Amaranthaceae GH: 00404015 Amaranthus torreyi (A. Gray) Bentham ex S. Watson USA: California Coliseum Mine, Clark Mts., eastern Mohave De... J. C. Roos & A. R. Roos 4905 1950-8-5
Asteraceae GH: 01234046 Artemisia michauxiana Besser USA: California Summit Waucoba Mt. J. C. Roos & A. R. Roos 6555 1955-8-26
GH: 00404181 Brickellia microphylla (Nuttall) A. Gray USA: California Al Rose Canyon, Inyo Mts. J. C. Roos & A. R. Roos 6029 1953-8-14
GH: 00443029 Chaetadelpha wheeleri A. Gray ex S. Watson USA: California southeast end Eureka Valley J. C. Roos & A. R. Roos 6208 1954-8-13
GH: 02215672 Chaetopappa ericoides (Torrey) G. L. Nesom USA: California [data not captured] J. C. Roos & A. R. Roos 5986 1953-8-11
GH: 00387226 Chrysothamnus albidus (M. E. Jones ex A. Gray) Greene USA: California Lower Warm Spring, Saline Valley J. C. Roos & A. R. Roos 6224 1954-8-15
GH: 00387227 Chrysothamnus albidus (M. E. Jones ex A. Gray) Greene USA: California Lower Warm Spring, Saline Valley J. C. Roos & A. R. Roos 6224 1954-8-15
GH: 00387017 Chrysothamnus gramineus H. M. Hall USA: California on hill behind Blue Bell Mine, Badger Flat, ... J. C. Roos & A. R. Roos 5935 1953-8-8
GH: 02203400 Cuniculotinus gramineus (H. M. Hall) Urbatsch, R. P. Roberts & Neubig USA: California [data not captured] J. C. Roos & A. R. Roos 5945 1953-8-9
GH: 00387226 Ericameria albida (M. E. Jones ex A. Gray) L. C. Anderson USA: California Lower Warm Spring, Saline Valley J. C. Roos & A. R. Roos 6224 1954-8-15
GH: 00387227 Ericameria albida (M. E. Jones ex A. Gray) L. C. Anderson USA: California Lower Warm Spring, Saline Valley J. C. Roos & A. R. Roos 6224 1954-8-15
GH: 00387373 Ericameria discoidea (Nuttall) G. L. Nesom USA: California north shoulder Waucoba Mt., Inyo Mts. J. C. Roos & A. R. Roos 6552 1955-8-26
GH: 00417143 Ericameria gilmanii (S. F. Blake) G. L. Nesom USA: California The Narrows, Marble Canyon, Inyo Mts. J. C. Roos & A. R. Roos 6216 1954-8-14
GH: 00417203 Ericameria nana Nuttall USA: California Summit ridge of Last Chance Mts., 3.5 miles ... J. C. Roos & A. R. Roos 6538 1955-8-24
GH: 00417143 Haplopappus gilmanii S. F. Blake USA: California The Narrows, Marble Canyon, Inyo Mts. J. C. Roos & A. R. Roos 6216 1954-8-14
GH: 00387373 Haplopappus macronema A. Gray USA: California north shoulder Waucoba Mt., Inyo Mts. J. C. Roos & A. R. Roos 6552 1955-8-26
GH: 00417203 Haplopappus nanus (Nuttall) Eaton USA: California Summit ridge of Last Chance Mts., 3.5 miles ... J. C. Roos & A. R. Roos 6538 1955-8-24
GH: 00417918 Hazardia brickellioides (S. F. Blake) W. D. Clark USA: California West base Last Chance Mts. east of Eureka Va... J. C. Roos & A. R. Roos 6530 1955-8-23
GH: 00427611 Lepidospartum latisquamum S. Watson USA: California near Willow Spring, Last Chance Mts. J. C. Roos & A. R. Roos 6539 1955-8-24
GH: 00427271 Perityle megalocephala (S. Watson) J. F. Macbride USA: California behind Blue Bell Mine, Badger Flat, Inyo Mts... J. C. Roos & A. R. Roos 5958 1953-8-8
GH: 00427879 Tetradymia argyraea Munz & J. C. Roos USA: California 0.1 miles south of Tecopa Pass, Kingston Mts... J. C. Roos & A. R. Roos 4908 1950-8-6
GH: 00427880 Tetradymia argyraea Munz & J. C. Roos USA: California Coliseum Mine, Clark Mts., eastern Mohave De... J. C. Roos & A. R. Roos 4903 1950-8-5
Boraginaceae GH: 00096078 Cryptantha roosiorum Munz USA: California Crest of Inyo Mts., 3 mi east of Badger Flat... J. C. Roos & A. R. Roos 6015 1953-8-13
GH: 00424931 Cryptantha roosiorum Munz USA: California crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6150 1954-6-24
GH: 00424931 Oreocarya roosiorum (Munz) R. B. Kelley, Hasenstab & M. G. Simpson USA: California crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6150 1954-6-24
Brassicaceae GH: 00944422 Boechera sp. USA: California [data not captured] J. C. Roos & A. R. Roos 5962 1953-8-9
GH: 00948329 Boechera sparsiflora (Nuttall) Dorn USA: California near head of Tamarack Canyon, Inyo Mts. J. C. Roos & A. R. Roos 5962 1953-8-9
Caryophyllaceae GH: 01740977 Arenaria aculeata S. Watson USA: California 2.5 mi. E of Blue Bell Mine J. C. Roos & A. R. Roos 5997 1953-8-11
Chenopodiaceae GH: 00376344 Atriplex confertifolia (Torrey & Fremont) Watson USA: California Mazourka Canyon, Inyo Mts. J. C. Roos & A. R. Roos 5978 1953-8-10
GH: 00037210 Nitrophila mohavensis Munz & Roos USA: California Open flats of Amargosa Desert 3 miles northe... J. C. Roos & A. R. Roos 6140 1954-6-13
A: 00037211 Nitrophila mohavensis Munz & Roos USA: California Open flats of Amargosa Desert 3 miles northe... J. C. Roos & A. R. Roos 6140 1954-6-13
GH: 01783219 Oxybasis rubra (Linnaeus) S. Fuentes, Uotila & Borsch USA: California [data not captured] J. C. Roos & A. R. Roos 6567 1955-8-28
Fabaceae GH: 00366379 Astragalus platytropis A. Gray USA: California near head of Tamarack Canyon J. C. Roos & A. R. Roos 5961 1953-8-9
GH: 02177331 Lupinus munzii Eastwood USA: California [data not captured] J. C. Roos & A. R. Roos 6133 1954-6-12
Nyctaginaceae GH: 00376162 Abronia nana S. Watson USA: California ridges 1 to 3 miles east of Blue Bell Mine, ... J. C. Roos & A. R. Roos 5984 1953-8-11
GH: 00376162 Abronia nana covillei (Heimerl) Munz USA: California ridges 1 to 3 miles east of Blue Bell Mine, ... J. C. Roos & A. R. Roos 5984 1953-8-11
Onagraceae GH: 01625664 Camissonia heterochroma (S. Watson) P. H. Raven USA: California 0.4 miles north of The Narrows, Marble Canyo... J. C. Roos & A. R. Roos 6213 1954-8-14
Orobanchaceae GH: 00365881 Cordylanthus tecopensis Munz & J. C. Roos USA: California Amargosa desert 3 miles NE of Death Valley J... J. C. Roos & A. R. Roos 6139 1954-6-13
Poaceae GH: 00387453 Achnatherum bloomeri (Bolander) Barkworth USA: California Crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6014 1953-8-13
GH: 00361503 Achnatherum pinetorum (M. E. Jones) Barkworth USA: California Inyo Mts. near head of Tamarack Canyon J. C. Roos & A. R. Roos 5697 1953-8-9
GH: 00361504 Achnatherum pinetorum (M. E. Jones) Barkworth USA: California north face Wild Rose Peak, Panamint Mts. J. C. Roos & A. R. Roos 6136 1954-6-12
GH: 00365149 Elymus hansenii Scribner USA: California Crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6016 1953-8-13
GH: 00355757 Muhlenbergia arsenei Hitchcock USA: California 1 1/2 miles SW of Coliseum Mine, Clark Mts.,... J. C. Roos & A. R. Roos 4896 1950-8-5
GH: 00365149 Sitanion hansenii (Scribner) J. G. Smith USA: California Crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6016 1953-8-13
GH: 00361503 Stipa pinetorum M. E. Jones USA: California Inyo Mts. near head of Tamarack Canyon J. C. Roos & A. R. Roos 5697 1953-8-9
GH: 00361504 Stipa pinetorum M. E. Jones USA: California north face Wild Rose Peak, Panamint Mts. J. C. Roos & A. R. Roos 6136 1954-6-12
GH: 00387453 Stiporyzopsis bloomeri (Bolander) B. L. Johnson USA: California Crest of Inyo Mts. 3 miles east of Badger Fl... J. C. Roos & A. R. Roos 6014 1953-8-13
Polygonaceae GH: 02364070 Oxytheca dendroidea Nuttall USA: California [data not captured] J. C. Roos & A. R. Roos 6212 1954-8-14
Rosaceae GH: 01587285 Cercocarpus ledifolius intricatus (S. Watson) M. E. Jones USA: California Mazourka Canyon, Inyo Mts. J. C. Roos & A. R. Roos 5975 1953-8-10
