: Dolgoi Is... H. L. Mason 1931-5-24

GH: 02076489 Spinulum annotinum (Linnaeus) A. Haines USA: Alaska Prince of Wales-Hyder Census Area: Dolgoi Is... H. L. Mason 6010 1931-5-24

GH: 02076488 Spinulum annotinum (Linnaeus) A. Haines USA: Alaska Unalaska: Unalaska H. L. Mason 6020 1931-5-30

GH: 02076534 Spinulum annotinum (Linnaeus) A. Haines USA: Alaska Nome Census Area: Rocky Point, Norton Sound H. L. Mason 1931-7-17

Malvaceae
GH: 00058043 Sida nesogena I. M. Johnston Mexico: Colima Socorro Island: Grayson's Cove H. L. Mason 1613 1925-5-4
GH: 00420707 Sidalcea hartwegii A. Gray USA: California Near base of Pilot Hill about 11 mi. E. of F... H. L. Mason 1932-4-24

Marchantiaceae
FH: 00506663 Marchantia polymorpha Linnaeus USA: Washington [data not captured] H. L. Mason 3916 1927-7-11

Mimosaceae
GH: 01680514 Acacia constricta Bentham USA: Arizona north of Tucson H. L. Mason 5374 1929-6-7

GH: 01680019 Mimosa aculeaticarpa biuncifera (Bentham) Barneby USA: Arizona fourteen miles north of Tucson H. L. Mason 5371 1929-6-7

Myricaceae
A: 00343901 Morella californica (Chamisso) Wilbur USA: California along coast; canyon two miles north of Fort ... H. L. Mason 4893 1928-7-11
A: 00343911 Morella californica (Chamisso) Wilbur USA: California Lake Merced H. L. Mason 1130 1924-10-19
A: 00343914 Morella californica (Chamisso) Wilbur USA: California At border of deep forest and pygmy forest; m... H. L. Mason 4926 1928-8-25
A: 00343901 Myrica californica Chamisso USA: California along coast; canyon two miles north of Fort ... H. L. Mason 4893 1928-7-11
A: 00343911 Myrica californica Chamisso USA: California Lake Merced H. L. Mason 1130 1924-10-19
A: 00343914 Myrica californica Chamisso USA: California At border of deep forest and pygmy forest; m... H. L. Mason 4926 1928-8-25
Myrtaceae
GH: 00071233 Psidium socorrense I. M. Johnston Mexico: East slope of Socorro Island H. L. Mason 1639 1925-5-5

Nidulariaceae
FH: 00416641 Cyathus vernicosus (Bulliard) de Candolle USA: California Antioch: Sand dunes, Antioch, Contra Costa C... H. L. Mason 1941-2-2

FH: 00823804 Cyathus vernicosus (Bulliard) de Candolle USA: California Antioch: [data not captured] H. L. Mason s.n. 1941-2-2
Oleaceae
GH: 00401113 Forestiera neo-mexicana A. Gray USA: California Arroyo Mocho, sixteen miles south of Livermo... H. L. Mason 3656 1927-3-20

GH: 00401190 Fraxinus latifolia Bentham USA: California Ross Valley to Lake Lagunitas H. L. Mason 2225 1925-9-17

GH: 00401236 Fraxinus latifolia Bentham USA: California Near Cosumnes River bridge at mouth of Clark... H. L. Mason 4490a 1928-5-3

GH: 00401190 Fraxinus oregona Nuttall USA: California Ross Valley to Lake Lagunitas H. L. Mason 2225 1925-9-17

GH: 00401236 Fraxinus oregona Nuttall USA: California Near Cosumnes River bridge at mouth of Clark... H. L. Mason 4490a 1928-5-3

GH: 01850333 Fraxinus velutina Torrey USA: Arizona North of Prescott H. L. Mason 5389 1929-6-7

Onagraceae
GH: 01624404 Boisduvalia densiflora (Lindley) S. Watson USA: California Hog Ranch H. L. Mason 2163 1925-7-16

GH: 01625416 Camissonia campestris (Greene) P. H. Raven USA: California Antioch sandhills H. L. Mason 5820 1931-4-5

GH: 01674505 Circaea alpina pacifica (Ascherson & Magnus) P. H. Raven USA: California Hetch Hetchy H. L. Mason 623 1923-7-21

GH: 00367692 Clarkia breweri (A. Gray) Greene USA: California Tres Pinos Creek, 2.4 miles southeast of Emm... H. L. Mason 12282 1940-5-5

Orchidaceae
AMES: 02051582 Cephalanthera austiniae Bentham & Hooker f. USA: California Blue Creek, a tributary of north fork of Mok... H. L. Mason 5700 1930-7

AMES: 02051583 Cephalanthera austiniae Bentham & Hooker f. USA: California Sierra Nevada Mountains, Tuolumne Big Tree G... H. L. Mason 304 1922-7-3

GH: 01938498 Corallorhiza mertensiana Bongard USA: Washington along trail from Glacier to Mount Baker H. L. Mason 3837a 1927-7-10

AMES: 02065839 Dactylorhiza aristata (Fischer ex Lindley) Soó USA: Alaska Unalaska: Dutch Harbor H. L. Mason 6033 1931-5-30

GH: 02159479 Elleanthus flavescens (Lindley) H. G. Reichenbach Colombia: Caqueta Pass between Garzon and Florencia; east slop... H. L. Mason 13954 1949-2-21

AMES: 02109162 Epidendrum fimbriatum rhomboglossum (Kraenzlin) C. Schweinfurth Colombia: Boyacá El Pino on ridge 12 km. northeast of Leiva a... H. L. Mason 13741 1949-1-19

AMES: 02109161 Epidendrum fimbriatum rhomboglossum (Kraenzlin) C. Schweinfurth Colombia: Cundinamarca About 40 km. southwest of Bogota; Cordillera... H. L. Mason 13768 1949-1-24

AMES: 02109160 Epidendrum fimbriatum rhomboglossum (Kraenzlin) C. Schweinfurth Colombia: Caqueta Pass between Garzon and Florencia; east slop... H. L. Mason 13949 1949-2-21

AMES: 02051485 Epipactis gigantea Douglas ex Hooker USA: California St. Helena Creek, slopes of Mount St. Helena H. L. Mason 5679 1930-6

AMES: 02050999 Listera convallarioides (Swartz) Nuttall ex Elliott USA: California Blue Creek, tributary of north fork of the M... H. L. Mason 5709 1930-7

AMES: 02051000 Listera convallarioides (Swartz) Nuttall ex Elliott USA: California along Smith Peak Trail northeast of Mather H. L. Mason 2190 1925-7-30

AMES: 02051089 Listera convallarioides (Swartz) Nuttall ex Elliott USA: Washington North side of Mount Baker, Mount Baker Highw... H. L. Mason 7447 1933-7

AMES: 02051363 Listera cordata (Linnaeus) R. Brown USA: Washington Mount Baker H. L. Mason 3850 1927-7-10

AMES: 02063690 Platanthera dilatata leucostachys (Lindley) Luer USA: California Lodge Meadows, Mather H. L. Mason 312 1922-7-19

AMES: 02050080 Platanthera sparsiflora (S. Watson) Schlechter USA: California Tuolumne Big Tree Grove, Yosemite National P... H. L. Mason 305 1922-7-3

AMES: 02050199 Platanthera stricta Lindley USA: Washington along trail from Glacier to Mt. Baker H. L. Mason 3842 1927-7-10

AMES: 00074824 Pleurothallis unguicallosa Ames & C. Schweinfurth Mexico: Socorro Island (Revillagigedo island); east ... H. L. Mason 1628 1925-5-5

AMES: 00083490 Pleurothallis unguicallosa Ames & C. Schweinfurth Mexico: Socorro Island (Revillagigedo island); east ... H. L. Mason 1628 1925-5-5

Orobanchaceae
GH: 01878409 Castilleja neglecta Zeile USA: California back of Tiburon H. L. Mason 12286 1940-5-20

GH: 00365525 Castilleja pilosa Rydberg USA: California Mount Conness H. L. Mason 11287 1936-7-23

GH: 00365643 Cordylanthus maritimus palustris (Behr) T. I. Chuang & Heckard USA: California Dillons Beach H. L. Mason 5670 1930-6

GH: 00365525 Orthocarpus pilosus monensis Jepson USA: California Mount Conness H. L. Mason 11287 1936-7-23

GH: 02079403 Pedicularis lanata Willdenow ex Chamisso & Schlechtendal USA: Alaska Nome Census Area: St. Michael, Norton Sound H. L. Mason 6047 1931-6-8

GH: 02079544 Pedicularis langsdorffii Fischer ex Steven USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6090 1931-7-9

A: 02079900 Pedicularis parviflora pennellii (Hultén) Hultén USA: Alaska Nome Census Area: Rocky Point, Norton Sound. H. L. Mason 1931-7-17

GH: 02078324 Pedicularis sudetica Willdenow USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6111a 1931-7-10

Papaveraceae
GH: 01739040 Corydalis pauciflora (Stephan ex Willdenow) Persoon USA: Alaska Cape Lisburne. H. L. Mason 1931-8-13

GH: 00295008 Hesperomecon linearis (Benthem) Greene USA: California Carmel Canyon H. L. Mason 8268 1935-4-21

GH: 00257602 Meconella californica Torrey USA: California Lagunitas Creek H. L. Mason 5810 1931-3-13

GH: 00257618 Meconella californica Torrey USA: California San Bruno Mountains H. L. Mason 4162 1928-2-22

GH: 00257641 Meconella denticulata Greene USA: California San Antonio Canyon, San Gabriel Mountains H. L. Mason 3754

GH: 00257640 Meconella denticulata Greene USA: California Carmel Canyon H. L. Mason 8269 1935-4-21

GH: 00295008 Meconella linearis (Bentham) A. Nelson & J. F. Macbride USA: California Carmel Canyon H. L. Mason 8268 1935-4-21

GH: 00257602 Meconella oregana californica (Torrey & Fremont) Jepson USA: California Lagunitas Creek H. L. Mason 5810 1931-3-13

GH: 00257618 Meconella oregana californica (Torrey & Fremont) Jepson USA: California San Bruno Mountains H. L. Mason 4162 1928-2-22

GH: 00257641 Meconella oregana denticulata (Greene) Jepson USA: California San Antonio Canyon, San Gabriel Mountains H. L. Mason 3754

GH: 00257640 Meconella oregana denticulata (Greene) Jepson USA: California Carmel Canyon H. L. Mason 8269 1935-4-21

GH: 01857465 Papaver macounii Greene USA: Alaska Nome Census Area: Port Clarence, Bering Stra... H. L. Mason 1931-7-19

Passifloraceae
GH: 02411330 Passiflora mixta Linnaeus f. Colombia: Boyacá Ridge 10 km. north of Tunja, Paramo de Soté... H. L. Mason 13703 1949-1-19

Pelliaceae
FH: 00508226 Pellia fabroniana Raddi USA: Washington [data not captured] H. L. Mason 3923 1927-7-11

FH: 00508227 Pellia fabroniana Raddi USA: Washington [data not captured] H. L. Mason 3920 1927-7-11

FH: 00508245 Pellia neesiana (Gottsche) Limpricht USA: California [data not captured] H. L. Mason 4991 1928-10-20

Pinaceae
A: 00246891 Pinus albicaulis Engelmann USA: California hills between Saddlebag Lake and Conness Gla... H. L. Mason 11,519 1936-8-6

A: 00357743 Pinus contorta Douglas ex Loudon USA: California Just north of the town of Point Arena, Mendo... H. L. Mason 8148 1934-9-3

GH: 00357768 Pinus contorta Douglas ex Loudon USA: California White plains three miles east of Mendocino C... H. L. Mason 8146 1934-9-3

GH: 00022458 Pinus washoensis H. Mason & Stockwell USA: Nevada 3 miles east of highway summit, alt. 8100 fe... H. L. Mason 12370 1940-8-6
GH: 00022428 Pinus washoensis H. Mason & Stockwell USA: Nevada 3 miles east of highway summit, south side o... H. L. Mason 12370 1940-8-6

Piperaceae
GH: 01983189 Lepianthes peltata (Linnaeus) Rafinesque ex R. A. Howard Colombia: Huila Three km. west of Garzón; upper basin of R�... H. L. Mason 13894 1949-2-17

GH: 01982166 Peperomia galioides Kunth Colombia: Cundinamarca Mosquera Hills, rising from the savannah wes... H. L. Mason 13749 1949-1-23

GH: 00005019 Peperomia socorronis Trelease ex I. M. Johnston Mexico: Socorro Island, near Mt. Evermann summit. H. L. Mason 1653 1925-5-8

GH: 01982766 Peperomia tetraphylla (G. Forster) Hooker & Arnott Mexico: Colima Socorro Island: East slope of island H. L. Mason 1629 1925-5-5

GH: 01964426 Piper aduncum brachyarthrum (Trelease) Yuncker Colombia: Huila About 5 km. north of Villavieja; upper basin... H. L. Mason 13850 1949-2-9

Plantaginaceae
GH: 00048919 Callitriche autumnalis bicarpellaris Fenley ex Jepson USA: California four miles north of Clementes H. L. Mason 4445 1928-5-3

GH: 00048919 Callitriche fassettii Schotsman USA: California four miles north of Clementes H. L. Mason 4445 1928-5-3

GH: 00048919 Callitriche hermaphroditica Linnaeus USA: California four miles north of Clementes H. L. Mason 4445 1928-5-3

GH: 00048919 Callitriche hermaphroditica bicarpellaris (Fenley ex Jepson) H. Mason USA: California four miles north of Clementes H. L. Mason 4445 1928-5-3

GH: 00466666 Callitriche heterophylla Pursh USA: California Eighteen miles east of Madera, junction of Y... H. L. Mason 5111 1929-3-24

GH: 00466875 Callitriche marginata Torrey USA: California [data not captured] H. L. Mason 5171 1929-4-7

GH: 00466877 Callitriche marginata Torrey USA: California [data not captured] H. L. Mason 6852 1932-3-20

GH: 00466883 Callitriche marginata Torrey USA: California [data not captured] H. L. Mason 6810 1932-3-16

GH: 00466889 Callitriche marginata Torrey USA: California [data not captured] H. L. Mason 6807 1932-3-6

GH: 02212758 Callitriche sp. USA: California [data not captured] H. L. Mason 6801 1932-3-1

GH: 02212751 Callitriche sp. USA: California [data not captured] H. L. Mason 6802 1932-3-1

GH: 01998324 Collinsia callosa Parish USA: California [data not captured] H. L. Mason 10002 1935-4-29

GH: 01999033 Collinsia tinctoria Hartweg ex Bentham USA: California [data not captured] H. L. Mason 11121 1936-5-15

GH: 01999055 Collinsia torreyi A. Gray USA: California [data not captured] H. L. Mason 11258 1936-7-15

GH: 01999438 Gratiola ebracteata Bentham ex A. de Candolle USA: California [data not captured] H. L. Mason 4473 1928-5-3

GH: 01999435 Gratiola ebracteata Bentham ex A. de Candolle USA: California [data not captured] H. L. Mason 2230 1925-9-17

GH: 00365654 Keckiella antirrhinoides (Bentham) Straw USA: California Pala Grade H. L. Mason 3142 1926-4-30

GH: 00365764 Keckiella corymbosa (Bentham) Straw USA: California East Fork of the Eel River near Garberville H. L. Mason 4900 1928-7-14

GH: 02002781 Penstemon breviflorus Lindley USA: California [data not captured] H. L. Mason 2105 1925-6-24

GH: 02118790 Penstemon deustus Douglas USA: California [data not captured] H. L. Mason 3310 1926-5-30

GH: 02119938 Penstemon gracilentus A. Gray USA: Nevada [data not captured] H. L. Mason 12343 1940-7-29

GH: 02120210 Penstemon heterophyllus Lindley USA: California [data not captured] H. L. Mason 8071 1934-4-28

GH: 02120447 Penstemon humilis Nuttall ex A. Gray USA: Nevada [data not captured] H. L. Mason 4794 1928-5-26

GH: 02120609 Penstemon laetus A. Gray USA: California [data not captured] H. L. Mason 599 1923-7-14

GH: 02120631 Penstemon laetus A. Gray USA: California [data not captured] H. L. Mason 3271 1929-5-28

GH: 00367511 Penstemon newberryi A. Gray USA: California Road Between Graeagle & Gold Lake H. L. Mason 1065 1924-6-18

GH: 02121755 Penstemon procerus Douglas ex Graham USA: California [data not captured] H. L. Mason 1085 1926-6-19

GH: 02121864 Penstemon procerus Douglas ex Graham USA: Washington [data not captured] H. L. Mason 3851 1927-7-11

GH: 02122055 Penstemon radicosus A. Nelson USA: Wyoming Crescent Hill, Yellowstone National Park. H. L. Mason 3438 1926-6-29

GH: 02122504 Penstemon serrulatus Menzies ex Smith USA: Washington [data not captured] H. L. Mason 3827 1927-7-9

GH: 02122624 Penstemon speciosus Douglas USA: Nevada [data not captured] H. L. Mason 4791 1928-5-26

GH: 01804656 Tonella collinsioides Nuttall ex A. Gray USA: Oregon [data not captured] H. L. Mason 5322 1929-5-18

GH: 01804647 Tonella collinsioides Nuttall ex A. Gray USA: California [data not captured] H. L. Mason 5255 1929-4-29

Poaceae
GH: 00360099 Koeleria cristata Persoon USA: California Laundry farm, Oakland Hills H. L. Mason 7051 1932-4-28
GH: 00024195 Paspalum longum Chase ex I. M. Johnston Mexico: Colima Revillagigedo Islands, Socorro Island, Benne... H. L. Mason 1648 1925-5-7

GH: 00341837 Vulpia microstachys ciliata (A. Gray ex Beal) Lonard & Gould USA: California Laundry farm, Oakland hills H. L. Mason 7066 1932-5-4
Polemoniaceae
GH: 01000330 Aliciella leptomeria (A. Gray) J. M. Porter USA: California north of Mono Lake along road to Bodie H. L. Mason 12485 1941-7-13

GH: 01083848 Allophyllum gilioides (Bentham) V. E. Grant & A. D. Grant USA: California Cold Creek, south of Lake Tahoe H. L. Mason 12487 1941-7-16

GH: 01083850 Allophyllum gilioides (Bentham) V. E. Grant & A. D. Grant USA: California Miguel Meadow, west of Hetch Hetchy Valley. ... H. L. Mason 12479 1941-7-12

GH: 00078495 Eriastrum brandegeeae H. Mason USA: California Obsidian Ridge, southeast of Borax Lake H. L. Mason 12604 1945-6-28

GH: 00385113 Gilia capitata chamissonis (Greene) V. E. Grant USA: California Point Reyes Peninsula, 12.5 miles from Inver... H. L. Mason 11840 1938-5-18

GH: 00385305 Leptodactylon californicum tomentosum P. J. Gordon USA: California north end of Nipomo mesa H. L. Mason 12402 1941-3-28

GH: 00385227 Leptosiphon grandiflorus Bentham USA: California Los Banos Creek H. L. Mason 12275 1940-5-5

GH: 00385242 Leptosiphon pygmaeus (Brand) J. M. Porter & L. A. Johnson USA: California southwest facing slopes of Mount Hamilton, M... H. L. Mason 8300 1935-5-4

GH: 00091307 Linanthus androsaceus laetus H. Mason USA: California Cherokee, 1000 feet H. L. Mason 12414 1941-4-6

GH: 00091310 Linanthus bakeri H. Mason USA: California Pilot Hill H. L. Mason 7015 1932-4-25

GH: 00385305 Linanthus californicus tomentosus (Gordon-Reedy) J. M. Porter & R. Patterson USA: California north end of Nipomo mesa H. L. Mason 12402 1941-3-28

GH: 00385242 Linanthus pygmaeus (Brand) J. T. Howell USA: California southwest facing slopes of Mount Hamilton, M... H. L. Mason 8300 1935-5-4

GH: 00385256 Navarretia cotulifolia (Bentham) Hooker & Arnott USA: California North of Aetna Springs near Napa-Lake county... H. L. Mason 7223 1935-4-30

GH: 00403744 Navarretia linearifolia (Howell) L. A. Johnson USA: California In wet bog: Summit of grade, Scott Mountain H. L. Mason 14049 1950-7-15

GH: 00091332 Navarretia pauciflora H. Mason USA: California Playa strewn with obsidion rubble and surrou... H. L. Mason 12583 1945-5-12

GH: 00091333 Navarretia pauciflora H. Mason USA: California Playa strewn with obsidion rubble and surrou... H. L. Mason 12583 1945-5-13

GH: 00443197 Polemonium eximium Greene USA: California White Mountain, Mount Conness Range, Sierra ... H. L. Mason 11340 1936-7-24

Polygalaceae
GH: 00347765 Polygala cornuta Kellogg USA: California Donner Pass Road near Alta H. L. Mason 3288 1926-5-29

GH: 00347791 Polygala cornuta fishiae (Parry) Jepson USA: California Camp Comfort, San Antonio Canyon, Ojai H. L. Mason 524 1923-6-20

Polygonaceae
GH: 02346194 Aconogonon davisae (Brewer ex A. Gray) Soják USA: California [data not captured] H. L. Mason 12353 1940-7-30

GH: 02346539 Bistorta plumosa (Small) Greene USA: Alaska [data not captured] H. L. Mason 1931-7-17

GH: 00369838 Chorizanthe cuspidata S. Watson USA: California sand dunes near San Francisco H. L. Mason 2871 1926-4-18

GH: 01717537 Chorizanthe diffusa Bentham USA: California Harris Grade, on La Purisima Ridge, between ... H. L. Mason 397 1923-6-15

GH: 00369854 Chorizanthe douglasii Bentham USA: California Carmel River, ten miles above Carmel H. L. Mason 542 1923-6-23

GH: 01717775 Chorizanthe procumbens Nuttall USA: California Tenescal canyon along Pala Grade toward Palo... H. L. Mason 3129 1936-4-30

GH: 00369901 Chorizanthe pungens Bentham USA: California Del Monte H. L. Mason 565 1923-6-23
GH: 01717816 Chorizanthe staticoides Bentham USA: California Five miles below Laguna H. L. Mason 2913 1926-4-25

GH: 01717887 Chorizanthe xantii S. Watson USA: California Tejon Pass, 30 miles from Bakersfield, Tehac... H. L. Mason 5354 1929-6-2

GH: 00036146 Coccoloba barbadensis Jacquin Mexico: Nayarit Maria Magdalena, Tres Marias Islands, Revill... H. L. Mason 1806 1925-5-21

A: 00061916 Coccoloba barbadensis Jacquin Mexico: Nayarit Maria Magdalena, Tres Marias Islands, Revill... H. L. Mason 1806 1925-5-21

GH: 00036146 Coccoloba masonii Lundell Mexico: Nayarit Maria Magdalena, Tres Marias Islands, Revill... H. L. Mason 1806 1925-5-21

A: 00061916 Coccoloba masonii Lundell Mexico: Nayarit Maria Magdalena, Tres Marias Islands, Revill... H. L. Mason 1806 1925-5-21

GH: 00369968 Eriogonum argillosum J. T. Howell USA: California Canyon of the San Benito River, 14 miles sou... H. L. Mason 1930-3-30

GH: 00364215 Eriogonum grande Greene USA: California in gullies near West Willow Creek, Santa Cru... H. L. Mason 4094 1927-9-24

GH: 01986361 Eriogonum nudum pubiflorum Bentham USA: California [data not captured] H. L. Mason 5433 1929-9-21

GH: 00364215 Eriogonum nudum grande (Greene) Jepson USA: California in gullies near West Willow Creek, Santa Cru... H. L. Mason 4094 1927-9-24

GH: 00364424 Eriogonum parvifolium Smith USA: California Harris Grade, between Harris and Lompoc, La ... H. L. Mason 394 1923-6-15

GH: 01986924 Eriogonum pusillum Torrey & A. Gray USA: California [data not captured] H. L. Mason 3012 1926-4-26

GH: 01966353 Eriogonum rosense A. Nelson & P. B. Kennedy USA: California [data not captured] H. L. Mason 11455 1936-7-31

GH: 01966368 Eriogonum roseum Durand & Hilgard USA: California [data not captured] H. L. Mason 1925-7-29

GH: 01966410 Eriogonum roseum Durand & Hilgard USA: California [data not captured] H. L. Mason 1934-9-8

GH: 01966585 Eriogonum spergulinum A. Gray USA: California [data not captured] H. L. Mason 4871 1928-7-4

GH: 01966961 Eriogonum thomasii Torrey USA: California [data not captured] H. L. Mason 4190 1928-3-10

GH: 02043997 Eriogonum vimineum Douglas ex Bentham USA: California [data not captured] H. L. Mason 5434 1929-9-21

GH: 02365648 Hollisteria lanata S. Watson USA: California [data not captured] H. L. Mason 12266 1940-5-4

GH: 00364715 Mucronea californica Bentham USA: California Carmel River, ten miles above Carmel H. L. Mason 544 1923-6-23

GH: 02365918 Oxyria digyna (Linnaeus) Hill USA: Alaska [data not captured] H. L. Mason 1931-7-9

GH: 02360398 Polygonum douglasii Greene USA: California [data not captured] H. L. Mason 11509 1936-8-6

GH: 02007781 Polygonum sawatchense Small USA: Nevada [data not captured] H. L. Mason 12375 1940-8-6

Porellaceae
FH: 00506027 Madotheca navicularis (Lehmann & Lindenberg) Nees USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00506040 Madotheca navicularis (Lehmann & Lindenberg) Nees USA: California [data not captured] H. L. Mason 2517 1925-11-26

FH: 00506041 Madotheca navicularis (Lehmann & Lindenberg) Nees USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00506328 Madotheca rivularis Nees USA: California [data not captured] H. L. Mason 1925-2

FH: 00506329 Madotheca rivularis Nees USA: California [data not captured] H. L. Mason 2523 1925-11-26

FH: 00506295 Madotheca roellii (Stephani) Stephani USA: California [data not captured] H. L. Mason 2519 1925-11-26

FH: 00506297 Madotheca roellii (Stephani) Stephani USA: California [data not captured] H. L. Mason 2519 1925-11-20

FH: 00506301 Madotheca roellii (Stephani) Stephani USA: California [data not captured] H. L. Mason 2519 1925-11-26

Portulacaceae
GH: 00376994 Calyptridium quadripetalum S. Watson USA: California Four miles north of Knoxville on the Montice... H. L. Mason 10010 1935-5-30

GH: 00376996 Calyptridium quadripetalum S. Watson USA: California Bartlett Springs, sixteen miles northeast of... H. L. Mason 11097a 1936-4-26

GH: 00376994 Cistanthe quadripetala (S. Watson) Hershkovitz USA: California Four miles north of Knoxville on the Montice... H. L. Mason 10010 1935-5-30

GH: 00376996 Cistanthe quadripetala (S. Watson) Hershkovitz USA: California Bartlett Springs, sixteen miles northeast of... H. L. Mason 11097a 1936-4-26

GH: 01858360 Cistanthe umbellata (Torrey) Hershkovitz USA: California Tioga Crest, east of Saddlebag Lake, Sierra ... H. L. Mason 11463 1936-7-31

GH: 01858363 Cistanthe umbellata (Torrey) Hershkovitz USA: California Mount Conness, Sierra Nevada H. L. Mason 11310 1936-7-23

GH: 01858374 Cistanthe umbellata (Torrey) Hershkovitz USA: California Mount Conness, Sierra Nevada H. L. Mason 11309 1936-7-23

GH: 01858462 Claytonia acutifolia Pallas ex Willdenow USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6104 1931-7-10

GH: 01858603 Claytonia exigua Torrey & A. Gray USA: California junction 1.2 mile southwest of Sunol H. L. Mason 1281 1925-3-7

GH: 01858650 Claytonia gypsophiloides Fischer & C. A. Meyer USA: California Mount St. Helena H. L. Mason 2716 1926-3-14

GH: 00376969 Claytonia megarhiza (A. Gray) Parry ex S. Watson USA: California Bernice Lake, Yosemite National Park H. L. Mason 9450 1935-7-29

Primulaceae
GH: 01942070 Androsace chamaejasme lehmanniana (Sprengel) Hultén USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-10

GH: 00424256 Androsace elongata acuta (Greene) G. T. Robbins USA: California two miles east of Midway H. L. Mason 6820 1932-3-19

GH: 01942070 Androsace lehmanniana Sprengel USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 1931-7-10

GH: 00424219 Dodecatheon subalpinum Eastwood USA: California Yosemite Creek drainage, Tioga Road, head of... H. L. Mason 4867 1928-7-3

GH: 01927653 Primula borealis Duby USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6086 1931-6-26

GH: 01927796 Primula eximia Greene USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6070 1931-6-26

Pteridaceae
GH: 00518244 Cheilanthes microphylla Swartz Mexico: Colima Revillagigedo Islands, Socorro Island, above... H. L. Mason 1616 1925-5-4

GH: 00518244 Cheilanthes peninsularis insularis Weatherby Mexico: Colima Revillagigedo Islands, Socorro Island, above... H. L. Mason 1616 1925-5-4

Ptilidiaceae
FH: 00509119 Ptilidium sp. USA: Washington [data not captured] H. L. Mason 3942 1927-7-11

FH: 00509120 Ptilidium sp. USA: Washington [data not captured] H. L. Mason 3943 1927-7-11

FH: 00509121 Ptilidium sp. USA: Washington [data not captured] H. L. Mason 3917 1927-7-11

Pucciniaceae
FH: 00873028 Cumminsiella sanguinea (Peck) Arthur USA: Oregon Blue Mountains H. L. Mason 1926-7
FH: 00996733 Puccinia angustata Peck USA: California Tomales Point H. L. Mason 924 1952-11-13
FH: 00940889 Puccinia aristidae Tracy USA: California San Diego: [no additional data] H. L. Mason 1925-5
FH: 00940939 Puccinia asperior Ellis & Everhart USA: Nevada Lateral moraine along headwaters of Incline ... H. L. Mason 12342 1940-7-29
FH: 00950014 Puccinia crandallii Pammel & H. H. Hume USA: Wyoming Camp Roosevelt, Yellowstone Park H. L. Mason 1926

FH: 00955634 Puccinia harknessii Vize USA: California Carmel Creek, Monterey H. L. Mason 1928-10-14

FH: 01001602 Puccinia hydrocotyles (Montagne) Cooke USA: California Watsonville H. L. Mason 1930-9-10
FH: 01001971 Puccinia jonesii Peck USA: California Palomar Mt. H. L. Mason 1926-4
FH: 01001971 Puccinia lindrothii Sydow ex Lindroth USA: California Palomar Mt. H. L. Mason 1926-4
FH: 00782521 Puccinia melanconioides Ellis & Harkness USA: California Hog Ranch H. L. Mason 2141 H.E.P. 1923-7-20
FH: 00782522 Puccinia melanconioides Ellis & Harkness USA: California Hog Ranch H. L. Mason 1923-7-20
FH: 01129719 Puccinia polemonii Dietel & Holway USA: California Stony Brook Creek, near Niles H. L. Mason

FH: 00951905 Puccinia veratri Niessl USA: California Fort Bragg H. L. Mason 1928-8-25

FH: 01125063 Uromyces bicolor Ellis USA: California [no additional data] H. L. Mason 1923-8-21

FH: 00941437 Uromyces intricatus Cooke USA: California Mather H. L. Mason 1925

FH: 01122325 Uromyces proeminens (de Candolle) Léveillé USA: California Mather H. L. Mason 1923-7-14
Radulaceae
FH: 00509591 Radula bolanderi Gottsche ex Stephani USA: California [data not captured] H. L. Mason 2501 1925-11-26

Ranunculaceae
GH: 01720509 Aconitum delphinifolium de Candolle USA: Alaska Rocky Point, Norton Sound. H. L. Mason 1931-7-17

GH: 01707534 Anemone narcissiflora villosissima de Candolle USA: Alaska Unalaska: Dutch Harbor, Unalaska. H. L. Mason 6039 1931-5-30

GH: 01708391 Anemone richardsonii Hooker USA: Alaska Nome Census Area: Rocky Point, Norton Sound. H. L. Mason 1931-7-17

GH: 01709644 Aquilegia formosa Fischer USA: Nevada one mile southwest of Cave Creek Post Office... H. L. Mason 4782 1928-5-25

GH: 01657764 Coptidium pallasii Tzvelev USA: Alaska Cape Lisburne H. L. Mason 1931-8-13

GH: 01658032 Coptis trifolia (Linnaeus) Salisbury USA: Alaska Unalaska: Dutch Harbor, Unalaska. H. L. Mason 6027 1931-5-30

GH: 00369734 Delphinium recurvatum Greene USA: California Ortigalita Canyon, 2 miles north east of Ort... H. L. Mason 12255 1940-5-4

GH: 01836347 Ranunculus nivalis Linnaeus USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6088 1931-6-26

Rhamnaceae
GH: 00367969 Ceanothus cordulatus Kellogg USA: California Big Oak Flat Road near Tuolumne Grove. H. L. Mason 2211 1925-8-11

GH: 00349351 Ceanothus gloriosus exaltatus J. T. Howell USA: California Vine Hill School, 12 miles west of Santa Ros... H. L. Mason 5802 1931-3-7

GH: 00349515 Ceanothus integerrimus Hooker & Arnott USA: California Santa Lucia Mountains, near Santa Lucia Rang... H. L. Mason 5848 1931-4-19

GH: 00349712 Ceanothus lemmonii Parry USA: California Rattlesnake Creek five miles south of Grass ... H. L. Mason 3284 1926-5-29

GH: 00349747 Ceanothus leucodermis Greene USA: California Priest Valley H. L. Mason 5601 1930-4-21

GH: 00349972 Ceanothus palmeri Trelease USA: California near bridge of Cosumnes River at mouth of Cl... H. L. Mason 4488 1928-5-3

GH: 00349973 Ceanothus palmeri Trelease USA: California Rose Springs (Eggars) H. L. Mason 4519 1928-5-4

GH: 00349974 Ceanothus palmeri Trelease USA: California near bridge of Cosumnes River at mouth of Cl... H. L. Mason 4488 1928-5-3

GH: 00425078 Ceanothus parvifolius (S. Watson) Trelease USA: California 1 mile west of Calaveras Grove H. L. Mason 3343 1926-5-31

GH: 00425079 Ceanothus parvifolius (S. Watson) Trelease USA: California Rose Springs, Eggars H. L. Mason 4518 1928-5-4

GH: 00425119 Ceanothus prostratus Bentham USA: California Graeagle H. L. Mason 1046 1924-6-16

GH: 00425153 Ceanothus purpureus Jepson USA: California Betw. Santa Rosa and Guerneville, 8 mi. w. o... H. L. Mason 1931-3-8

GH: 00425227 Ceanothus rigidus Nuttall USA: California Big Sur Road, 20 miles south of Carmel H. L. Mason 5027 1929-3-2

GH: 00425422 Ceanothus tomentosus Parry USA: California 3 miles south of Ione H. L. Mason 6986 1932-4-24

GH: 00425434 Ceanothus tomentosus Parry USA: California hills one mile south of Ione H. L. Mason 4467 1928-5-3

GH: 00425837 Frangula californica (Eschscholtz) A. Gray USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5742 1930-10-25

GH: 00425973 Frangula californica occidentalis (Howell ex Greene) Kartesz & Gandhi USA: California East slope of Southfork Mountains, on road f... H. L. Mason 7109 1932-7-21

A: 00378109 Frangula purshiana (de Candolle) A. Gray USA: California Along stream running north into Bear Lake H. L. Mason 1071 1924-6-19

A: 00378180 Rhamnus alnifolia L'Heritier USA: California Squaw Valley 7 miles northeast of Tahoe City H. L. Mason 12200 1939-8-3

GH: 00378184 Rhamnus alnifolia L'Heritier USA: California Squaw Valley 7 miles northwest of Tahoe City H. L. Mason 12200 1939-8-3

GH: 00425837 Rhamnus californica Eschscholtz USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5742 1930-10-25

GH: 00425973 Rhamnus californica occidentalis (Howell ex Greene) C. B. Wolf USA: California East slope of Southfork Mountains, on road f... H. L. Mason 7109 1932-7-21

GH: 00378340 Rhamnus crocea ilicifolia (Kellogg) C. B. Wolf USA: California Morro Creek drainage, 8.4 miles west of Atas... H. L. Mason 5493 1929-10-12

GH: 00378340 Rhamnus crocea ilicifolia (Kellogg) Greene USA: California Morro Creek drainage, 8.4 miles west of Atas... H. L. Mason 5493 1929-10-12

A: 00378109 Rhamnus purshiana de Candolle USA: California Along stream running north into Bear Lake H. L. Mason 1071 1924-6-19

Ricciaceae
FH: 00510117 Riccia campbelliana M. Howe USA: California [data not captured] H. L. Mason 1925-1

FH: 00510144 Riccia crystallina Linnaeus USA: California [data not captured] H. L. Mason 1933-5-28

FH: 00510149 Riccia crystallina Linnaeus USA: California [data not captured] H. L. Mason 1927-8-10

FH: 00510154 Riccia crystallina Linnaeus USA: California [data not captured] H. L. Mason 1933-5-28

FH: 00510567 Ricciocarpos natans (Linnaeus) Corda USA: California [data not captured] H. L. Mason 1933-1-14

FH: 00510569 Ricciocarpos natans (Linnaeus) Corda USA: California [data not captured] H. L. Mason 1933-1-14

FH: 00510570 Ricciocarpos natans (Linnaeus) Corda USA: California [data not captured] H. L. Mason 2598 1926-1-1

FH: 00510573 Ricciocarpos natans (Linnaeus) Corda USA: California [data not captured] H. L. Mason 1933-1-14

FH: 00510574 Ricciocarpos natans (Linnaeus) Corda USA: California [data not captured] H. L. Mason 1933-1-14

Roccellaceae
FH: 00394172 Dendrographa leucophaea (Tuckerman) Darbishire USA: California [data not captured] H. L. Mason 1925-4

Rosaceae
GH: 01586423 Acaena trifida Ruiz & Pavon USA: California San Francisco: Bernal Heights H. L. Mason 1266 1925-3-1

GH: 00345295 Adenostoma fasciculatum Hooker & Arnott USA: California Hills about Pelican Bay, Santa Cruz Island H. L. Mason 4107 1927-9-25

GH: 00346789 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: California Near bridge of Cosumnes River at mouth of Cl... H. L. Mason 4490 1928-5-3

GH: 01728785 Amelanchier pallida Greene USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5743 1930-10-25

GH: 01729510 Amelanchier utahensis Koehne USA: Nevada Hills about Big Spring near Cave Creek P. O.... H. L. Mason 4725 1928-5-23

GH: 01587573 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Hills about Pelican Bay, Santa Cruz Island H. L. Mason 4108 1927-9-25

GH: 01587693 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California Tehachapi Mountains, Tejon Pass thirty miles... H. L. Mason 5359 1929-6-2

GH: 01587712 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California Palomar Mountain H. L. Mason 3157 1926-5-1

GH: 01608181 Dasiphora fruticosa (Linnaeus) Rydberg USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3456 1926-6-29

GH: 01609028 Geum aleppicum strictum Fernald USA: Wyoming Camp Roosevelt. Yellowstone National Park H. L. Mason 3498 1926-7-10

GH: 01610554 Geum triflorum ciliatum (Pursh) Fassett USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3432 1926-6-29

GH: 00345612 Horkelia bolanderi A. Gray USA: California between Kelseyville and Lower Lake H. L. Mason 8127 1934-5-5

GH: 00345638 Horkelia marinensis (Elmer) Crum USA: California Fort Bragg H. L. Mason 5741 1930-8

GH: 00345641 Horkelia parryi Greene USA: California Three miles south of Ione H. L. Mason 6978 1932-4-24

GH: 00345643 Horkelia parryi Greene USA: California two miles south of Ione H. L. Mason 7253 1933-5-29

GH: 00345648 Horkelia parryi Greene USA: California One mile south of Ione H. L. Mason 4464 1928-5-3

GH: 00345700 Ivesia lycopodioides A. Gray USA: California alpine slopes of Mount Conness, Sierra Nevad... H. L. Mason 11296B 1936-7-23

GH: 00345702 Ivesia lycopodioides A. Gray USA: California terminal moraine of Conness Glacier, Sierra ... H. L. Mason 11428 1936-7-29

GH: 00345715 Ivesia muirii A. Gray USA: California alpine slopes of Mount Conness, Sierra Nevad... H. L. Mason 11295 1936-7-23

GH: 00345719 Ivesia muirii A. Gray USA: California Johnson's Peak, near headwaters of Unicorn C... H. L. Mason 700 1923-8-2

GH: 00345735 Ivesia shockleyi S. Watson USA: California Dana plateau, vicinity of Mount Dana, Sierra... H. L. Mason 11398 1936-7-28

GH: 00345133 Lyonothamnus floribundus aspleniifolius (Greene) Brandegee USA: California Hills about Pelican Bay. Santa Cruz Island. H. L. Mason 4109 1927-9-25

GH: 00346914 Malus fusca (Rafinesque) C. K. Schneider USA: California Big Lagoon H. L. Mason 7101 1932-7-21

GH: 00346970 Oemleria cerasiformis (Torrey & A. Gray) J. W. Landon USA: California Summit Cuesta Grade H. L. Mason 533 1923-6-22

GH: 00346970 Osmaronia cerasiformis (Torrey & A. Gray ex Hooker & Arnott) Greene USA: California Summit Cuesta Grade H. L. Mason 533 1923-6-22

GH: 01590503 Physocarpus malvaceus (Greene) Kuntze USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3447 1926-6-29

GH: 01566937 Potentilla biennis Greene USA: Wyoming Camp Roosevelt H. L. Mason 4399 1926-7-10

GH: 00345738 Potentilla diversifolia Lehmann USA: California North base of Puppy Dome H. L. Mason 752 1923-8-21

GH: 01568565 Potentilla hyparctica Malte USA: Alaska Nome Census Area: S. Lawrence Island, Bering... H. L. Mason 1935-7-10

GH: 01568591 Potentilla hyparctica Malte USA: Alaska Nome Census Area: S. Lawrence Island, Bering... H. L. Mason 1935-7-10

GH: 01556283 Potentilla sp. USA: Wyoming Crescent Hill, Yellowstone National Park H. L. Mason 3437 1926-6-29

GH: 00346738 Prunus demissa (Nuttall) Walpers USA: California San Gabriel Mountains H. L. Mason 3777 1927-6-15

A: 00346750 Prunus demissa (Nuttall) Walpers USA: California Haywards H. L. Mason 1921-5-14

A: 00346446 Prunus emarginata (Douglas ex Hooker) Eaton USA: California Silver Lake, Sierra Nevada Mountains H. L. Mason 7263 1933-9-2

GH: 00346473 Prunus fasciculata (Torrey) A. Gray USA: California Ridge south of Isabella H. L. Mason 10,007 1935-5-1

GH: 00346491 Prunus fasciculata (Torrey) A. Gray USA: California Ridge south of Isabella H. L. Mason 10,007 1935-5-1

GH: 00346503 Prunus fasciculata punctata Jepson USA: California north end of Nipomo mesa H. L. Mason 12403 1941-5-28

GH: 00346505 Prunus fasciculata punctata Jepson USA: California north end of Nipomo mesa H. L. Mason 12403 1941-5-28

GH: 00346738 Prunus virginiana demissa (Nuttall) Torrey USA: California San Gabriel Mountains H. L. Mason 3777 1927-6-15

A: 00346750 Prunus virginiana demissa (Nuttall) Torrey USA: California Haywards H. L. Mason 1921-5-14

GH: 00346914 Pyrus rivularis Douglas ex Hooker USA: California Big Lagoon H. L. Mason 7101 1932-7-21

GH: 00345865 Rosa californica Chamisso & Schlechtendal USA: California Banks of the San Antonio River, in foothills... H. L. Mason 5774 1930-10-25

GH: 00346035 Rosa gymnocarpa Nuttall ex Torrey & A. Gray USA: California Cashion Creek, Las Trampas Ridge H. L. Mason 1161 1924-11-23

GH: 00346051 Rosa nutkana C. Presl USA: California East fork of the Eel River near Garberville H. L. Mason 4904 1928-7-14

GH: 01602766 Rubus arcticus Linnaeus USA: Alaska Nome Census Area: Rocky Point, Norton Sound. H. L. Mason 1931-7-17

GH: 01604100 Rubus chamaemorus Linnaeus USA: Alaska Nome Census Area: Rocky Point, Norton Sound. H. L. Mason 1931-7-17

GH: 00346189 Rubus leucodermis Douglas ex Torrey & A. Gray USA: California Hog Ranch, Mather H. L. Mason 2171 1925-7-16

GH: 00346243 Rubus spectabilis Pursh USA: California Inverness H. L. Mason 2644 1926-2-21

GH: 00346896 Sorbus californica Greene USA: California Along streams running north to Bearlake. Lak... H. L. Mason 1072 1924-6-19

Rubiaceae
GH: 00385892 Galium bifolium S. Watson USA: California Peregoy Meadow, Glacier Point road, Yosemite... H. L. Mason 12228 1936-7-12

GH: 00385884 Galium bolanderi A. Gray USA: California 1/2 mile west of Mather H. L. Mason 11253 1936-7-15

GH: 00417058 Galium trifidum subbiflorum (Wiegand) Puff (Wiegand) Puff USA: California Yosemite National Park: Peregoy Meadow, Glac... H. L. Mason 11241 1936-7-12

Rutaceae
GH: 00347911 Cneoridium dumosum (Nuttall ex Torrey & A. Gray) Hooker f. USA: California San Diego: Hills back of Navy Fuel Dock H. L. Mason 1497 1925-4-18

GH: 00347953 Ptelea baldwinii crenulata (Greene) Jepson USA: California Mt. Diablo H. L. Mason 1928-3-31

GH: 00347954 Ptelea baldwinii crenulata (Greene) Jepson USA: California Mt. Diablo H. L. Mason 1928-3-31

GH: 00347958 Ptelea baldwinii crenulata (Greene) Jepson USA: California Canyon back of Antioch hills north of Mount ... H. L. Mason 4270 1928-4-1

GH: 00347960 Ptelea baldwinii crenulata (Greene) Jepson USA: California Granite Canyon southwest of Coloma H. L. Mason 4521 1928-5-4

GH: 00347953 Ptelea crenulata Greene USA: California Mt. Diablo H. L. Mason 1928-3-31

GH: 00347954 Ptelea crenulata Greene USA: California Mt. Diablo H. L. Mason 1928-3-31

GH: 00347958 Ptelea crenulata Greene USA: California Canyon back of Antioch hills north of Mount ... H. L. Mason 4270 1928-4-1

GH: 00347960 Ptelea crenulata Greene USA: California Granite Canyon southwest of Coloma H. L. Mason 4521 1928-5-4

GH: 01584305 Ptelea trifoliata angustifolia (Bentham) V. L. Bailey USA: Arizona Kirkland Creek, twenty-five miles southwest ... H. L. Mason 5383 1929-6-7

GH: 00347985 Thamnosma montana Torrey & Fremont USA: California Three miles south of Barstow, Mojave Desert H. L. Mason 8173 1935-3-28

Sabiaceae
GH: 00051027 Meliosma socorrensis I. M. Johnston Mexico: Colima Revillagigedo Islands: east slope of Socorro... H. L. Mason 1627 1925-5-5

A: 00051028 Meliosma socorrensis I. M. Johnston Mexico: Colima Revillagigedo Islands: east slope of Socorro... H. L. Mason 1627 1925-5-5

Salicaceae
GH: 00382384 Salix arctica Pallas USA: California alpine slopes Mount Conness, Sierra Nevada H. L. Mason 11300 1936-7-23
GH: 00382384 Salix petrophila caespitosa (P. B. Kennedy) C. K. Schneider USA: California alpine slopes Mount Conness, Sierra Nevada H. L. Mason 11300 1936-7-23
Saxifragaceae
GH: 00363348 Bolandra californica A. Gray USA: California Blue Creek, near Hermit Springs, Sierra Neva... H. L. Mason 5708 1930-7

GH: 00363688 Boykinia elata (Nuttall) Greene USA: California West end of Big Basin H. L. Mason 3976 1927-7-27

GH: 00363703 Boykinia elata (Nuttall) Greene USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5754 1930-10-25

GH: 00363688 Boykinia occidentalis Torrey & A. Gray USA: California West end of Big Basin H. L. Mason 3976 1927-7-27

GH: 00363703 Boykinia occidentalis Torrey & A. Gray USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5754 1930-10-25

GH: 00363352 Chrysosplenium glechomifolium Nuttall ex Torrey & A. Gray USA: California Ten miles south of Crescent City H. L. Mason 5286 1929-5-10

GH: 00363379 Heuchera pilosissima Fischer & C. A. Meyer USA: California Coast 2 miles N. of Ft. Ross H. L. Mason 4286 1928-4-8

GH: 00363796 Lithophragma bolanderi A. Gray USA: California Mather H. L. Mason 580 1923-7-12

GH: 01711586 Micranthes foliolosa (R. Brown) Gornall USA: Alaska Wainwright Inlet, Arctic Coast H. L. Mason 1931-8-18

GH: 00381186 Micranthes nidifica (Greene) Small USA: California Hills above Emerald Bay, Lake Tahoe H. L. Mason 3306 1926-5-30

GH: 01712495 Micranthes spicata (D. Don) Small USA: Alaska Nome Census Area: Rocky Point, Norton Sound H. L. Mason 1931-7-17

GH: 00380089 Ribes cereum Douglas USA: California Kit Carson Pass road H. L. Mason 3324 1926-5-30

GH: 00380490 Ribes menziesii leptosmum (Coville) Jepson USA: California Point Reyes H. L. Mason 2661 1926-2-21

GH: 00380635 Ribes nevadense Kellogg USA: California Sour-dough Spring, Palomar Mountain H. L. Mason 3164 1926-5-1

GH: 00380641 Ribes nevadense Kellogg USA: California Hog Ranch, Mather H. L. Mason 2173 1925-7-16

GH: 00380721 Ribes quercetorum Greene USA: California Arroyo Mocho Canyon H. L. Mason 2821 1926-4-10

GH: 00380739 Ribes roezlii Regel USA: California Mather H. L. Mason 2158 1925-7-15

GH: 00380896 Ribes speciosum Pursh USA: California Twenty-five miles up Carmel River on the Jam... H. L. Mason 5018 1929-3-1

GH: 01619116 Saxifraga bracteata D. Don USA: Alaska Nome Census Area: St. Lawrence Island, Berin... H. L. Mason 6073 1931-6-26

GH: 01619347 Saxifraga bronchialis funstonii (Small) Hultén USA: Alaska Cape Lisburne H. L. Mason 1931-8-13

GH: 00381094 Saxifraga bryophora A. Gray USA: California Elizebeth Lake H. L. Mason 690 1923-8-2

GH: 00381134 Saxifraga californica Greene USA: California Sunol H. L. Mason 1284 1925-3-7

GH: 00381136 Saxifraga californica Greene USA: California Mt. Diablo H. L. Mason 2702 1926-3-7

GH: 01619756 Saxifraga cespitosa sileneflora (Sternberg) Hultén USA: Alaska Nome Census Area: Port Clarence, Bering Stra... H. L. Mason 1931-7-19

GH: 01619787 Saxifraga cespitosa uniflora (R. Brown) A. E. Porsild USA: Alaska Point Hope, Arctic Coast H. L. Mason 1931-7-29

GH: 01621191 Saxifraga flagellaris Willdenow USA: Alaska Cape Lisburne H. L. Mason 1931-8-13

GH: 01621377 Saxifraga hirculus Linnaeus USA: Alaska Cape Lisburne H. L. Mason 1931-8-13

GH: 00381167 Saxifraga mertensiana Bongard USA: California Five miles west of Laytonville H. L. Mason 5268 1929-5-9

GH: 00381186 Saxifraga nidifica Greene USA: California Hills above Emerald Bay, Lake Tahoe H. L. Mason 3306 1926-5-30

GH: 01621756 Saxifraga oppositifolia Linnaeus USA: Alaska Prince of Wales-Hyder Census Area: Dolgoi Is... H. L. Mason 6001 1931-5-24

GH: 01631181 Saxifraga rivularis Linnaeus USA: Alaska Icy Cape, Arctic Coast H. L. Mason 1931-8-16

GH: 00381227 Tiarella unifoliata Hooker USA: California Canyon 2 miles north of Fort Ross H. L. Mason 4888 1928-7-11

GH: 00381229 Tiarella unifoliata Hooker USA: California Big Basin H. L. Mason 2243a 1925-10-25

GH: 00381242 Tiarella unifoliata Hooker USA: California Bean Creek, Mt. Herman, Santa Cruz Mts. H. L. Mason 4003 1927-7-31

Scapaniaceae
FH: 00510621 Scapania americana Müller Freib. USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00510627 Scapania americana Müller Freib. USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00510674 Scapania bolanderi Austin USA: California [data not captured] H. L. Mason 1925-10-25

FH: 00510676 Scapania bolanderi Austin USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00510677 Scapania bolanderi Austin USA: California [data not captured] H. L. Mason 1933-3-4

FH: 00510689 Scapania bolanderi Austin USA: Washington [data not captured] H. L. Mason 3944 1927-7-11

Scrophulariaceae
A: 00367049 Diplacus grandiflorus Groenland USA: California Carmel River, Rancho del Monte H. L. Mason 1921-5-7

GH: 00367220 Diplacus puniceus Nuttall USA: California Pala grade, Temecula to Pala, Temecula Canyo... H. L. Mason 3119 1926-4-30

A: 00367049 Mimulus aurantiacus grandiflorus (Lindley) D. M. Thompson USA: California Carmel River, Rancho del Monte H. L. Mason 1921-5-7

GH: 00367220 Mimulus aurantiacus puniceus (Nuttall) D. M. Thompson USA: California Pala grade, Temecula to Pala, Temecula Canyo... H. L. Mason 3119 1926-4-30

Solanaceae
A: 00813456 Lycium richii A. Gray Mexico: Baja California Sur Magdalena Bay H. L. Mason 1925-5-29

GH: 00813438 Lycium richii A. Gray Mexico: Baja California Norte Cedros Island: [no additional data] H. L. Mason 2014 1925-6-4

GH: 00815167 Nicotiana clevelandii A. Gray Mexico: Baja California Norte San Martin Island H. L. Mason 2069 1925

GH: 00077240 Nicotiana nesophila I. M. Johnston Mexico: Revillagigedo Islands, Socorro Island, H. L. Mason 1596 1925-5-3

GH: 00815279 Nicotiana obtusifolia Mertens & Galeotti Mexico: Nayarit Tress Marias Islands; Maria Madre H. L. Mason I694 1925-5-16

GH: 00815386 Nicotiana stocktoni Brandegee Mexico: Colima Clarion Island: Sulphur Bay H. L. Mason 1585 1925-8-29

GH: 00244864 Solanum Linnaeus USA: California 5 miles above Auburn H. L. Mason 3269 1926-5-28

GH: 00244864 Solanum parishii A. Heller USA: California 5 miles above Auburn H. L. Mason 3269 1926-5-28

GH: 00244864 Solanum umbelliferum Eschscholtz USA: California 5 miles above Auburn H. L. Mason 3269 1926-5-28

GH: 00244848 Solanum umbelliferum Eschscholtz USA: California North slope of Twin Peaks, North Fork of Los... H. L. Mason 12276 1940-5-5

GH: 00244920 Solanum umbelliferum Eschscholtz USA: California South bank of Cosumnes River opposite Clark ... H. L. Mason 4485 1928-5-3

GH: 00244848 Solanum xanti A. Gray USA: California North slope of Twin Peaks, North Fork of Los... H. L. Mason 12276 1940-5-5

GH: 00244920 Solanum xanti intermedium Parish USA: California South bank of Cosumnes River opposite Clark ... H. L. Mason 4485 1928-5-3

Sphagnaceae
FH: 00922731 Sphagnum henryense Warnstorf USA: California [no additional data] H. L. Mason 1930-8-23

FH: 00924082 Sphagnum palustre Linnaeus USA: California [data not captured] H. L. Mason 1930-8-23

Styracaceae
GH: 00384818 Styrax redivivus (Torrey) L. C. Wheeler USA: California San Luis Rey River, four miles below Henshaw... H. L. Mason 3138 1926-4-30
GH: 00384820 Styrax redivivus (Torrey) L. C. Wheeler USA: California La Combre Peak, Santa Barbara, by way of Rat... H. L. Mason 456 1923-6-16
GH: 00384821 Styrax redivivus (Torrey) L. C. Wheeler USA: California Pitt River H. L. Mason 5876 1931-5-9
Targioniaceae
FH: 00511517 Targionia hypophylla Linnaeus USA: California [data not captured] H. L. Mason 2530 1925-12-20

Taxodiaceae
A: 00357849 Sequoia sempervirens (D. Don) Endlicher USA: California Pudding Creek, Mendocino County H. L. Mason 1928-8-26

Violaceae
GH: 02147459 Viola langsdorfii Fischer ex Gingins USA: Alaska Unalaska: Dutch Harbor, Unalaska H. L. Mason 6026 1931-5-30

Vitaceae
GH: 00381668 Vitis californica Bentham USA: California Lake Eleanor H. L. Mason 2138 1926-6-29

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