Acanthaceae A: 00424482 Beloperone californica Bentham USA: California Palm Springs M. L. Campbell 72 1921-3-19
A: 00424482 Justicia californica (Bentham) D. N. Gibson USA: California Palm Springs M. L. Campbell 72 1921-3-19
Aceraceae A: 00363478 Acer glabrum Torrey USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
Asteraceae GH: 01110038 Achillea borealis Bongard USA: California Mt. Tamalpais, Potrero M. L. Campbell 1919-6-15
A: 00414329 Ambrosia salsola (Torrey & A. Gray ex A. Gray) Stother & B. G. Baldwin USA: California Palm Springs M. L. Campbell 62 1921-3-19
A: 00414329 Hymenoclea salsola Torrey & A. Gray USA: California Palm Springs M. L. Campbell 62 1921-3-19
A: 00427589 Lepidospartum squamatum (A. Gray) A. Gray USA: California Palm Springs M. L. Campbell 28 1921-3-20
Caprifoliaceae A: 00422767 Lonicera conjugialis Kellogg USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
A: 00422792 Lonicera conjugialis Kellogg USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
A: 00386244 Sambucus microbotrys Rydberg USA: California Vidette Lake, Kings River Region M. L. Campbell 1916-7-25
A: 00386244 Sambucus racemosa Linnaeus USA: California Vidette Lake, Kings River Region M. L. Campbell 1916-7-25
Cephaloziellaceae FH: 00496703 Cephaloziella gracillima (Douin) Douin USA: California [data not captured] M. L. Campbell 1922-2-22
Cyperaceae GH: 00273550 Calliscirpus brachythrix (A. Gray) C. N. Gilmour, J. R. Starr & Naczi USA: California Vidette Meadows, Mount Whitney, Sierra Nevad... M. L. Campbell 1916-7-25
GH: 00273550 Eriophorum crinigerum (A. Gray) Beetle USA: California Vidette Meadows, Mount Whitney, Sierra Nevad... M. L. Campbell 1916-7-25
GH: 00273550 Scirpus criniger A. Gray USA: California Vidette Meadows, Mount Whitney, Sierra Nevad... M. L. Campbell 1916-7-25
Frullaniaceae FH: 00498067 Frullania bolanderi Austin USA: California [data not captured] M. L. Campbell 1922
FH: 00498133 Frullania californica (Austin ex Underwood) A. W. Evans USA: California [data not captured] M. L. Campbell 1922-2-17
Garryaceae A: 00401831 Garrya flavescens pallida (Eastwood) Dahling USA: California foothills near Yucaipa on road to Redlands M. L. Campbell 21 1921-3-22
Liliaceae GH: 00357624 Toxicoscordion fontanum (Eastwood) Zomlefer & Judd USA: California Mt. Tamalpais, Potrero, Marin County M. L. Campbell 1919-6-15
GH: 00357624 Zigadenus venenosus S. Watson USA: California Mt. Tamalpais, Potrero, Marin County M. L. Campbell 1919-6-15
Orthotrichaceae FH: 00458586 Orthotrichum persimile F. Lara, Raf. Medina & Garilleti USA: California Mill Valley: [no additional data] M. L. Campbell 2a 1923-1-5
Papaveraceae A: 00381430 Dendromecon rigida Bentham USA: California on the highway M. L. Campbell 119 1921-3-26
Plantaginaceae GH: 01811699 Veronica serpyllifolia Linnaeus USA: California [data not captured] M. L. Campbell 1920-6-26
Portulacaceae GH: 01858307 Cistanthe monosperma (Greene) Hershkovitz USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
Rhamnaceae A: 00425625 Ceanothus verrucosus Nuttall USA: California on the highway M. L. Campbell 116 1921-3-26
Rosaceae A: 01587691 Cercocarpus montanus glaber (S. Watson) F. L. Martin USA: California on road to Santa Barbara M. L. Campbell 129 1921-3-29
A: 00345805 Purshia tridentata (Pursh) de Candolle USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
A: 00345918 Rosa californica Chamisso & Schlechtendal USA: California Los Altos M. L. Campbell 1918-9
A: 00345919 Rosa californica Chamisso & Schlechtendal USA: California Los Altos M. L. Campbell 1918-9
Salicaceae A: 00382648 Salix exigua Nuttall USA: California Banning M. L. Campbell 36 1921-3-19
A: 00384042 Salix lasiandra Bentham USA: California San Francisco: Presidio M. L. Campbell 1919-2-22
A: 00383624 Salix lasiolepis Bentham USA: California Banning M. L. Campbell 35a 1921-3-19
A: 00383625 Salix lasiolepis Bentham USA: California Banning M. L. Campbell 358 1921-3-19
A: 00383684 Salix lasiolepis Bentham USA: California San Francisco: Presidio M. L. Campbell 1919-2-22
A: 00384513 Salix scouleriana Barratt ex Hooker USA: California San Francisco: Presidio M. L. Campbell 1919-2-22
Saxifragaceae A: 00380223 Ribes inebrians Lindley USA: California Fallen Leaf Lake M. L. Campbell 1920-6-26
A: 00380597 Ribes nevadense Kellogg USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
A: 00380821 Ribes roezlii Regel USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
A: 00381047 Ribes sp. USA: California Fallen Leaf Lake M. L. Campbell 1920-6-28
Simmondsiaceae A: 00376084 Simmondsia chinensis (Link) C. K. Schneider USA: California Chula Vista M. L. Campbell 1921-3-29
A: 00376084 Simmondsia sp. USA: California Chula Vista M. L. Campbell 1921-3-29
Zygophyllaceae A: 00347580 Covillea tridentata (Sessé & Moçiño ex de Candolle) Vail USA: California Palm Springs M. L. Campbell 61 1921-3-19
A: 00347580 Larrea tridentata (de Candolle) Coville USA: California Palm Springs M. L. Campbell 61 1921-3-19