Aceraceae A: 01791447 Acer macrophyllum Pursh USA: California North slope of island, one tree above Canyon... Ralph Hoffmann 1930-4-12
Anacardiaceae A: 00347039 Rhus integrifolia (Nuttall) Bentham & Hooker f. ex W. H. Brewer & S. Watson USA: California Rocky slope above Water Canyon, Santa Rosa I... Ralph Hoffmann 1930-12-5
A: 00347040 Rhus integrifolia (Nuttall) Bentham & Hooker f. ex W. H. Brewer & S. Watson USA: California Santa Rosa Island Ralph Hoffmann 1930-4-8
A: 00347124 Rhus ovata S. Watson USA: California Above Christy's, Santa Cruz Island Ralph Hoffmann 11 1930-6-29
A: 00347381 Rhus sp. USA: California Santa Cruz Island Ralph Hoffmann 1930-6
A: 00347331 Rhus trilobata anisophylla (Greene) Jepson USA: California Prov. M. Ralph Hoffmann 1930-5-14
Asteraceae A: 00414257 Ambrosia salsola (Torrey & A. Gray ex A. Gray) Stother & B. G. Baldwin USA: California Townsend Pass Ralph Hoffmann 1930-4-26
A: 00404146 Brickellia atractyloides arguta (B. L. Robinson) Jepson USA: California Granite Wells Ralph Hoffmann 1930-4
A: 00414257 Hymenoclea salsola Torrey & A. Gray USA: California Townsend Pass Ralph Hoffmann 1930-4-26
Boraginaceae GH: 01956316 Amsinckia intermedia Fischer & C. A. Meyer USA: California north end of Foxen Canyon Ralph Hoffmann 80 1930-4-18
GH: 01956412 Amsinckia intermedia Fischer & C. A. Meyer USA: California Tehalchapi Pass Ralph Hoffmann 79 1930-4-28
GH: 00424640 Amsinckia sp. USA: California Zaca Road Ralph Hoffmann 81 1930-4-18
GH: 00424657 Amsinckia sp. USA: California Cave Springs Ralph Hoffmann 26 1930-4-25
GH: 01956971 Amsinckia spectabilis Fischer & C. A. Meyer USA: California San Miguel Island Ralph Hoffmann 75 1930-6-11
GH: 00424897 Cryptantha decipiens (M. E. Jones) A. Heller USA: California Rocky slope at west end of Providence Mts., ... Ralph Hoffmann 16 1930-5-18
GH: 00424898 Cryptantha decipiens (M. E. Jones) A. Heller USA: California 7 miles S. of Fenner Ralph Hoffmann 17 1930-5-17
GH: 00424900 Cryptantha decipiens (M. E. Jones) A. Heller USA: California 4 mi. west of Red Hills on road to Kelso V. Ralph Hoffmann 66 1930-4-27
GH: 00424905 Cryptantha decipiens (M. E. Jones) A. Heller USA: California Darwin Falls Ralph Hoffmann 70 1930-4-26
GH: 00424898 Cryptantha decipiens genuina I. M. Johnston USA: California 7 miles S. of Fenner Ralph Hoffmann 17 1930-5-17
GH: 00424900 Cryptantha decipiens genuina I. M. Johnston USA: California 4 mi. west of Red Hills on road to Kelso V. Ralph Hoffmann 66 1930-4-27
GH: 00424905 Cryptantha decipiens genuina I. M. Johnston USA: California Darwin Falls Ralph Hoffmann 70 1930-4-26
GH: 02023705 Cryptantha gracilis Osterhout USA: California Providence Mts, Mohave Desert Ralph Hoffmann 24 1930-5-15
GH: 00057348 Cryptantha hoffmannii I. M. Johnston USA: California Westgard Pass, rocky open slope, 7300 feet Ralph Hoffmann 78 1930-7-11
GH: 00404008 Cryptantha humilis (Greene) Payson USA: California Virginia Lakes Ralph Hoffmann 79 1930-7-11
GH: 00424938 Cryptantha rattanii Greene USA: California Alamo Creek, northern Los Angles County Ralph Hoffmann 15 1930-6
GH: 00424940 Cryptantha rattanii Greene USA: California Liebre Station, Ridge Route, No. Los Angeles... Ralph Hoffmann 68 1930-6-6
GH: 00424941 Cryptantha rattanii Greene USA: California Elizabeth Lake Canyon Ralph Hoffmann 14 1930-6
GH: 00424948 Cryptantha rattanii Greene USA: California Zaca Lake Ralph Hoffmann 12 1930-5-10
GH: 00424950 Cryptantha rattanii Greene USA: California Zaca Lake Ralph Hoffmann 11 1930-5-10
GH: 00424930 Cryptantha scoparia A. Nelson USA: California Westgard Pass Ralph Hoffmann 67 1930-7-10
GH: 00404008 Oreocarya humilis (A. Gray) Greene USA: California Virginia Lakes Ralph Hoffmann 79 1930-7-11
Caprifoliaceae A: 00422826 Lonicera hispidula (Lindley) Douglas ex Torrey & A. Gray USA: California Lady's Harbor, Santa Cruz Island Ralph Hoffmann 1930-4-12
A: 00422885 Lonicera hispidula (Lindley) Douglas ex Torrey & A. Gray USA: California Santa Cruz Island Ralph Hoffmann 1930-6-13
A: 00386001 Lonicera ledebourii Eschscholtz USA: California Oceano Ralph Hoffmann 1930-4-10
A: 00386051 Lonicera subspicata johnstonii D. D. Keck USA: California Coches Prietos, Santa Cruz Island Ralph Hoffmann 1930-7-1
A: 00386091 Sambucus caerulea Rafinesque USA: California San Rafael Mts. Ralph Hoffmann 1930-7
A: 00386102 Sambucus caerulea Rafinesque USA: California above the Sisquoc R., San Rafael Mts. Ralph Hoffmann 1930-7-26
A: 00386107 Sambucus caerulea Rafinesque USA: California Santa Cruz Island Ralph Hoffmann 1930-6-29
A: 00386154 Sambucus caerulea Rafinesque USA: California Valdez Harbor, Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00386091 Sambucus nigra cerulea (Rafinesque) Bolli USA: California San Rafael Mts. Ralph Hoffmann 1930-7
A: 00386102 Sambucus nigra cerulea (Rafinesque) Bolli USA: California above the Sisquoc R., San Rafael Mts. Ralph Hoffmann 1930-7-26
A: 00386107 Sambucus nigra cerulea (Rafinesque) Bolli USA: California Santa Cruz Island Ralph Hoffmann 1930-6-29
A: 00386154 Sambucus nigra cerulea (Rafinesque) Bolli USA: California Valdez Harbor, Santa Cruz Island Ralph Hoffmann 1930-6-15
Chenopodiaceae A: 00376354 Atriplex confertifolia (Torrey & Fremont) Watson USA: California Townsend Pass Ralph Hoffmann 1930-4-26
Cupressaceae A: 00404678 Cupressus arizonica nevadensis (Abrams) Little USA: California Bodfish Ralph Hoffmann 1930-4-28
A: 00404678 Cupressus nevadensis Abrams USA: California Bodfish Ralph Hoffmann 1930-4-28
A: 00356385 Juniperus californica utahensis Engelmann USA: California Providence Mts. Ralph Hoffmann 1930-5-16
A: 00356385 Juniperus osteosperma (Torrey) Little USA: California Providence Mts. Ralph Hoffmann 1930-5-16
Ericaceae A: 00350501 Arctostaphylos insularis Greene ex Parry USA: California Rocky ridge near Torrey Pines, Sante Rosa Is... Ralph Hoffmann 1930-4-8
A: 00350507 Arctostaphylos insularis Greene ex Parry USA: California Near Pelican Harbor, Santa Cruz Island Ralph Hoffmann 1930-6-14
A: 00362552 Arctostaphylos sp. USA: California [no additional data] Ralph Hoffmann 1930-4-18
A: 00362352 Arctostaphylos tomentosa Lindley USA: California Stony ridges in pines above Christy's, Santa... Ralph Hoffmann 1 1930-6-29
A: 00362365 Arctostaphylos tomentosa Lindley USA: California Basin below Mission Pine, San Rafael Mts. Ralph Hoffmann 3 1930-7-26
A: 00362658 Comarostaphylis diversifolia (Parry) Greene USA: California Santa Cruz Island, above Lady's Harbor Ralph Hoffmann 1930-4-12
Fabaceae A: 01963299 Acmispon dendroideus (Greene) Brouillet USA: California San Miguel Island Ralph Hoffmann 1930-4-10
A: 00366644 Lupinus albifrons Bentham USA: California Scattered along bank above Water Canyon, San... Ralph Hoffmann 1930-12-6
A: 00369118 Parosela fremontii saundersii J. F. Macbride USA: California W. of Victorville Ralph Hoffmann 1930-5-15
A: 00369118 Psorothamnus arborescens (Torrey ex A. Gray) Barneby USA: California W. of Victorville Ralph Hoffmann 1930-5-15
Fagaceae A: 00344648 Quercus chrysolepis Liebmann USA: California Ralph Hoffmann 1930-5-16
A: 00344697 Quercus dumosa Nuttall USA: California Santa Rosa Island Ralph Hoffmann 1930-9-7
A: 00344698 Quercus dumosa Nuttall USA: California Canyon at west end of Santa Rosa Island Ralph Hoffmann 1930-8-7
A: 00344699 Quercus dumosa Nuttall USA: California Black Mt. Santa Rosa Island Ralph Hoffmann 1930-7-7
A: 00343324 Quercus macdonaldii Greene USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00343732 Quercus parvula Greene USA: California near Pelican Harbor, Santa Cruz Island Ralph Hoffmann 1930-6-14
A: 00343727 Quercus wislizenii A. de Candolle USA: California above Christie's, Santa Cruz Island Ralph Hoffmann 1930-6-29
A: 00343732 Quercus wislizenii A. de Candolle USA: California near Pelican Harbor, Santa Cruz Island Ralph Hoffmann 1930-6-14
Garryaceae A: 00401754 Garrya flavescens S. Watson USA: California Bodfish Ralph Hoffmann 1930-4-20
Lamiaceae A: 00400378 Lepechinia fragrans (Greene) Epling USA: California Santa Rosa Island Ralph Hoffmann 1930-4-8
GH: 00403310 Salvia dorrii pilosa (A. Gray) Strachan & Reveal USA: California [illegible data] Ralph Hoffmann 1930-5-15
A: 00400921 Salvia mellifera Greene USA: California Santa Rosa Island Ralph Hoffmann 1930-4-8
A: 00403418 Salvia mellifera Greene USA: California Christie's, Santa Cruz Island Ralph Hoffmann 7 1930-6-28
A: 00403425 Salvia mellifera Greene USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00403426 Salvia mellifera Greene USA: California Santa Cruz Island, Cochics Prietos Ralph Hoffmann 1930-7-1
Malvaceae A: 00420427 Malacothamnus fasciculatus (Nuttall ex Torrey & A. Gray) Greene USA: California Island of Santa Cruz, Christie's Ralph Hoffmann 8 1930-6-28
Onagraceae GH: 00367778 Epilobium canum (Greene) P. H. Raven USA: California Valdez, Santa Cruz Island Ralph Hoffmann 1930-11-9
Orobanchaceae A: 01876944 Castilleja hololeuca Greene USA: California Hazard's, Santa Cruz Island Ralph Hoffmann 1930-4-7
Papaveraceae A: 00381364 Dendromecon harfordii Kellogg USA: California Santa Rosa Island Ralph Hoffmann 1930-4-8
A: 00381348 Dendromecon harfordii rhamnoides (Greene) Munz USA: California above Lady's Harbor, Santa Cruz Island Ralph Hoffmann 1930-4-12
A: 00381364 Dendromecon rigida Bentham USA: California Santa Rosa Island Ralph Hoffmann 1930-4-8
Plantaginaceae A: 00365690 Keckiella antirrhinoides microphylla (A. Gray) Straw USA: California Ralph Hoffmann 1930-5-15
A: 00365716 Keckiella cordifolia (Bentham) Straw USA: California Santa Rosa Island Ralph Hoffmann 1930-6-12
Poaceae GH: 00341174 Agrostis exarata Trinius USA: California Santa Cruz Island Ralph Hoffmann 49 1930-11-8
ECON: 00361772 Bromus catharticus Vahl USA: California Ralph Hoffmann 1930-3-20
GH: 00361904 Bromus rubens Linnaeus USA: California Valdez Harbor, Santa Cruz Island Ralph Hoffmann 53 1930-10-8
ECON: 00360194 Lolium multiflorum Lamarck USA: California Santa Barbara: Santa Barbara Ralph Hoffmann 1930-5-5
ECON: 00360179 Lolium perenne Linnaeus USA: California Santa Barbara: Santa Barbara Ralph Hoffmann 1930-5-5
ECON: 00360808 Poa pratensis Linnaeus USA: California Kernville Ralph Hoffmann 1930-4-28
GH: 00361090 Polypogon interruptus Kunth USA: California Santa Barbara: Valder Canyon, Santa Cruz Isl... Ralph Hoffmann 48 1930-10-9
GH: 00361090 Polypogon lutosus (Poiret) Hitchcock USA: California Santa Barbara: Valder Canyon, Santa Cruz Isl... Ralph Hoffmann 48 1930-10-9
Polygonaceae GH: 00369925 Chorizanthe spinosa S. Watson USA: California the eastern side of Muroc Dry Lake, northwes... Ralph Hoffmann 1930-5-19
GH: 01986426 Eriogonum ordii S. Watson USA: California [data not captured] Ralph Hoffmann 1930-6-6
GH: 01986427 Eriogonum ordii S. Watson USA: California [data not captured] Ralph Hoffmann 1930-6-7
GH: 01986428 Eriogonum ordii S. Watson USA: California [data not captured] Ralph Hoffmann 1930-6-7
GH: 00364707 Goodmania luteola (Parry) Reveal & Ertter USA: California in alkaline flats at Lancaster Ralph Hoffmann 1930-4-28
Ranunculaceae A: 00369593 Clematis ligusticifolia Nuttall USA: California Santa Cruz Island, Cochies [Coches] Prietos Ralph Hoffmann 1930-7-1
Rhamnaceae A: 00367885 Ceanothus arboreus Greene USA: California Lady's Harbor Santa Cruz Island Ralph Hoffmann 1930-4-12
A: 00367896 Ceanothus arboreus Greene USA: California Torrey Pines, Santa Rosa Island Ralph Hoffmann 1930-4-8
A: 00367896 Ceanothus arboreus glaber Jepson USA: California Torrey Pines, Santa Rosa Island Ralph Hoffmann 1930-4-8
A: 00349058 Ceanothus cuneatus (Hooker) Nuttall USA: California Bodfist Ralph Hoffmann 1930-4-28
A: 00349479 Ceanothus insularis Eastwood USA: California Santa Barbara: ridge above Pelican Harbor. S... Ralph Hoffmann 1930-6-15
A: 00425224 Ceanothus rigidus Nuttall USA: California 7 mi. w. of Buellton Ralph Hoffmann 1930-3-9
A: 00378446 Rhamnus crocea pirifolia (Greene) Little USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00378446 Rhamnus crocea insularis Sargent USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
Rosaceae A: 00346834 Amelanchier utahensis Koehne USA: California Prov. Mts. Ralph Hoffmann 1930-5-16
A: 01587540 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Willows Canyon, Santa Cruz I. Ralph Hoffmann 1930-6
A: 01587548 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 01587549 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Lady's Harbor, Santa Cruz Island Ralph Hoffmann 1930-4-11
A: 01587550 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California above Christie's, Santa Cruz Island Ralph Hoffmann 10 1930-6-29
A: 01587551 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California Dick's Harbor, Santa Cruz Island Ralph Hoffmann 1 1930-9-22
A: 01587568 Cercocarpus montanus blancheae (C. K. Schneider) F. L. Martin USA: California interior of Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 01587644 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California above Pine Canyon, Fillmore Ralph Hoffmann 5 1930-6-26
A: 01587701 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California Alamo Creek no. L. A. Co. Ralph Hoffmann A 1930-6-6
A: 01587785 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California Little Pine, San Rafael Mts. Ralph Hoffmann 4 1930-7-23
A: 00366015 Cercocarpus sp. USA: California Bodfish Ralph Hoffmann 1930-4-28
A: 00345604 Fallugia paradoxa (D. Don) Endlicher USA: California Canyon below spring. Prov. Mts. [Providence ... Ralph Hoffmann 1930-5-15
A: 00354962 Holodiscus discolor (Pursh) Maximowicz USA: California Cristy [Christy?], Santa Cruz Island Ralph Hoffmann 9 1930-6-29
A: 00345030 Holodiscus microphyllus Rydberg USA: California Prov. [Providence] mts. Ralph Hoffmann 1930-5-16
A: 00345036 Holodiscus microphyllus Rydberg USA: California Westgard Pass Ralph Hoffmann 1930-7-10
A: 00345091 Lyonothamnus floribundus A. Gray USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00346756 Prunus demissa (Nuttall) Walpers USA: California Ralph Hoffmann 1930-4-28
A: 00346600 Prunus ilicifolia (Nuttall ex Hooker & Arnott) D. N. F. Dietrich USA: California canyon above Lady's Harbor, Santa Cruz Isl. Ralph Hoffmann 1930-4-12
A: 00346650 Prunus ilicifolia lyonii (Eastwood) P. H. Raven USA: California Dick's Harbor, Santa Cruz I. Ralph Hoffmann 1930-12-1
A: 00346756 Prunus virginiana demissa (Nuttall) Torrey USA: California Ralph Hoffmann 1930-4-28
A: 00345924 Rosa californica Chamisso & Schlechtendal USA: California Bank of stream, Cochics [Coches] Priestos, S... Ralph Hoffmann 1930-7-1
Rubiaceae GH: 00385749 Galium angustifolium Nuttall ex A. Gray USA: California Fry's Harbor, Santa Cruz Isl. Ralph Hoffmann 1930-11-10
A: 00385772 Galium buxifolium Greene USA: California San Miguel Island Ralph Hoffmann 1930-6-11
Salicaceae A: 00382181 Populus balsamifera trichocarpa (Torrey & A. Gray) Brayshaw USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00382182 Populus balsamifera trichocarpa (Torrey & A. Gray) Brayshaw USA: California Hazard's Santa Cruz Island Ralph Hoffmann 1930-4-7
A: 00382181 Populus trichocarpa Torrey & A. Gray USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
A: 00382182 Populus trichocarpa Torrey & A. Gray USA: California Hazard's Santa Cruz Island Ralph Hoffmann 1930-4-7
A: 00383261 Salix laevigata Bebb USA: California Santa Cruz Island Ralph Hoffmann 1930-6-15
Saxifragaceae A: 00380168 Ribes divaricatum pubiflorum Koehne USA: California Oceano Ralph Hoffmann 1930-4-19
A: 00380171 Ribes divaricatum pubiflorum Koehne USA: California Carpinteria Ralph Hoffmann 1930-3-20
A: 00380453 Ribes menziesii Pursh USA: California Canyon Valley, Santa Cruz Island Ralph Hoffmann 1930-6-14