Anacardiaceae GH: 00364971 Malosma laurina (Nuttall) Nuttall ex Abrams USA: California north side of Pigeon Pass, Box Springs Mts. J. C. Roos & L. Roos 6191 1954-7-10
GH: 00364971 Rhus laurina Nuttall USA: California north side of Pigeon Pass, Box Springs Mts. J. C. Roos & L. Roos 6191 1954-7-10
Asteraceae GH: 00386537 Brickellia desertorum Coville USA: California north base of Pigeon Pass, Box Springs Mts. J. C. Roos & L. Roos 4994 1950-9-30
GH: 00386538 Brickellia desertorum Coville USA: California east end Jurupa Hills near corner of Alta an... J. C. Roos & L. Roos 5006 1950-10-14
GH: 00387225 Chrysothamnus albidus (M. E. Jones ex A. Gray) Greene USA: California 1.4 miles south of Lower Warm Spring, Saline... J. C. Roos & L. Roos 6260 1954-11-23
GH: 00387228 Chrysothamnus albidus (M. E. Jones ex A. Gray) Greene USA: California Amargosa River bottomland 3 miles south of S... J. C. Roos & L. Roos 6232 1954-9-14
GH: 00417445 Chrysothamnus parryi asper (Greene) Hall & Clements USA: California southeast rim Reed Flat, White Mts. J. C. Roos & L. Roos 5114 1951-8-8
GH: 00387225 Ericameria albida (M. E. Jones ex A. Gray) L. C. Anderson USA: California 1.4 miles south of Lower Warm Spring, Saline... J. C. Roos & L. Roos 6260 1954-11-23
GH: 00387228 Ericameria albida (M. E. Jones ex A. Gray) L. C. Anderson USA: California Amargosa River bottomland 3 miles south of S... J. C. Roos & L. Roos 6232 1954-9-14
GH: 00387268 Ericameria bloomeri (A. Gray) J. F. Macbride USA: California Big Prospector Meadow, White Mts. J. C. Roos & L. Roos 5097 1951-8-8
GH: 00417445 Ericameria parryi aspera (Greene) G. L. Nesom & G. I. Baird USA: California southeast rim Reed Flat, White Mts. J. C. Roos & L. Roos 5114 1951-8-8
GH: 00387268 Haplopappus bloomeri A. Gray USA: California Big Prospector Meadow, White Mts. J. C. Roos & L. Roos 5097 1951-8-8
GH: 00427976 Hecastocleis shockleyi A. Gray USA: California crest of Grapevine Mts. above Leaderfield J. C. Roos & L. Roos 6094 1954-5-8
GH: 00417925 Heterotheca sessiliflora (Nuttall) Shinners USA: California [No Additional Data] J. C. Roos & L. Roos 4938 1950-8-19
GH: 01835539 Malacothrix clevelandii A. Gray USA: California [data not captured] J. C. Roos & L. Roos 6119 1954-5-15
Brassicaceae GH: 00378785 Arabis lemmonii S. Watson USA: California east face White Mtn. Peak, White Mts. J. C. Roos & L. Roos 5144 1951-8-10
GH: 00378785 Boechera lemmonii (S. Watson) W. A. Weber USA: California east face White Mtn. Peak, White Mts. J. C. Roos & L. Roos 5144 1951-8-10
GH: 01087272 Caulanthus crassicaulis S. Watson USA: California southwest slope Little Cowhorn Valley J. C. Roos & L. Roos 6168 1954-6-28
GH: 00379229 Draba californica (Jepson) Rollins & R. A. Price USA: California McAfee Meadow, White Mts. J. C. Roos & L. Roos 5136 1951-8-10
GH: 00379316 Draba oligosperma Hooker USA: California 1 miles SE of White Mtn. Peak, White Mts. J. C. Roos & L. Roos 5151 1951-8-10
GH: 00422039 Streptanthus cordatus Nuttall ex Torrey & A. Gray USA: California S.E. rim Reed Flat, Whtie Mts. J. C. Roos & L. Roos 5835 1952-7-27
Caryophyllaceae GH: 00376602 Arenaria kingii compacta (Coville) Maguire USA: California 1 mile north of Sheep Mtn., White Mts. J. C. Roos & L. Roos 5161 1951-8-10
Chenopodiaceae GH: 00376315 Atriplex canescens (Pursh) Nuttall USA: California dry flat 0.2 miles N.E. of Tecopa J. C. Roos & L. Roos 6041 1953-11-2
GH: 00376315 Atriplex canescens laciniata Parish USA: California dry flat 0.2 miles N.E. of Tecopa J. C. Roos & L. Roos 6041 1953-11-2
GH: 00376412 Atriplex lentiformis (Torrey) S. Watson USA: California corner of Victoria and Lynwood Dr. north of ... J. C. Roos & L. Roos 6251 1954-9-25
GH: 00376423 Atriplex lentiformis (Torrey) S. Watson USA: California 237 S. Waterman J. C. Roos & L. Roos 6252 1954-10-2
GH: 01781482 Blitum nuttallianum Schultes USA: California [data not captured] J. C. Roos & L. Roos 5852 1952-7-28
GH: 01783026 Nitrophila mohavensis Munz & Roos USA: California [data not captured] J. C. Roos & L. Roos 6234 1954-9-14
GH: 01783025 Nitrophila mohavensis Munz & Roos USA: California [data not captured] J. C. Roos & L. Roos 6079 1954-5-7
GH: 01785273 Stutzia covillei (J. F. Macbride) E. H. Zacharias USA: California [data not captured] J. C. Roos & L. Roos 6074 1954-5-6
GH: 01785515 Suaeda depressa erecta S. Watson USA: California [data not captured] J. C. Roos & L. Roos 6236 1954-9-14
Fabaceae GH: 02177332 Lupinus munzii Eastwood USA: California [data not captured] J. C. Roos & L. Roos 5109 1951-8-8
GH: 00369106 Oxytropis parryi A. Gray USA: California 1 mile north of Sheep Mtn., White Mts. J. C. Roos & L. Roos 5160 1951-8-10
GH: 00369311 Trifolium andersonii monoense (Greene) Gillett USA: California North rim Reed Flat, White Mts. J. C. Roos & L. Roos 5110 1951-8-8
GH: 00369311 Trifolium monoense Greene USA: California North rim Reed Flat, White Mts. J. C. Roos & L. Roos 5110 1951-8-8
Gentianaceae GH: 00384941 Frasera puberulenta Davidson USA: California east side Reed Flat at head of Birch Creek, ... J. C. Roos & L. Roos 5824 1952-7-26
Loasaceae GH: 00424439 Petalonyx nitidus S. Watson USA: California Loretto Road, west side Eureka Valley, Inyo ... J. C. Roos & L. Roos 6169 1954-6-28
Orobanchaceae GH: 00365875 Cordylanthus tecopensis Munz & J. C. Roos USA: California Tecopa Hot Springs J. C. Roos & L. Roos 4929 1950-8-7
A: 00365876 Cordylanthus tecopensis Munz & J. C. Roos USA: California between Tecopa and Tecopa Hot Springs. J. C. Roos & L. Roos 6243 1954-9-15
GH: 00365877 Cordylanthus tecopensis Munz & J. C. Roos USA: California Tecopa Hot Springs J. C. Roos & L. Roos 4929 1950-8-7
GH: 00365879 Cordylanthus tecopensis Munz & J. C. Roos USA: California flats along Amargosa River bottom 3 miles so... J. C. Roos & L. Roos 6231 1954-9-14
GH: 00365880 Cordylanthus tecopensis Munz & J. C. Roos USA: California between Tecopa and Tecopa Hot Springs. J. C. Roos & L. Roos 6243 1954-9-15
GH: 00365882 Cordylanthus tecopensis Munz & J. C. Roos USA: California open flats along Amargosa River 3 miles sout... J. C. Roos & L. Roos 6033 1953-10-31
Plantaginaceae GH: 00367431 Penstemon heterodoxus A. Gray USA: California McAfee Meadow, White Mts. J. C. Roos & L. Roos 5135 1951-8-10
GH: 00367548 Penstemon scapoides D. D. Keck USA: California east side Reed Flat, White Mts. J. C. Roos & L. Roos 5122 1951-8-9
Poaceae GH: 00361556 Achnatherum webberi (Thurber) Barkworth USA: California between Westgaard [Westgard] Pass and Reed F... J. C. Roos & L. Roos 5819 1952-7-25
GH: 00341024 Ectosperma alexandrae Swallen USA: California north slope of sand dunes at SE end Eureka V... J. C. Roos & L. Roos 6175 1954-6-28
GH: 00361556 Oryzopsis webberi (Thurber) Bentham ex Vasey USA: California between Westgaard [Westgard] Pass and Reed F... J. C. Roos & L. Roos 5819 1952-7-25
GH: 00341024 Swallenia alexandrae (Swallen) Soderstrom & H. F. Decker USA: California north slope of sand dunes at SE end Eureka V... J. C. Roos & L. Roos 6175 1954-6-28
Polemoniaceae GH: 01083748 Aliciella ripleyi (Barneby) J. M. Porter USA: California Emigrant Canyon, Panamint Mts. J. C. Roos & L. Roos 6107 1954-5-9
Polygonaceae GH: 00364246 Eriogonum heermannii humilius (S. Stokes) Reveal USA: California Wild Rose Canyon, Panamint Mountains J. C. Roos & L. Roos 2830 1947-7-15
GH: 02364071 Oxytheca dendroidea Nuttall USA: California [data not captured] J. C. Roos & L. Roos 6166 1954-6-27
