Aristolochiaceae GH: 01682390 Asarum lemmonii S. Watson USA: California [data not captured] H. L. Mason 5705 1930-7
Asteraceae GH: 02141883 Anisocoma acaulis Torrey & A. Gray USA: California [data not captured] H. L. Mason 5579 1930-4-20
GH: 00386521 Brickellia californica (Torrey & A. Gray) A. Gray USA: California Banks of San Antonio River H. L. Mason 5770 1930-10-25
GH: 01831308 Hieracium argutum Nuttall USA: California [data not captured] H. L. Mason 5752 1930-10-25
GH: 01835721 Malacothrix saxatilis commutata (Torr. & A. Gray) R. S. Ferris USA: California [data not captured] H. L. Mason 5768 1930-10-25
Boraginaceae GH: 01957257 Amsinckia vernicosa Hooker & Arnott USA: California Hills between Mohave and Lancaster, Mohave D... H. L. Mason 5574 1930-4-20
Brassicaceae GH: 01181560 Boechera breweri (S. Watson) Al-Shehbaz USA: California Pinnacles H. L. Mason 5524 1930-3-30
Droseraceae GH: 01145169 Drosera rotundifolia Linnaeus USA: California Fort Bragg. H. L. Mason 5738 1930-8
Ericaceae GH: 00343975 Arbutus menziesii Pursh USA: California Headwaters of Arroyo Seco, Santa Lucia Mount... H. L. Mason 5751 1930-10-25
GH: 00362109 Arctostaphylos pungens Kunth USA: California Sandstone hills six miles east of Santa Luci... H. L. Mason 5764 1930-10-25
GH: 00363065 Rhododendron macrophyllum D. Don ex Don USA: California Fort Bragg H. L. Mason 5632 1930-6
Fabaceae GH: 02049826 Astragalus oxyphysus A. Gray USA: California San Benito River Canyon, fourteen miles belo... H. L. Mason 5541 1930-3-30
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
Lamiaceae 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
Linaceae GH: 00364896 Hesperolinon bicarpellatum (H. Sharsmith) H. Sharsmith USA: California Four miles east of MIddletown H. L. Mason 5689 1930-6
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: 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
Orobanchaceae GH: 00365643 Cordylanthus maritimus palustris (Behr) T. I. Chuang & Heckard USA: California Dillons Beach H. L. Mason 5670 1930-6
Polygonaceae GH: 00369968 Eriogonum argillosum J. T. Howell USA: California Canyon of the San Benito River, 14 miles sou... H. L. Mason 1930-3-30
Pucciniaceae FH: 01001602 Puccinia hydrocotyles (Montagne) Cooke USA: California Watsonville H. L. Mason 1930-9-10
Rhamnaceae GH: 00349747 Ceanothus leucodermis Greene USA: California Priest Valley H. L. Mason 5601 1930-4-21
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: 00425837 Rhamnus californica Eschscholtz USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5742 1930-10-25
Rosaceae GH: 01728785 Amelanchier pallida Greene USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5743 1930-10-25
GH: 00345638 Horkelia marinensis (Elmer) Crum USA: California Fort Bragg H. L. Mason 5741 1930-8
GH: 00345865 Rosa californica Chamisso & Schlechtendal USA: California Banks of the San Antonio River, in foothills... H. L. Mason 5774 1930-10-25
Saxifragaceae GH: 00363348 Bolandra californica A. Gray USA: California Blue Creek, near Hermit Springs, Sierra Neva... H. L. Mason 5708 1930-7
GH: 00363703 Boykinia elata (Nuttall) Greene USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5754 1930-10-25
GH: 00363703 Boykinia occidentalis Torrey & A. Gray USA: California Headwaters of the Arroyo Seco, Santa Lucia M... H. L. Mason 5754 1930-10-25
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
