Amaranthaceae GH: 01930702 Tidestromia lanuginosa eliassoniana Sánchez-del Pino & Flores Olvera USA: Arizona 10 miles southeast of Tucson R. C. Rollins & T. S. Chambers 2740 1938-9-3
Asteraceae GH: 02579049 Acourtia nana (A. Gray) Reveal & R. M. King USA: Texas 6 miles west of Sierra Blanca R. C. Rollins & T. S. Chambers 2756 1938-9-5
GH: 02141007 Agoseris aurantiaca aurantiaca USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2684 1938-8-5
GH: 00968562 Artemisia candicans Rydberg USA: Washington south side of Constance Pass, 4 miles north ... R. C. Rollins & T. S. Chambers 2679 1938-8-5
GH: 00386789 Baccharis pilularis de Candolle USA: California steep slope near the ocean, 5 miles south of... R. C. Rollins & T. S. Chambers 2728 1938-8-21
GH: 02214905 Bellis perennis Linnaeus USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2716 1938-8-13
GH: 00387086 Corethrogyne filaginifolia (Hooker & Arnott) Nuttall USA: California 10 miles west of Alpine, San Diego-El Centro R. C. Rollins & T. S. Chambers 2738 1938-9-2
GH: 00414912 Eriophyllum confertiflorum (de Candolle) A. Gray USA: California 5 miles south of Big Sur R. C. Rollins & T. S. Chambers 2730 1938-8-21
GH: 02587163 Grindelia hirsutula Hooker & Arnott Canada: British Columbia Vancouver Island: [data not captured] R. C. Rollins & T. S. Chambers 2691 1938-8-7
GH: 00417822 Gutierrezia sarothrae (Pursh) Britton & Rusby USA: California 10 miles west of Alpine, between San Diego a... R. C. Rollins & T. S. Chambers 2739 1938-9-2
GH: 01831260 Hieracium albiflorum Hooker USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2685 1938-8-5
GH: 01831728 Hieracium gracile Hooker USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2620 1938-7-31
Berberidaceae GH: 02169326 Mahonia nervosa (Pursh) Nuttall Canada: British Columbia Vancouver Island: near Shawnigan Lake R. C. Rollins & T. S. Chambers 2689 1938-8-7
Betulaceae GH: 02194401 Betula occidentalis Hooker USA: Nevada along South Twin River, near the mouth of th... R. C. Rollins & T. S. Chambers 2537 1938-7-10
Boraginaceae GH: 01957168 Amsinckia tessellata A. Gray USA: Nevada Jet Creek watershed, Toiyabe Mountains, 15 m... R. C. Rollins & T. S. Chambers 2513 1938-7-11
GH: 01993243 Heliotropium confertifolium (Torrey) Torrey ex A. Gray USA: Texas 15 miles west of Langtry R. C. Rollins & T. S. Chambers 2782 1938-9-7
GH: 02059926 Oreocarya cinerea Greene USA: Arizona 6 miles east of Flagstaff R. C. Rollins & T. S. Chambers 2429 1938-7-4
GH: 02060012 Oreocarya cinerea Greene USA: Utah Red Canyon, 16 miles west of Bryce's Canyon R. C. Rollins & T. S. Chambers 2449 1938-7-6
GH: 02060007 Oreocarya cinerea Greene USA: Arizona Bright Angel Point, north rim of the Grand C... R. C. Rollins & T. S. Chambers 2444 1938-7-6
GH: 02061149 Oreocarya setosissima (A. Gray) Greene USA: Arizona near Bright Angel Point, north rim of the Gr... R. C. Rollins & T. S. Chambers 2441 1938-7-6
GH: 02144105 Tiquilia latior (I. M. Johnston) A. T. Richardson USA: Arizona 5 miles south of the Navajo Bridge over the ... R. C. Rollins & T. S. Chambers 2433 1938-7-5
Brassicaceae GH: 00018791 Arabis fendleri (S. Watson) Greene USA: Nevada 15 miles west of Round Mountain, Toiyabe Mou... R. C. Rollins & T. S. Chambers 2512 1938-7-11
GH: 00018655 Arabis fernaldiana Rollins USA: Nevada Eastern slope of Toiyabe Dome, Toiyabe Mount... R. C. Rollins & T. S. Chambers 2526 1938-7-13
GH: 00974365 Arabis hirsuta glabrata Torrey & A. Gray USA: Nevada near Lamoille Creek, mouth of Thomas Canyon,... R. C. Rollins & T. S. Chambers 2560 1938-7-16
GH: 00974371 Arabis hirsuta glabrata Torrey & A. Gray USA: Nevada Lamoille Canyon between Lamoille Creek and V... R. C. Rollins & T. S. Chambers 2564 1938-7-17
GH: 00018791 Arabis schistacea Rollins USA: Nevada 15 miles west of Round Mountain, Toiyabe Mou... R. C. Rollins & T. S. Chambers 2512 1938-7-11
GH: 00974733 Barbarea orthoceras Ledebour USA: Nevada bank of Lehman Creek, east of Mount Wheeler,... R. C. Rollins & T. S. Chambers 2474 1938-7-8
GH: 01181833 Boechera demissa pendulina (Greene) N. H. Holmgren USA: Nevada near Lehman Creek, east of Mt. Wheeler, Snak... R. C. Rollins & T. S. Chambers 2469 1938-7-8
GH: 01153871 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Colorado 3 miles south of Milners Pass, Rocky Mountai... R. C. Rollins & T. S. Chambers 2401 1938-6-30
GH: 00932256 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Nevada at head of Lamoille Creek, about 15 miles so... R. C. Rollins & T. S. Chambers 2546 1938-7-16
GH: 01153928 Boechera fendleri (S. Watson) W. A. Weber USA: Arizona 6 miles east of Flagstaff R. C. Rollins & T. S. Chambers 2811 1938-7-5
GH: 01153951 Boechera fendleri spatifolia (Rydberg) W. A. Weber USA: Colorado 4 miles west of Estes Park, Rocky Mountain N... R. C. Rollins & T. S. Chambers 2399 1938-6-29
GH: 00018655 Boechera fernaldiana (Rollins) W. A. Weber USA: Nevada Eastern slope of Toiyabe Dome, Toiyabe Mount... R. C. Rollins & T. S. Chambers 2526 1938-7-13
GH: 00932411 Boechera fernaldiana (Rollins) W. A. Weber USA: Nevada between Lamoille Creek , and Verdis Peak, ab... R. C. Rollins & T. S. Chambers 2570 1938-7-17
GH: 00932734 Boechera holboelii pinetorum (Tidestrom) Dorn USA: Nevada 2 miles south of Lehman Creek, near base of ... R. C. Rollins & T. S. Chambers 2485 1938-7-8
GH: 00946167 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada alpine peak east of Mt. Wheeler, Snake Range R. C. Rollins & T. S. Chambers 2477 1938-7-9
GH: 00946170 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada above Liberty Pass, headwaters of Lamoille C... R. C. Rollins & T. S. Chambers 2554 1938-7-16
GH: 00946190 Boechera lemmonii (S. Watson) W. A. Weber USA: Nevada Toiyabe Dome, Toiyabe Mountains R. C. Rollins & T. S. Chambers 2522 1938-7-13
GH: 00946275 Boechera lignifera (A. Nelson) W. A. Weber USA: Nevada near South Twin Creek, eastern base of Toiya... R. C. Rollins & T. S. Chambers 2519 1938-7-13
GH: 00946412 Boechera lyallii (S. Watson) Dorn USA: Nevada head of Lamoille Creek, about 15 miles south... R. C. Rollins & T. S. Chambers 2547 1938-7-16
GH: 00946423 Boechera lyallii (S. Watson) Dorn USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2633 1938-7-31
GH: 00946493 Boechera microphylla (Nuttall) Dorn USA: Nevada near South Twin River, 6 miles west of canyo... R. C. Rollins & T. S. Chambers 2530 1938-7-13
GH: 01155085 Boechera perennans (S. Watson) W. A. Weber USA: Arizona Bright Angel Point, Grand Canyon National Pa... R. C. Rollins & T. S. Chambers 2442 1938-7-6
GH: 00960060 Boechera puberula (Nuttall) Dorn USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2509 1938-7-11
GH: 01155131 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado 3 miles south of Milners Pass, Rocky Mt Nati... R. C. Rollins & T. S. Chambers 2402 1938-6-30
GH: 00960970 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2579 1938-7-19
GH: 00960972 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2488 1938-7-10
GH: 00960975 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2470 1938-7-8
GH: 00960976 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2548 1938-7-16
GH: 00960978 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2511 1938-7-11
GH: 00948008 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2546a 1938-7-16
GH: 00948054 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2599 1938-7-29
GH: 00018791 Boechera schistacea (Rollins) Dorn USA: Nevada 15 miles west of Round Mountain, Toiyabe Mou... R. C. Rollins & T. S. Chambers 2512 1938-7-11
GH: 00944311 Boechera sp. USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2632 1938-7-31
GH: 00948954 Boechera stricta (Graham) Al-Shehbaz USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2486 1938-7-8
GH: 00948957 Boechera stricta (Graham) Al-Shehbaz USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2545 1938-7-16
GH: 00948958 Boechera stricta (Graham) Al-Shehbaz USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2547a 1938-7-16
GH: 00944046 Boechera stricta (Graham) Al-Shehbaz USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2652 1938-8-4
GH: 00983121 Cardamine cordifolia A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2473 1938-7-8
GH: 01087403 Caulanthus crassicaulis glaber M. E. Jones USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2494 1938-7-10
GH: 01087507 Caulanthus major (M. E. Jones) Payson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2503 1938-7-10
GH: 01087571 Caulanthus pilosus S. Watson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2496 1938-7-10
GH: 01155658 Dimorphocarpa wislizenii (J. Engleman) Rollins USA: Arizona 10 miles southeast of Holbrook R. C. Rollins & T. S. Chambers 2426 1938-7-4
GH: 01084605 Dimorphocarpa wislizenii (J. Engleman) Rollins USA: New Mexico 15 miles west of Albuquerque R. C. Rollins & T. S. Chambers 2417 1938-7-3
GH: 00018998 Draba arida C. L. Hitchcock USA: Nevada Rocky eastern slope of Toiyabe Dome, Toiyabe... R. C. Rollins & T. S. Chambers 2527 1938-7-13
GH: 01155857 Draba asprella Greene USA: Arizona near Bright Angel Point, Grand Canyon Nation... R. C. Rollins & T. S. Chambers 2445 1938-7-6
GH: 01103720 Draba breweri S. Watson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2479 1938-7-9
GH: 01103721 Draba breweri S. Watson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2479 1938-7-9
GH: 00971420 Draba oligosperma Hooker USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2557 1938-7-16
GH: 00971425 Draba oligosperma Hooker USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2574 1938-7-17
GH: 01561194 Draba sphaeroides Payson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2569 1938-7-16
GH: 01561195 Draba sphaeroides Payson USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2558 1938-7-16
GH: 01561935 Erysimum capitatum (Douglas ex Hooker) Greene USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2533 1938-7-13
GH: 01538134 Erysimum capitatum (Douglas ex Hooker) Greene USA: Utah near Bryce Canyon R. C. Rollins & T. S. Chambers 2450 1938-7-7
GH: 01540497 Hesperidanthus linearifolius (A. Gray) Rydberg USA: New Mexico Raton Pass, 2 miles north of Raton R. C. Rollins & T. S. Chambers 2409 1938-7-1
GH: 01546670 Lepidium alyssoides A. Gray USA: New Mexico near Blue Water Lake, foothills of the Zuni ... R. C. Rollins & T. S. Chambers 2419 1938-7-3
GH: 01546697 Lepidium alyssoides angustifolium (C. L. Hitchcock) Rollins USA: New Mexico near Las Cruces R. C. Rollins & T. S. Chambers 2752 1938-9-4
GH: 01549130 Lepidium montanum cinereum (C. L. Hitchcock) Rollins USA: Arizona 2 miles south of House Rock R. C. Rollins & T. S. Chambers 2435 1938-7-5
GH: 01549627 Lepidium thurberi Wooton USA: Arizona 2 miles west of Bowie R. C. Rollins & T. S. Chambers 2747 1938-9-4
GH: 01550413 Nerisyrenia camporum (A. Gray) Greene USA: Texas 6 miles north of the Rio Grande River, Big B... R. C. Rollins & T. S. Chambers 2767 1938-9-6
GH: 01550445 Nerisyrenia camporum (A. Gray) Greene USA: Texas 6 mi. no. Rio Grande River, Big Bend State P... R. C. Rollins & T. S. Chambers 2767 1938-9-6
GH: 00019423 Physaria chambersii Rollins USA: Nevada Dry slope on the watershed of Jet Canyon Cre... R. C. Rollins & T. S. Chambers 2502 1938-7-11
GH: 00019433 Physaria chambersii membranacea Rollins USA: Utah Red Canyon, 16 miles west of Bryce's Canyon R. C. Rollins & T. S. Chambers 2448 1938-7-6
GH: 01575769 Physaria floribunda Rydberg USA: New Mexico 10 miles east of Taos R. C. Rollins & T. S. Chambers 2414 1938-7-1
GH: 00019433 Physaria lepidota membranacea (Rollins) Rollins USA: Utah Red Canyon, 16 miles west of Bryce's Canyon R. C. Rollins & T. S. Chambers 2448 1938-7-6
GH: 01716641 Stanleya pinnata (Pursh) Britton USA: Arizona 25 miles southeast of Holbrook R. C. Rollins & T. S. Chambers 1938-7-4
GH: 01716648 Stanleya pinnata (Pursh) Britton USA: Arizona 10 miles west of Winslow R. C. Rollins & T. S. Chambers 2427 1938-7-4
GH: 01716671 Stanleya pinnata (Pursh) Britton USA: Colorado 18 miles north of Walsenburg R. C. Rollins & T. S. Chambers 2407 1938-7-1
GH: 01716749 Stanleya pinnata (Pursh) Britton USA: Utah Wah Wah Mts., 35 miles west of Milford R. C. Rollins & T. S. Chambers 2462 1938-7-8
GH: 01716761 Stanleya pinnata (Pursh) Britton USA: Utah 5 miles northeast of Paragonals R. C. Rollins & T. S. Chambers 2458 1938-7-7
GH: 01733081 Turritis glabra Linnaeus USA: Idaho near Cascade R. C. Rollins & T. S. Chambers 2595 1938-7-24
Caesalpiniaceae GH: 01852464 Chamaecrista nictitans (Linnaeus) Moench USA: Alabama 15 miles east of Tuscaloosa. R. C. Rollins & T. S. Chambers 2788 1938-9-10
Caryophyllaceae GH: 01752567 Silene laciniata greggii (A. Gray) C. L. Hitchcock & Maguire USA: Texas Chisos Mountains, Big Bend State Park R. C. Rollins & T. S. Chambers 2776 1938-9-6
Crassulaceae GH: 01991737 Sedum oreganum Nuttall ex Torrey & A. Gray USA: Oregon Cape Perpetua R. C. Rollins & T. S. Chambers 2715 1938-8-13
GH: 01990220 Sedum spathulifolium pruinosum (Britton) R. T. Clausen & C. H. Uhl USA: Washington near Constance Creek, south slope of Mount C... R. C. Rollins & T. S. Chambers 2658 1938-8-4
Cupressaceae GH: 00356069 Cupressus macrocarpa Hartweg USA: California near the sea-coast, Point Lobos, Monterey Co... R. C. Rollins & T. S. Chambers 2725 1938-8-20
Ericaceae GH: 01117468 Arctostaphylos nevadensis A. Gray USA: Oregon near Anthony Lake, Blue Mountains R. C. Rollins & T. S. Chambers 2597 1938-7-30
GH: 00350858 Arctostaphylos patula Greene USA: California 3 miles south of Weed R. C. Rollins & T. S. Chambers 2722 1938-8-15
GH: 01117584 Arctostaphylos patula Greene USA: Utah Bryce Canyon National Park R. C. Rollins & T. S. Chambers 2451 1938-7-7
GH: 01117667 Arctostaphylos pungens Kunth USA: Arizona Bright Angel Point, Grand Canyon National Pa... R. C. Rollins & T. S. Chambers 2443 1938-7-6
GH: 01536043 Arctostaphylos tomentosa Lindley USA: Washington south side of Constance Pass, 3 miles north ... R. C. Rollins & T. S. Chambers 2667 1938-8-5
GH: 01537278 Cassiope mertensiana gracilis Piper USA: Oregon Gunsight Peak, near Anthony Lake, Blue Mount... R. C. Rollins & T. S. Chambers 2629 1938-7-31
GH: 01562424 Chimaphila umbellata occidentalis (Rydberg) S. F. Blake USA: Oregon near Anthony Lake, Blue Mountains R. C. Rollins & T. S. Chambers 2601 1938-7-30
GH: 01592273 Gaultheria shallon Pursh USA: Washington south slope of Constance Pass, 3 miles north... R. C. Rollins & T. S. Chambers 2668 1938-8-5
GH: 01719356 Monotropa hypopitys Linnaeus USA: Washington 3 miles north of the Dosewallips River, sout... R. C. Rollins & T. S. Chambers 2687 1938-8-5
GH: 01683213 Phyllodoce empetriformis (Smith) D. Don USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2613 1938-7-30
GH: 01683255 Phyllodoce empetriformis (Smith) D. Don USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2640 1938-8-2
GH: 01761998 Pyrola picta Smith USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2602 1938-7-30
GH: 01762139 Rhododendron albiflorum Hooker USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2634 1938-7-31
Euphorbiaceae GH: 00047727 Euphorbia polycarpa simulans L. C. Wheeler USA: Texas Near the Rio Grande River, mouth of Santa He... R. C. Rollins & T. S. Chambers 2770 1938-9-6
GH: 00047726 Euphorbia polycarpa simulans L. C. Wheeler USA: Texas Near the Rio Grande River, mouth of Santa He... R. C. Rollins & T. S. Chambers 2770 1938-9-6
Fabaceae GH: 00366612 Acmispon glaber (Vogel) Brouillet USA: California near the ocean, 5 miles south of Big Sur R. C. Rollins & T. S. Chambers 2727 1938-8-21
GH: 01967235 Acmispon wrightii (A. Gray) Brouillet USA: Arizona 6 miles east of Flagstaff R. C. Rollins & T. S. Chambers 2431 1938-7-5
GH: 02064600 Astragalus beckwithii Torrey & A. Gray USA: Nevada near South Twin River, 6 miles west of the c... R. C. Rollins & T. S. Chambers 2534 1938-7-10
GH: 02052129 Astragalus kentrophyta implexus (Canby) Barneby USA: Nevada on the east shoulder of Mount Wheeler, Snake... R. C. Rollins & T. S. Chambers 2482 1938-7-8
GH: 02049714 Astragalus nuttallii (Torrey & A. Gray) J. T. Howell USA: California Point Joe, Monterey Peninsula R. C. Rollins & T. S. Chambers 2724 1938-8-20
GH: 02049788 Astragalus oophorus S. Watson USA: Nevada in the Toiyabe Mountains, 15 miles west of R... R. C. Rollins & T. S. Chambers 2516 1938-7-10
GH: 01960131 Desmodium perplexum B. G. Schubert USA: Georgia 10 miles southwest of Chatanooga, Tennessee R. C. Rollins & T. S. Chambers 2789 1938-9-10
GH: 01958169 Hedysarum boreale Nuttall USA: Utah Bryce Canyon R. C. Rollins & T. S. Chambers 2453 1938-7-7
GH: 02087895 Lespedeza virginica (Linnaeus) Britton USA: Alabama 15 miles east of Tuscaloosa R. C. Rollins & T. S. Chambers 2786 1938-9-10
GH: 00366612 Lotus scoparius Nuttall USA: California near the ocean, 5 miles south of Big Sur R. C. Rollins & T. S. Chambers 2727 1938-8-21
GH: 02129300 Lupinus sp. USA: Utah 8 miles east of Paragonah R. C. Rollins & T. S. Chambers 2457 1938-7-7
GH: 02136389 Strophostyles umbellata (Muhlenberg ex Willdenow) Britton USA: Alabama [data not captured] R. C. Rollins & T. S. Chambers 2787 1938-9-10
GH: 00063402 Trifolium rollinsii J. M. Gillett USA: Nevada Rocky eastern slope of Toiyabe Dome, Toiyabe... R. C. Rollins & T. S. Chambers 2526 1938-7-13
Gentianaceae GH: 02069781 Frasera montana Mulford USA: Idaho Near Warm Lake, 28 miles northeast of Cascad... R. C. Rollins & T. S. Chambers 2587 1938-7-22
Juncaceae GH: 02400624 Juncus mertensianus Bongard USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2566 1938-7-16
GH: 02397150 Juncus tenuis Willdenow USA: Tennessee [data not captured] R. C. Rollins & T. S. Chambers 2793 1938-9-11
Linaceae GH: 02053055 Linum kingii S. Watson USA: Utah Bryce Canyon National Park R. C. Rollins & T. S. Chambers 2455 1938-7-7
Lobeliaceae GH: 01799005 Lobelia siphilitica Linnaeus USA: North Carolina between Topton and Bryson City R. C. Rollins & T. S. Chambers 2797 1938-9-11
Malvaceae GH: 02199699 Sphaeralcea digitata (Greene) Rydberg USA: New Mexico Continental Divide, 3 miles west of Thoreau R. C. Rollins & T. S. Chambers 2422 1938-7-4
Mimosaceae GH: 01680495 Acacia constricta Bentham USA: Arizona 25 miles east of Tucson R. C. Rollins & T. S. Chambers 2741 1938-9-3
GH: 01992157 Prosopis glandulosa Torrey USA: Texas 4 miles west of Brackettville R. C. Rollins & T. S. Chambers 2783 1938-9-7
GH: 01992402 Prosopis velutina Wooton USA: Arizona 25 miles east of Tucson R. C. Rollins & T. S. Chambers 2742 1938-9-3
Nyctaginaceae GH: 01642275 Abronia ammophila Greene USA: New Mexico 10 miles west of Gallup R. C. Rollins & T. S. Chambers 2423 1938-7-4
GH: 01641305 Boerhavia gracillima Heimerl USA: Texas near the Rio Grande River, at the mouth of S... R. C. Rollins & T. S. Chambers 2771 1938-9-6
GH: 01641284 Boerhavia intermedia M. E. Jones USA: Texas near the Rio Grande River, at the mouth of t... R. C. Rollins & T. S. Chambers 2772 1938-9-6
GH: 01846582 Nyctaginia capitata Choisy USA: Texas 25 miles west of Sanderson R. C. Rollins & T. S. Chambers 2780 1938-9-6
Onagraceae GH: 01625021 Calylophus tubiculus (A. Gray) P. H. Raven USA: Texas 6 miles south of Marathon R. C. Rollins & T. S. Chambers 2766 1938-9-6
Orchidaceae AMES: 01938172 Corallorhiza maculata (Rafinesque) Rafinesque USA: Nevada slope of Mount Wheeler, 2 miles south of Leh... R. C. Rollins & T. S. Chambers 2487 1938-7-8
GH: 01938171 Corallorhiza maculata (Rafinesque) Rafinesque USA: Nevada slope of Mount Wheeler, 2 miles south of Leh... R. C. Rollins & T. S. Chambers 2487 1938-7-8
GH: 01938497 Corallorhiza mertensiana Bongard USA: Washington near Constance Creek, lower slope of Mount C... R. C. Rollins & T. S. Chambers 2645 1938-8-4
AMES: 01938488 Corallorhiza mertensiana Bongard USA: Washington near Constance Creek, lower slope of Mount C... R. C. Rollins & T. S. Chambers 2645 1938-8-4
AMES: 02063629 Platanthera dilatata (Pursh) Lindley ex Beck USA: Oregon near Anthony Lake, Blue Mountains R. C. Rollins & T. S. Chambers 2616 1938-7-31
AMES: 02063633 Platanthera dilatata (Pursh) Lindley ex Beck USA: Oregon near Anthony Lake, Blue Mountains R. C. Rollins & T. S. Chambers 2313 1938-7-31
Plantaginaceae GH: 02001435 Nothochelone nemorosa (Douglas) Straw USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2664 1938-8-4
GH: 02002339 Penstemon attenuatus Douglas ex Lindley USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2615 1938-7-31
GH: 02002396 Penstemon attenuatus pseudoprocerus (Rydberg) Cronquist USA: Idaho [data not captured] R. C. Rollins & T. S. Chambers 2584 1938-7-22
GH: 02002728 Penstemon barbatus torreyi (Bentham) A. Gray USA: Texas Chisos Mountains, Big Bend State Park R. C. Rollins & T. S. Chambers 2778 1938-9-6
GH: 02002904 Penstemon bridgesii A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2500 1938-7-10
GH: 02118364 Penstemon comarrhenus A. Gray USA: Utah 7 miles northeast of Paragonah R. C. Rollins & T. S. Chambers 2459 1938-7-7
GH: 02118560 Penstemon crandallii glabrescens (Pennell) C. C. Freeman USA: New Mexico 15 miles east of Taos R. C. Rollins & T. S. Chambers 2412 1938-7-1
GH: 02118693 Penstemon cyathophorus Rydberg USA: Colorado 10 miles east of Grand Lake R. C. Rollins & T. S. Chambers 2403 1938-6-30
GH: 02118771 Penstemon davidsonii menziesii (D. D. Keck) Cronquist USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2701 1938-8-9
GH: 02118856 Penstemon deustus Douglas USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2491 1938-7-8
GH: 02119210 Penstemon eatonii A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2468 1938-7-8
GH: 02119550 Penstemon fruticosus (Pursh) Greene USA: Idaho [data not captured] R. C. Rollins & T. S. Chambers 2586 1938-7-22
GH: 02120452 Penstemon humilis Nuttall ex A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2487 1938-7-8
GH: 02120445 Penstemon humilis Nuttall ex A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2572 1938-7-16
GH: 02120571 Penstemon keckii Clokey USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2484 1938-7-8
GH: 02120974 Penstemon linarioides sileri A. Gray USA: Arizona 3 miles north of Jacobs Lake R. C. Rollins & T. S. Chambers 2437 1938-7-5
GH: 02121236 Penstemon oliganthus Wooton & Standley USA: New Mexico 15 miles east of Taos R. C. Rollins & T. S. Chambers 2413 1938-7-1
GH: 02121565 Penstemon palmeri eglandulosus (D. D. Keck) N. H. Holmgren USA: Utah 1 mile north of Kanab R. C. Rollins & T. S. Chambers 2446 1938-7-6
GH: 02121679 Penstemon pratensis Greene USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2565 1938-7-16
GH: 02121944 Penstemon procerus tolmiei (Hooker) Cronquist USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2675 1938-8-5
GH: 02122532 Penstemon serrulatus Menzies ex Smith USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2662 1938-8-4
GH: 02122545 Penstemon speciosus Douglas USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2576 1938-7-19
GH: 02122543 Penstemon speciosus Douglas USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2507 1938-7-11
GH: 02122821 Penstemon strictus strictiformis (Rydberg) D. D. Keck USA: New Mexico 15 miles east of Taos R. C. Rollins & T. S. Chambers 2411 1938-7-1
GH: 01801255 Penstemon virens Pennell ex Rydberg USA: Colorado 10 miles east of Granby R. C. Rollins & T. S. Chambers 2405 1938-6-30
GH: 01801286 Penstemon virgatus A. Gray USA: Arizona 6 miles east of Flagstaff R. C. Rollins & T. S. Chambers 2430 1938-7-4
GH: 01801341 Penstemon watsonii A. Gray USA: Nevada [data not captured] R. C. Rollins & T. S. Chambers 2578 1938-7-19
GH: 01801376 Penstemon watsonii A. Gray USA: Utah 8 miles east of Paragonah R. C. Rollins & T. S. Chambers 2456 1938-7-7
GH: 01801883 Plantago aristata Michaux USA: Tennessee [data not captured] R. C. Rollins & T. S. Chambers 2792 1938-9-11
GH: 01805642 Veronica cusickii A. Gray USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2621 1938-7-31
Polemoniaceae GH: 00985961 Ipomopsis gunnisonii (Torrey & A. Gray) V. E. Grant USA: Arizona 3 miles south of the Na-vajo Bridge across t... R. C. Rollins & T. S. Chambers 2439 1938-7-5
GH: 01104145 Ipomopsis longiflora (Torrey) V. E. Grant USA: Texas 6 miles west of Sierra Blanca R. C. Rollins & T. S. Chambers 2754 1938-9-5
GH: 01571194 Phlox austromontana Coville USA: Arizona 20 miles south of Jacobs Lake, Kaibab Nation... R. C. Rollins & T. S. Chambers 2438 1938-7-5
GH: 01574862 Phlox nana Nuttall USA: Texas Big Bend State Park R. C. Rollins & T. S. Chambers 2774 1938-9-6
Polygonaceae GH: 02346239 Aconogonon davisae glabrum (G. N. Jones) S. P. Hong USA: Washington [data not captured] R. C. Rollins & T. S. Chambers 2703 1938-8-9
GH: 01717928 Eriogonum abertianum Torrey USA: Arizona near Wilcox R. C. Rollins & T. S. Chambers 2746 1938-9-3
GH: 01618006 Eriogonum abertianum Torrey USA: Texas 6 miles west of Sierra Blanca R. C. Rollins & T. S. Chambers 2755 1938-9-5
GH: 00364116 Eriogonum fasciculatum foliolosum (Nuttall) S. Stokes ex Abrams USA: California 10 miles west of Alpine, San Diego-El Centro R. C. Rollins & T. S. Chambers 2737 1938-9-2
GH: 01851001 Eriogonum heracleoides angustifolium (Nuttall) Torrey & A. Gray USA: Idaho Near Cascade R. C. Rollins & T. S. Chambers 2594 1938-7-24
GH: 01986343 Eriogonum nudum pubiflorum Bentham USA: California [data not captured] R. C. Rollins & T. S. Chambers 2720 1938-8-14
GH: 01986344 Eriogonum nudum pubiflorum Bentham USA: California [data not captured] R. C. Rollins & T. S. Chambers 2723 1938-8-15
GH: 01986672 Eriogonum ovalifolium nivale (Canby) M. E. Jones USA: Oregon [data not captured] R. C. Rollins & T. S. Chambers 2627 1938-7-31
GH: 01986809 Eriogonum panamintense C. V. Morton USA: Utah near Bryce Canyon, Bryce Canyon National Par... R. C. Rollins & T. S. Chambers 2452 1938-7-6
GH: 01986809 Eriogonum panguicense (M. E. Jones) Reveal USA: Utah near Bryce Canyon, Bryce Canyon National Par... R. C. Rollins & T. S. Chambers 2452 1938-7-6
GH: 00364395 Eriogonum parvifolium Smith USA: California near the ocean, 5 miles south of Big Sur R. C. Rollins & T. S. Chambers 2729 1938-8-21
GH: 01986882 Eriogonum polycladon Bentham USA: New Mexico 15 miles east of Lordsburg R. C. Rollins & T. S. Chambers 2750 1938-9-4
GH: 01966426 Eriogonum rotundifolium Bentham USA: Arizona near Wilcox R. C. Rollins & T. S. Chambers 2748 1938-9-3
GH: 01966544 Eriogonum shockleyi S. Watson USA: Utah Wah Wah Mountains, 35 miles west of Milford R. C. Rollins & T. S. Chambers 2461 1938-7-28
Ranunculaceae GH: 01709815 Aquilegia scopulorum Tidestrom USA: Nevada east of Mount Wheeler, Snake Range R. C. Rollins & T. S. Chambers 2476 1938-7-8
GH: 01709828 Aquilegia shockleyi Eastwood USA: Nevada near Leman Creek, east of Mount Wheeler, Sna... R. C. Rollins & T. S. Chambers 2467 1938-7-8
Rhamnaceae GH: 01789413 Ceanothus fendleri A. Gray USA: Arizona 3 miles north of Jacobs Lake, Kiabab Nationa... R. C. Rollins & T. S. Chambers 2436 1938-7-5
Rosaceae GH: 00403830 Adenostoma sparsifolium Torrey USA: California 10 miles west of Alpine, between San Diego a... R. C. Rollins & T. S. Chambers 2736 1938-9-2
GH: 01606090 Fallugia paradoxa (D. Don) Endlicher USA: New Mexico mouth of Cimarron Canyon, 3 miles west of Ci... R. C. Rollins & T. S. Chambers 2410 1938-7-1
GH: 01862325 Peraphyllum ramosissimum Nuttall USA: Utah 7 miles northeast of Paragonah R. C. Rollins & T. S. Chambers 2460 1938-7-7
GH: 01556365 Purshia stansburiana (Torrey) Henrickson USA: Arizona 6 miles east of Flagstaff R. C. Rollins & T. S. Chambers 2428 1938-7-4
Rubiaceae GH: 02356067 Bouvardia ternifolia (Cavanilles) Schlechtendal USA: Texas Chisos Mountains, Big Bend State Park R. C. Rollins & T. S. Chambers 2773 1938-9-6
GH: 02354455 Houstonia acerosa (A. Gray) Bentham & Hooker f. USA: Texas north edge of the Davis Mountains, 5 miles e... R. C. Rollins & T. S. Chambers 2759 1938-9-5
Scrophulariaceae GH: 01842118 Erythranthe lewisii (Pursh) G. L. Nesom & N. S. Fraga USA: Idaho Big Creek Summit, 20 miles northeast of Casc... R. C. Rollins & T. S. Chambers 2585 1938-7-22
Solanaceae GH: 00402665 Nicotiana glauca Graham USA: California near LaJolla R. C. Rollins & T. S. Chambers 2733 1938-9-1
GH: 01542831 Solanum elaegnifolium Cavanilles USA: New Mexico 15 miles east of Lordsburg R. C. Rollins & T. S. Chambers 2749 1938-9-4
Talinaceae GH: 01928021 Talinum aurantiacum Engelmann USA: Arizona near Wilcox R. C. Rollins & T. S. Chambers 2744 1938-9-3
GH: 01928032 Talinum aurantiacum Engelmann USA: Arizona near Wilcox R. C. Rollins & T. S. Chambers 2745 1938-9-3
Verbenaceae GH: 01799738 Aloysia gratissima schulziae (Standley) L. D. Benson USA: Texas 15 miles west of Langtry R. C. Rollins & T. S. Chambers 2781 1938-9-7
Zygophyllaceae GH: 01787842 Kallstroemia grandiflora Torrey ex A. Gray USA: Texas 6 miles north of the Rio Grande River, Big B... R. C. Rollins & T. S. Chambers 2768 1938-9-6
GH: 01787967 Larrea tridentata (de Candolle) Coville USA: Arizona 25 miles east of Tucson R. C. Rollins & T. S. Chambers 2743 1938-9-3
