Apocynaceae GH: 02180600 Amsonia jonesii Woodson USA: Colorado 15 miles west of Grand Junction R. C. Rollins 1894 1937-8-6
Asteraceae GH: 01923868 Brickellia oblongifolia linifolia B. L. Robinson USA: Utah near Willow Creek, 22 miles south of Ouray, ... R. C. Rollins 1721 1937-6-16
GH: 02216623 Chrysothamnus viscidiflorus lanceolatus (Nuttall) H. M. Hall & Clements USA: Colorado 25 miles south of Rifle R. C. Rollins 1946 1937-8-19
GH: 02142649 Crepis modocensis Greene USA: Wyoming near Lyman R. C. Rollins 1618 1937-6-10
GH: 02205593 Ericameria nauseosa graveolens (Nuttall) Reveal & Schuyler USA: Colorado creek bottom near Minnisota Creek, 3 miles s... R. C. Rollins 1952 1937-8-23
GH: 02205578 Ericameria nauseosa graveolens (Nuttall) Reveal & Schuyler USA: Colorado 10 miles southeast of Delta R. C. Rollins 1967 1937-8-27
GH: 02207063 Ericameria parryi (A. Gray) G. L. Nesom & G. I. Baird USA: Colorado at the head of Stevens Gulch, 10 miles north... R. C. Rollins 1950 1937-8-23
GH: 02351048 Erigeron pulcherrimus A. Heller USA: Utah eastern slope of Big Pack Mountain, 4 miles ... R. C. Rollins 1712 1937-6-15
Berberidaceae GH: 02169208 Mahonia fremontii (Torrey) Fedde USA: Colorado near Smiths Fork, 4 miles east of Crawford R. C. Rollins 1965 1937-8-26
Betulaceae GH: 02198803 Alnus incana tenuifolia (Nuttall) Breitung USA: Colorado 2miles south of Cerro Summit R. C. Rollins 1992 1937-9-2
Boraginaceae GH: 00096077 Cryptantha rollinsii I. M. Johnston USA: Utah Shale hillside ono Thornes Ranch, near Willo... R. C. Rollins 1715 1937-6-16
GH: 01994546 Lappula desertorum Greene USA: Wyoming near Lyman R. C. Rollins 1638 1937-6-10
GH: 01995507 Lappula sp. USA: Wyoming near Henrys Fork River, Lonetree-McKinnon R. C. Rollins 1680 1937-6-14
GH: 01996461 Lithospermum incisum Lehmann USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1649 1937-6-10
GH: 01996761 Lithospermum occidentale (Mackenzie) Weakley, Witsell & D. Estes USA: Colorado canyon bottom of Trinchera Creek, near junct... R. C. Rollins 1867 1937-7-14
GH: 02059745 Oreocarya breviflora Osterhout USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1736 1937-6-16
GH: 02059744 Oreocarya breviflora Osterhout USA: Utah foothills of the Uinta Mountains, 14 miles n... R. C. Rollins 1754 1937-6-17
GH: 02059774 Oreocarya caespitosa A. Nelson USA: Wyoming 15 miles north of Carter R. C. Rollins 1785 1937-6-22
GH: 02059773 Oreocarya caespitosa A. Nelson USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1645 1937-6-10
GH: 02059754 Oreocarya caespitosa A. Nelson USA: Wyoming near Henrys Fork River, between Lontree and ... R. C. Rollins 1685 1937-6-14
GH: 02060291 Oreocarya flava A. Nelson USA: Colorado near the Little Dolores Creek, 10 miles west... R. C. Rollins 1895 1937-8-6
GH: 02060340 Oreocarya flava A. Nelson USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1734 1937-6-16
GH: 02060339 Oreocarya flava A. Nelson USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1735 1937-6-16
GH: 02060496 Oreocarya flavoculata A. Nelson USA: Utah 2 miles south of Sheep Creek, 10 mi. south o... R. C. Rollins 1770 1937-6-17
GH: 02060515 Oreocarya flavoculata A. Nelson USA: Utah foothills of the Uinta Mountains, 10 miles n... R. C. Rollins 1752 1937-6-17
GH: 02060514 Oreocarya flavoculata A. Nelson USA: Utah eastern slope of Big Pack Mountain, 4 miles ... R. C. Rollins 1706 1937-6-15
GH: 02060549 Oreocarya flavoculata A. Nelson USA: Wyoming near Lyman R. C. Rollins 1620 1937-6-10
GH: 02060533 Oreocarya flavoculata A. Nelson USA: Wyoming between Lonetree and McKinnon R. C. Rollins 1676 1937-6-14
GH: 02060680 Oreocarya grahamii (I. M. Johnston) R. B. Kelley USA: Utah near Willow Creek, 22 miles south of Ouray, ... R. C. Rollins 1716 1937-6-16
GH: 02060679 Oreocarya grahamii (I. M. Johnston) R. B. Kelley USA: Utah eastern slope of Big Pack Mountain, 4 miles ... R. C. Rollins 1707 1937-6-15
GH: 02060827 Oreocarya humilis nana (Eastwood) W. A. Weber USA: Utah eastern slope of Big Pack Mountain, 4 miles ... R. C. Rollins 1705a 1937-6-15
GH: 02060823 Oreocarya humilis nana (Eastwood) W. A. Weber USA: Utah on the eastern face of Big Pack Mountain, 4 ... R. C. Rollins 1711 1937-6-15
GH: 02061140 Oreocarya sericea (A. Gray) Greene USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1651 1937-6-10
GH: 02061132 Oreocarya sericea (A. Gray) Greene USA: Utah near Sheep Creek, 7 miles south of Manilla R. C. Rollins 1772 1937-6-17
GH: 02061301 Oreocarya thyrsiflora Greene USA: Colorado canyon wall of Trinchera Creek near its junc... R. C. Rollins 1865 1937-7-14
GH: 02061296 Oreocarya thyrsiflora Greene USA: Colorado 5 miles south of Virginia Dale R. C. Rollins 1796 1937-6-27
GH: 02144218 Tiquilia nuttallii (Bentham) A. T. Richardson USA: Utah near Willow Creek, 16 miles south of Ouray, ... R. C. Rollins 1724 1937-6-16
Brassicaceae GH: 00309967 Arabis crandallii B. L. Robinson USA: Colorado 12 miles south of Iola R. C. Rollins 2019 1937-9-7
GH: 00018641 Arabis demissa russeola Rollins USA: Utah Foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1757 1937-6-17
GH: 00960651 Arabis hirsuta pycnocarpa (M. Hopkins) Rollins USA: Utah 18 miles north of Vernal, foothills of the U... R. C. Rollins 1761 1937-6-17
GH: 00960652 Arabis hirsuta pycnocarpa (M. Hopkins) Rollins USA: Utah Uinta Mountains, 25 miles south of Manilla R. C. Rollins 1766 1937-6-17
GH: 00309967 Arabis pallidifolia Rollins USA: Colorado 12 miles south of Iola R. C. Rollins 2019 1937-9-7
GH: 01153832 Boechera demissa (Greene) W. A. Weber USA: Colorado 5 miles south of Iola R. C. Rollins 2002 1937-9-4
GH: 01153845 Boechera demissa languida (Rollins) Dorn USA: Wyoming near the City Springs, 2 miles east of Laram... R. C. Rollins 1610 1937-6-8
GH: 01153879 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Colorado eastern slope of Fall River Pass, Rocky Moun... R. C. Rollins 1884 1937-8-4
GH: 01153905 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Utah foothills of the Uintah Mountains, 18 miles ... R. C. Rollins 1760a 1937-6-17
GH: 01153952 Boechera fendleri spatifolia (Rydberg) W. A. Weber USA: Colorado 2 miles west of Powderhorn R. C. Rollins 2020 1937-9-7
GH: 01153978 Boechera gunnisoniana (Rollins) W. A. Weber USA: Colorado 4 miles south of Tomichi Creek, about 10 mil... R. C. Rollins 2014 1937-9-8
GH: 01155050 Boechera lignifera (A. Nelson) W. A. Weber USA: Utah foothills of the Uinta Mts., 10 miles north ... R. C. Rollins 1753 1937-6-17
GH: 00946281 Boechera lignifera (A. Nelson) W. A. Weber USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1655 1937-6-10
GH: 00946283 Boechera lignifera (A. Nelson) W. A. Weber USA: Wyoming 15 miles north of Carter R. C. Rollins 1784 1937-6-22
GH: 00946286 Boechera lignifera (A. Nelson) W. A. Weber USA: Wyoming near Lyman R. C. Rollins 1614 1937-6-10
GH: 00946288 Boechera lignifera (A. Nelson) W. A. Weber USA: Wyoming near Blacks Fork, 16 miles southeast of Lyma... R. C. Rollins 1670 1937-6-11
GH: 00946292 Boechera lignifera (A. Nelson) W. A. Weber USA: Wyoming between Lonetree and McKinnon R. C. Rollins 1677 1937-6-14
GH: 00018641 Boechera pendulina (Greene) W. A. Weber USA: Utah Foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1757 1937-6-17
GH: 00960271 Boechera pulchra pallens (M. E. Jones) Dorn USA: Utah Uinta Basin; 14 miles west of Vernal R. C. Rollins 1748 1937-6-16
GH: 01155140 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado 3 mi. n. of Grand Lake, Rky. Mt. Nat. Park R. C. Rollins 2301 1937-8-17
GH: 01155153 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado northwestern slope of Grand Mesa, 6 miles so... R. C. Rollins 1901 1937-8-8
GH: 00948174 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Wyoming 15 miles north of Carter R. C. Rollins 1789 1937-6-22
GH: 00948232 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Wyoming near Black Fork River, 3 miles north of Lyma... R. C. Rollins 1657 1937-6-10
GH: 00948237 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Wyoming 1 mile north of Fort Bridger R. C. Rollins 1777 1937-6-21
GH: 00948262 Boechera selbyi (Rydberg) W. A. Weber USA: Colorado near the head of a Tributary to the Little D... R. C. Rollins 1898 1937-8-6
GH: 00948265 Boechera selbyi (Rydberg) W. A. Weber USA: Colorado near the Dolores River 1 mile south of Gatew... R. C. Rollins 1910 1937-8-9
GH: 00948267 Boechera selbyi (Rydberg) W. A. Weber USA: Colorado near Bostwick Park, 8 miles east of Montrose R. C. Rollins 1984 1937-8-31
GH: 00948272 Boechera selbyi (Rydberg) W. A. Weber USA: Colorado 10 miles northeast of Ridgeway R. C. Rollins 1937-9-1
GH: 00944223 Boechera sp. USA: Wyoming near Lyman R. C. Rollins 1614a 1937-6-10
GH: 00944244 Boechera sp. USA: Colorado near the Gunnison River, 3 miles east of Sap... R. C. Rollins 2001 1937-9-4
GH: 00948607 Boechera sparsiflora subvillosa (S. Watson) Dorn USA: Utah foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1760 1937-6-17
GH: 00948819 Boechera stricta (Graham) Al-Shehbaz USA: Colorado Uncompahgre Plateau 30 miles southwest of Mo... R. C. Rollins 1979 1937-8-28
GH: 00944020 Boechera stricta (Graham) Al-Shehbaz USA: Utah Uinta Mts., 30 miles south of Manilla R. C. Rollins 1764 1937-6-17
GH: 01155321 Caulanthus crassicaulis S. Watson USA: Utah foothills of the Uinta Mts., 18 miles north ... R. C. Rollins 1692 1937-6-14
GH: 00986138 Crucihimalaya virgata (Nuttall) D. A. German & A. L. Ebel USA: Wyoming near Henrys Fork River, between Lonetree and... R. C. Rollins 1682 1937-6-14
GH: 00986142 Crucihimalaya virgata (Nuttall) D. A. German & A. L. Ebel USA: Wyoming near Henrys Fork River, between Lonetree and... R. C. Rollins 1682 1937-6-14
ECON: 01155364 Descurainia californica O. E. Schulz USA: Colorado Pinon Mesa about 10 miles south of Glade Par... R. C. Rollins 1935 1937-8-13
GH: 01155366 Descurainia californica O. E. Schulz USA: Colorado Pinon Mesa about 10 miles south of Glade Par... R. C. Rollins 1935 1937-8-13
GH: 01155377 Descurainia incana (Bernhardi ex Fischer & C. A. Meyer) Dorn USA: Colorado near Lake Brennan, at the base of Ruby Peak,... R. C. Rollins 2004 1937-9-6
GH: 01084101 Descurainia pinnata halictorum (Cockerell) Detling USA: Wyoming near Lyman R. C. Rollins 1616 1937-6-10
GH: 01084215 Descurainia pinnata intermedia (Rydberg) Detling USA: Wyoming near Blacks Fork River, 16 miles southeast o... R. C. Rollins 1665 1937-6-11
GH: 00992168 Erysimum asperum de Candolle USA: Colorado northern slope of Mesa de Maya, 60 miles eas... R. C. Rollins 1839 1937-7-10
GH: 00992170 Erysimum asperum de Candolle USA: Colorado northern slope of Mesa de Maya, 60 miles eas... R. C. Rollins 1839 1937-7-10
GH: 01538124 Erysimum capitatum (Douglas ex Hooker) Greene USA: Utah 18 miles north of Vernal, Uinta Basin R. C. Rollins 1759 1937-6-17
GH: 01538290 Erysimum capitatum argillosum (Greene) R. J. Davis USA: Colorado 1 mile south of Morley, Trinidad-Raton, New ... R. C. Rollins 1815 1937-7-4
GH: 01538340 Erysimum capitatum argillosum (Greene) R. J. Davis USA: Wyoming Laramie Plains, 16 miles south of Laramie R. C. Rollins 1794 1937-6-27
GH: 01538342 Erysimum capitatum argillosum (Greene) R. J. Davis USA: Wyoming Laramie Plains, 16 miles south of Laramie R. C. Rollins 1794 1937-6-27
GH: 01581970 Glaucocarpum sufffrutescens (Rollins) Rollins USA: Utah Green River Eocene beds; eastern slope of Bi... R. C. Rollins 1700 1937-5-15
GH: 01581965 Glaucocarpum sufffrutescens (Rollins) Rollins USA: Utah eastern slope of Big Pack Mt. 4 miles west o... R. C. Rollins 1700 1937-6-15
ECON: 01581964 Glaucocarpum sufffrutescens (Rollins) Rollins USA: Utah Green River Eocene beds, eastern slope of Bi... R. C. Rollins 1700 1937-6-15
GH: 01540473 Hesperidanthus linearifolius (A. Gray) Rydberg USA: Colorado 1 mile south of Morley, between Trinidad and... R. C. Rollins 1818 1937-7-4
GH: 01546648 Lepidium alyssoides A. Gray USA: Colorado near Little Dolores Creek, 10 miles west of ... R. C. Rollins 1896 1937-8-6
GH: 01546651 Lepidium alyssoides A. Gray USA: Colorado near Little Dolores Creek, 10 miles west of ... R. C. Rollins 1896 1937-8-6
GH: 01546655 Lepidium alyssoides A. Gray USA: Colorado Plateau Creek, 15 miles northeast of Palisae... R. C. Rollins 1920 1937-8-11
GH: 01548009 Lepidium crenatum (Greene) Rydberg USA: Colorado 1 mile south of Paonia R. C. Rollins 1951 1937-8-23
GH: 01549032 Lepidium montanum Nuttall USA: Colorado high mesa 10 miles south of Sapinero R. C. Rollins 2000 1937-9-3
GH: 01549172 Lepidium montanum jonesii (Rydberg) C. L. Hitchcock USA: Utah near Willow Creek, 22 miles south of Ouray R. C. Rollins 1723 1937-6-16
ECON: 01549206 Lepidium montanum spathulatum (B. L. Robinson) C. L. Hitchcock USA: Colorado 1 mile south of Paonia R. C. Rollins 1951 1937-8-23
GH: 00019333 Lesquerella alpina (Nuttall) S. Watson USA: Utah Foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1758 1937-6-17
GH: 00019259 Lesquerella calcicola Rollins USA: Colorado 3 miles east of San Francisco Creek, 8 miles... R. C. Rollins 1861 1937-7-13
GH: 00019333 Lesquerella subumbellata Rollins USA: Utah Foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1758 1937-6-17
GH: 01550777 Noccaea fendleri glauca (A. Nelson) Al-Shehbz & M. Koch USA: Utah Uinta Mountains, 30 miles south of Manila R. C. Rollins 1763 1937-6-17
GH: 01573540 Physaria acutifolia Rydberg USA: Utah eastern slope of the Big Pack Mountain, 4 mi... R. C. Rollins 1708 1937-6-15
GH: 01573601 Physaria acutifolia Rydberg USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1653 1937-6-10
GH: 00019259 Physaria calcicola (Rollins) O'Kane & Al-Shehbaz USA: Colorado 3 miles east of San Francisco Creek, 8 miles... R. C. Rollins 1861 1937-7-13
GH: 01575089 Physaria calcicola (Rollins) O'Kane & Al-Shehbaz USA: Colorado 10 miles south of Pueblo R. C. Rollins 1799 1937-7-2
GH: 01575094 Physaria calcicola (Rollins) O'Kane & Al-Shehbaz USA: Colorado 10 miles south of Pueblo R. C. Rollins 1799 1937-7-2
GH: 01575095 Physaria calcicola (Rollins) O'Kane & Al-Shehbaz USA: Colorado 10 miles south of Pueblo R. C. Rollins 1799 1937-7-2
GH: 01575527 Physaria fendleri (A. Gray) O'Kane & Al-Shehbaz USA: Colorado 6 miles west of Thatcher R. C. Rollins 1825 1937-7-6
GH: 01575747 Physaria floribunda Rydberg USA: Colorado near Bostwick Park, 8 miles east of Montrose R. C. Rollins 1983 1937-8-31
GH: 01687524 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Utah 2 miles west of Manilla R. C. Rollins 1688 1937-6-14
GH: 01687529 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Utah 2 miles west of Manilla R. C. Rollins 1688 1937-6-14
GH: 01687549 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Wyoming on the Laramie Plains, 16 miles south of Lar... R. C. Rollins 1793 1937-6-27
GH: 01687567 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Wyoming 1 mile north of Fort Bridger R. C. Rollins 1775 1937-6-21
GH: 01687628 Physaria montana (A. Gray) Greene USA: Colorado 1 mile south of Morley, Trinidad-Raton R. C. Rollins 1816 1937-7-4
GH: 01687716 Physaria montana (A. Gray) Greene USA: Wyoming near City Springs 2 miles east of Laramie R. C. Rollins 1611 1937-6-8
ECON: 01687678 Physaria nelsonii O'Kane & Al-Shehbaz USA: Wyoming between Lonetree and McKinnon R. C. Rollins 1681 1937-6-14
GH: 01687691 Physaria nelsonii O'Kane & Al-Shehbaz USA: Wyoming near Henrys Fork River, Lonetree-McKinnon R. C. Rollins 1681 1937-6-14
GH: 01687842 Physaria ovalifolia (Rydberg) O'Kane & Al-Shehbaz USA: Colorado 6 miles west of Thatcher R. C. Rollins 1826 1937-7-6
GH: 01687994 Physaria parvula (Greene) O'Kane & Al-Shehbaz USA: Wyoming 1/2 mile east of McKinnon R. C. Rollins 1686 1937-6-14
GH: 01687995 Physaria parvula (Greene) O'Kane & Al-Shehbaz USA: Wyoming one-half mile east of McKinnon R. C. Rollins 1686 1937-6-14
GH: 01687999 Physaria parvula (Greene) O'Kane & Al-Shehbaz USA: Wyoming near Henrys Fork River, between Lonetree and... R. C. Rollins 1684 1937-6-14
GH: 01691002 Physaria parvula (Greene) O'Kane & Al-Shehbaz USA: Wyoming near Henrys Fork River, between Lonetree and... R. C. Rollins 1684 1937-6-14
ECON: 01691337 Physaria reediana O'Kane & Al-Shehbaz USA: Wyoming 1/2 mile east of McKinnon R. C. Rollins 1686 1937-6-14
GH: 00019333 Physaria subumbellata (Rollins) O'Kane & Al-Shehbaz USA: Utah Foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1758 1937-6-17
ECON: 01716153 Sisymbrium linifolium (Nuttall) Nuttall ex Torrey & A. Gray USA: Wyoming near Lyman R. C. Rollins 1773 1937-6-21
GH: 01716165 Sisymbrium linifolium (Nuttall) Nuttall ex Torrey & A. Gray USA: Wyoming near Lyman R. C. Rollins 1773 1937-6-21
GH: 01716656 Stanleya pinnata (Pursh) Britton USA: Colorado 2 miles south of Thatcher R. C. Rollins 1822 1937-7-6
GH: 01716664 Stanleya pinnata (Pursh) Britton USA: Colorado between Kremmling and Walcott R. C. Rollins 1889 1937-8-4
GH: 01716669 Stanleya pinnata (Pursh) Britton USA: Colorado 10 miles northeast of Ridgeway R. C. Rollins 1988 1937-9-1
GH: 01716670 Stanleya pinnata (Pursh) Britton USA: Colorado near the Dolores River, 1 mile south of Gate... R. C. Rollins 1909 1937-8-9
GH: 01716672 Stanleya pinnata (Pursh) Britton USA: Colorado Color. Nat. Monuement, 10 miles southwest of... R. C. Rollins 1931 1937-8-13
GH: 01716792 Stanleya pinnata bipinnata (Greene) Rollins USA: Wyoming 1 mile north of Fort Bridger R. C. Rollins 1778 1937-6-21
GH: 01716807 Stanleya pinnata integrifolia (E. James) Rollins USA: Colorado Colo. Nat. Monuement, 10 miles southwest of ... R. C. Rollins 1931 1937-8-13
GH: 01716808 Stanleya pinnata integrifolia (E. James) Rollins USA: Colorado Little Book Cliffs, 20 miles northeast of Gr... R. C. Rollins 1893 1937-8-5
GH: 01716828 Stanleya pinnata integrifolia (E. James) Rollins USA: Utah near Willow Creek, 22 mi. south Ouray, Uinta... R. C. Rollins 1718 1937-6-16
GH: 01716831 Stanleya pinnata integrifolia (E. James) Rollins USA: Utah near Willow Creek, 22 mi. south of Ouray, Ui... R. C. Rollins 1718 1937-6-16
GH: 01736064 Streptanthella longirostris (S. Watson) Rydberg USA: Utah 18 miles southwest of Vernal, Uinta Basin R. C. Rollins 1695 1937-6-15
GH: 01736090 Streptanthella longirostris (S. Watson) Rydberg USA: Wyoming 15 miles north of Carter R. C. Rollins 1788 1937-6-22
GH: 01736305 Streptanthus cordatus Nuttall ex Torrey & A. Gray USA: Wyoming 15 miles north of Carter R. C. Rollins 1785 1937-6-22
GH: 01736306 Streptanthus cordatus Nuttall ex Torrey & A. Gray USA: Wyoming 1 mile north of Fort Briger R. C. Rollins 1780 1937-6-21
GH: 01736854 Thelypodium integrifolium (Nuttall) Endlicher USA: Colorado between Gypsum and Glenwood Springs, about 2... R. C. Rollins 1887 1937-8-4
GH: 01736911 Thelypodium integrifolium complanatum Al-Shehbaz USA: Colorado between Gypsum and Glenwood Springs, about 2... R. C. Rollins 1887 1937-8-4
Caesalpiniaceae GH: 01679049 Pomaria jamesii (Torrey & A. Gray) Walpers USA: Colorado 3 miles east of Alcreek, at the foot of Mesa... R. C. Rollins 1827 1937-7-7
Caprifoliaceae GH: 02183936 Sambucus racemosa Linnaeus USA: Colorado Uncompahgre Plateau, 30 miles southwest of M... R. C. Rollins 1977 1937-8-28
GH: 02036204 Symphoricarpos occidentalis Hooker USA: Colorado Trinchera Creek near its junction with the P... R. C. Rollins 1866 1937-7-14
Caryophyllaceae GH: 01741034 Arenaria capillaris Poiret USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1745 1937-6-16
GH: 01741453 Arenaria fendleri A. Gray USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1801 1937-7-3
GH: 01741586 Arenaria hookeri pinetorum (A. Nelson) W. A. Weber USA: Colorado 5 miles south of Virginia Dale R. C. Rollins 1797 1937-6-27
GH: 01715054 Paronychia sessiliflora Nuttall USA: Colorado 6 miles west of Thatcher R. C. Rollins 1824 1937-7-6
GH: 01752217 Silene drummondii striata (Rydberg) J. K. Morton USA: Wyoming near the University of Wyo. Summer Camp, Med... R. C. Rollins 1049 1937-7-23
Chenopodiaceae GH: 02004788 Atriplex argentea Nuttall USA: Colorado 8 miles north of Rifle R. C. Rollins 1940 1937-8-17
GH: 02003122 Atriplex canescens (Pursh) Nuttall USA: Colorado 25 miles south of Delta R. C. Rollins 1980 1937-8-28
GH: 02003811 Atriplex gardneri D. Dietrich USA: Wyoming near Lyman R. C. Rollins 1633 1937-6-10
GH: 02003819 Atriplex gardneri D. Dietrich USA: Wyoming near Lyman R. C. Rollins 1632 1937-6-10
GH: 01781580 Blitum nuttallianum Schultes USA: Wyoming near Lyman R. C. Rollins 2015 1937-6-10
GH: 01784595 Grayia brandegeei A. Gray USA: Colorado 8 miles north of Rifle R. C. Rollins 1939 1937-8-17
Convolvulaceae GH: 02042200 Ipomoea leptophylla Torrey USA: Colorado 3 miles east of Alcreek at the base of Mesa ... R. C. Rollins 1828 1937-7-7
Cornaceae GH: 02019022 Cornus stolonifera Michaux USA: Colorado Unaweep Canyon, 15 miles east of Gateway R. C. Rollins 1913 1937-8-9
Cucurbitaceae GH: 01543877 Cucurbita foetidissima Kunth USA: Colorado 10 miles south of La Junta R. C. Rollins 1882 1937-7-16
Cupressaceae GH: 02104551 Juniperus communis montana Aiton USA: Colorado Blue Mesa 10 miles southwest of Sapinero. R. C. Rollins 1998 1937-9-3
GH: 02105362 Juniperus monosperma Sargent USA: Colorado hillsides and bluffs of the Pergatoire River... R. C. Rollins 1868 1937-7-19
Ephedraceae GH: 00933573 Ephedra torreyana S. Watson USA: Colorado near the Gunnison River, 6 miles west of Del... R. C. Rollins 1975 1937-8-27
GH: 00933822 Ephedra viridis Coville USA: Colorado Colorado National Monument, 10 miles southwe... R. C. Rollins 1932 1937-8-13
Ericaceae GH: 01117406 Arctostaphylos coloradensis Rollins USA: Colorado Uncompahgre Plateau, 31 miles southwest of W... R. C. Rollins 1930 1937-8-12
GH: 01117519 Arctostaphylos patula Greene USA: Colorado Uncompahgre Plateau, 31 miles southwest of W... R. C. Rollins 1928 1937-8-12
Fabaceae GH: 01885025 Dalea candida oligophylla (Torrey) Shinners USA: Colorado 20 miles northeast of Branson R. C. Rollins 1870 1937-7-14
GH: 01958096 Hedysarum boreale Nuttall USA: Colorado Trinchera Creek, near its junction with the ... R. C. Rollins 1864 1937-7-14
GH: 00032386 Hedysarum boreale gremiale (Rollins) Northstrom & S. L. Welsh USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1733 1937-6-16
GH: 01958226 Hedysarum boreale gremiale (Rollins) Northstrom & S. L. Welsh USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1733 1937-6-16
GH: 01958224 Hedysarum boreale gremiale (Rollins) Northstrom & S. L. Welsh USA: Utah foothills of the Uinta Mountains, 18 miles n... R. C. Rollins 1757a 1937-6-17
GH: 00032386 Hedysarum gremiale Rollins USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1733 1937-6-16
GH: 02176555 Lupinus greenei A. Heller USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1646 1937-6-10
GH: 02128192 Lupinus pusillus Pursh USA: Utah near Ouray, Uinta Basin R. C. Rollins 1732 1937-6-16
GH: 02131025 Oxytropis lambertii bigelovii A. Gray USA: Colorado on the summit of Raton Mesa, above San Franc... R. C. Rollins 1852 1937-7-11
GH: 02131505 Oxytropis sericea Nuttall USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1652 1937-6-10
GH: 02134916 Robinia neomexicana A. Gray USA: Colorado Along the Pergatoire River, 18 miles northea... R. C. Rollins 1819 1937-7-6
GH: 02134912 Robinia neomexicana A. Gray USA: Colorado north slope of Raton Mesa, San Francisco Can... R. C. Rollins 1854 1937-7-11
GH: 02137940 Trifolium andinum Nuttall USA: Wyoming near Lyman R. C. Rollins 1624 1937-6-10
GH: 02137938 Trifolium andinum Nuttall USA: Wyoming near Lyman R. C. Rollins 1623 1937-6-10
GH: 02137937 Trifolium andinum Nuttall USA: Wyoming near the junction of Hams Fork and Blacks Fo... R. C. Rollins 1663 1937-6-11
GH: 02342999 Trifolium gymnocarpon Nuttall USA: Wyoming near the Blacks Fork River, 16 miles southea... R. C. Rollins 1669 1937-6-11
GH: 02345324 Vicia americana minor Hooker USA: Wyoming near Blacks Fork River, 16 miles southeast o... R. C. Rollins 1664 1937-6-11
GH: 02345240 Vicia americana minor Hooker USA: Colorado 5 miles south of Virginia Dale R. C. Rollins 1795 1937-6-27
Gentianaceae GH: 02069828 Frasera speciosa Douglas ex Grisebach USA: Colorado Blue Mesa 10 miles southwest of Sapinero R. C. Rollins 1996 1937-9-3
Hydrangeaceae GH: 01750783 Fendlera falcata Thornber ex Wooton & Standley USA: Colorado 2 miles northwest of Gateway R. C. Rollins 1906 1937-8-9
GH: 01737863 Philadelphus microphyllus A. Gray USA: Colorado northern slope of Mesa De Maya, 60 miles eas... R. C. Rollins 1835 1937-7-10
Iridaceae GH: 01750002 Sisyrinchium montanum Greene USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1805 1937-7-3
Lamiaceae GH: 01553017 Hedeoma drummondii Bentham USA: Colorado 15 miles south of Timpas R. C. Rollins 1872 1937-7-31
GH: 01696948 Scutellaria brittonii Porter USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1802 1937-7-3
GH: 01700343 Teucrium laciniatum Torrey USA: Colorado Roadside 2 miles west of Thatcher R. C. Rollins 1823 1937-7-6
Linaceae GH: 02054027 Linum subteres (Trelease) H. J. P. Winkler USA: Utah the Green River Eocene beds, of Big Pack Mou... R. C. Rollins 1701 1937-6-15
Malvaceae GH: 02200993 Sidalcea candida glabrata C. L. Hitchcock USA: Colorado 5 miles north of Mesa Lakes, Grand Mesa R. C. Rollins 1903 1937-8-8
GH: 02199342 Sphaeralcea angustifolia (Cavanilles) G. Don USA: Colorado 8 miles northwest of Las Animas R. C. Rollins 1877 1937-7-28
GH: 01547966 Sphaeralcea coccinea (Nuttall) Rydberg USA: Wyoming near Lyman R. C. Rollins 1634 1937-6-10
GH: 02199665 Sphaeralcea coccinea elata (E. G. Baker) Kearney USA: Colorado 30 miles south of Rifle R. C. Rollins 1947 1937-8-19
GH: 02199821 Sphaeralcea grossulariaefolia (Hooker & Arnott) Rydberg USA: Utah 10 miles south of Ouray, Uinta Basin R. C. Rollins 1729 1937-6-16
GH: 02198138 Sphaeralcea parvifolia A. Nelson USA: Utah 8 miles south of Ouray, Uinta Basin R. C. Rollins 1731 1937-6-16
Oleaceae GH: 01848224 Fraxinus anomala Torrey ex S. Watson USA: Colorado eastern slope of Pinon Mesa, 7 miles west of... R. C. Rollins 1899 1937-8-6
Onagraceae GH: 01624683 Calylophus hartwegii lavandulifolius (A. Gray & Torrey) Towner & P. H. Raven USA: Colorado ravine near the Gunnison River, 8 miles west... R. C. Rollins 1973a 1937-8-27
GH: 01624691 Calylophus hartwegii lavandulifolius (A. Gray & Torrey) Towner & P. H. Raven USA: Colorado 8 miles south of Kim R. C. Rollins 1833 1937-7-7
GH: 01624692 Calylophus hartwegii lavandulifolius (A. Gray & Torrey) Towner & P. H. Raven USA: Colorado ravine near the Gunnison River, 8 miles west... R. C. Rollins 1973 1937-8-27
GH: 01645359 Oenothera caespitosa Nuttall USA: Wyoming near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1658 1937-6-11
GH: 01645360 Oenothera caespitosa Nuttall USA: Wyoming near Lyman R. C. Rollins 1635 1937-6-10
GH: 01643287 Oenothera pallida trichocalyx (Nuttall) Munz & W.M. Klein USA: Wyoming near the junction of Hams Fork and Blacks Fo... R. C. Rollins 1661 1937-6-11
Orobanchaceae GH: 02081435 Orthocarpus purpureo-albus A. Gray ex S. Watson USA: Colorado on the northeastern edge of the Uncompahgre ... R. C. Rollins 1921 1937-8-12
Papaveraceae GH: 01738336 Corydalis aurea Willdenow USA: Colorado Black Canyon of the Gunnison National Monuem... R. C. Rollins 1963 1937-8-26
GH: 01738575 Corydalis caseana brandegei (S. Watson) Ownbey USA: Colorado near Lake Brennan at the base of Ruby Peak R. C. Rollins 2003 1937-9-6
Plantaginaceae GH: 02002692 Penstemon barbatus torreyi (Bentham) A. Gray USA: Colorado on the north side of Mesa de Maya, 60 miles ... R. C. Rollins 1837 1937-7-10
Polemoniaceae GH: 01083688 Aliciella haydenii (A. Gray) J. M. Porter USA: Colorado 2 miles east of Gateway R. C. Rollins 1911 1937-8-9
GH: 01000371 Aliciella leptomeria (A. Gray) J. M. Porter USA: Utah near Willow Creek, 16 miles south of Ouray, ... R. C. Rollins 1726 1937-6-16
GH: 01083703 Aliciella pentstemonoides (M. E. Jones) J. M. Porter USA: Colorado about 8 miles south of Cimarron R. C. Rollins 1995 1937-8
GH: 00985781 Ipomopsis congesta (Hooker) V. E. Grant USA: Colorado 2 miles east of Gateway R. C. Rollins 1912 1937-8-9
GH: 01104234 Ipomopsis polycladon (Torrey) V. E. Grant USA: Utah eastern slope of Big Pack Mt., 4 miles west ... R. C. Rollins 1704 1937-6-15
GH: 01104374 Ipomopsis spicata (Nuttall) V. E. Grant USA: Colorado 3 miles east of San Francisco Creek, 8 miles... R. C. Rollins 1863 1937-7-13
GH: 01104387 Ipomopsis spicata (Nuttall) V. E. Grant USA: Wyoming near Henrys Fork, between Lonetree and McKin... R. C. Rollins 1683 1937-6-14
GH: 01694355 Polemonium foliosissimum A. Gray USA: Colorado North slope of Raton Mesa, near the top, hea... R. C. Rollins 1845 1937-7-11
Polygonaceae GH: 01618450 Eriogonum brevicaule Nuttall USA: Colorado between Kremmling and Walcott R. C. Rollins 1890 1937-8-4
GH: 01618621 Eriogonum caespitosum Nuttall USA: Wyoming near Lyman R. C. Rollins 1629 1937-6-10
GH: 01618647 Eriogonum cernuum Nuttall USA: Colorado 15 miles northeast of Grand Junction R. C. Rollins 1891 1937-8-5
GH: 01618650 Eriogonum cernuum Nuttall USA: Colorado near Cebolla Creek, 10 miles south of Powder... R. C. Rollins 2010 1937-9-7
GH: 01618903 Eriogonum contortum Small USA: Colorado 6 miles north of Fruita R. C. Rollins 1916 1937-8-10
GH: 01851222 Eriogonum fusiforme Small USA: Utah near Willow Creek, 16 miles south of Ouray, ... R. C. Rollins 1727 1937-6-16
GH: 01851174 Eriogonum inflatum Torrey & Fremont USA: Colorado 2 miles northwest of Gateway R. C. Rollins 1905 1937-8-9
GH: 01851357 Eriogonum jamesii flavescens S. Watson USA: Colorado on the Uncompahgre Plateau, 25 miles southwe... R. C. Rollins 1926 1937-8-12
GH: 01851362 Eriogonum jamesii flavescens S. Watson USA: Colorado near the Black Canyon of the Gunnison River,... R. C. Rollins 1962 1937-8-26
GH: 01851427 Eriogonum lachnogynum Torrey ex Bentham USA: Colorado at the head of an arroyo, 20 miles northeast... R. C. Rollins 1871 1937-7-14
GH: 01851598 Eriogonum lonchophyllum Torrey & A. Gray USA: Colorado near Smith Fork River, 6 miles east of Crawf... R. C. Rollins 1961a 1937-8-26
GH: 01851601 Eriogonum lonchophyllum Torrey & A. Gray USA: Colorado on Poison Mesa, 10 miles southwest of Crawfo... R. C. Rollins 1961 1937-8-26
GH: 01851611 Eriogonum lonchophyllum Torrey & A. Gray USA: Colorado Frijoli Hill, 10 miles southeast of Trinidad R. C. Rollins 1860 1937-7-13
GH: 01851991 Eriogonum microthecum simpsonii (Bentham) Reveal USA: Colorado Colorado National Monument, 10 miles southwe... R. C. Rollins 1934 1937-8-13
GH: 01986626 Eriogonum ovalifolium Nuttall USA: Wyoming near Lyman R. C. Rollins 1627 1937-6-10
GH: 01986714 Eriogonum ovalifolium purpureum (Nuttall) Durand USA: Utah 14 miles west of Vernal, Uintah Basin R. C. Rollins 1738 1937-6-16
GH: 01966225 Eriogonum racemosum Nuttall USA: Colorado Northeastern edge of the Uncompahgre Plteau,... R. C. Rollins 1923 1937-8-12
GH: 01966548 Eriogonum shockleyi S. Watson USA: Utah 14 miles west of Vernal, Uinta Basin R. C. Rollins 1737 1937-6-16
GH: 02043403 Eriogonum umbellatum majus Bentham USA: Colorado on top of the Grand Mesa, 7 miles south of M... R. C. Rollins 1904 1937-8-8
GH: 02004705 Stenogonum salsuginosum Nuttall USA: Wyoming near Lyman R. C. Rollins 1637 1937-6-10
GH: 02004697 Stenogonum salsuginosum Nuttall USA: Utah 10 mi S of Ouray, Uinta Basin R. C. Rollins 1728 1937-6-16
Portulacaceae GH: 01928187 Talinum parviflorum Nuttall USA: Colorado northeastern portion of the Uncompahgre Plat... R. C. Rollins 1927 1937-8-12
Pucciniaceae FH: 00873359 Gymnosporangium bethelii Kern USA: Colorado Muddy Creek of Gunnison River R. C. Rollins 1954 1937-8-24
FH: 00873382 Gymnosporangium bethelii Kern USA: Colorado Muddy Creek of the Gunnison River, 20 miles ... R. C. Rollins 1954 1937-8-24
FH: 00998200 Gymnosporangium inconspicuum Kern USA: Colorado 3 miles northeast of Cedaredge R. C. Rollins 1958 1937-8-25
Ranunculaceae GH: 01706436 Anemone canadensis Linnaeus USA: Colorado at the head of San Francisco Canyon, north s... R. C. Rollins 1843 1937-7-11
GH: 01706699 Anemone cylindrica A. Gray USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1803 1937-7-3
GH: 01708984 Aquilegia coerulea James USA: Colorado slope of Grand Mesa, 4 miles south of Mesa L... R. C. Rollins 1902 1937-8-8
GH: 01710164 Caltha leptosepala de Candolle USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 891 1937-6-26
GH: 01657185 Clematis scottii Porter & J. M. Coulter USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1807 1937-7-3
GH: 01658254 Delphinium barbeyi (Huth) Huth USA: Colorado near Lake Brennan at the base of Ruby Peak, ... R. C. Rollins 2005 1937-9-6
GH: 01659003 Delphinium geyeri Greene USA: Utah Dry eastern slope of Big Pack Mountain, 4 mi... R. C. Rollins 1713 1937-6-15
GH: 01659005 Delphinium geyeri Greene USA: Utah near Sheep Creek, 7 miles south of Manila R. C. Rollins 1771 1937-6-17
GH: 01838974 Thalictrum fendleri Engelmann ex A. Gray USA: Colorado 2 miles north of the Pergatoire River, 26 mi... R. C. Rollins 1808 1937-7-3
Rosaceae GH: 01587150 Cercocarpus ledifolius Nuttall USA: Colorado Uncompahgre Plateau, 31 miles southwest of W... R. C. Rollins 1929 1937-8-12
GH: 01647668 Crataegus saligna Greene USA: Colorado Along Antelope Creek, 5 miles northwest of G... R. C. Rollins 2013 1937-9-8
GH: 01865657 Crataegus sp. USA: Colorado along a creek 8 miles south of Iola R. C. Rollins 2009 1937-9-7
GH: 00994542 Holodiscus discolor (Pursh) Maximowicz USA: Colorado north slope of Raton Mesa, San Francisco Can... R. C. Rollins 1841 1937-7-11
GH: 00249403 Peraphyllum ramosissimum Nuttall USA: Colorado Near Plateau Creek, 8 miles northeast of Col... R. C. Rollins 1918 1937-8-11
GH: 01590525 Physocarpus monogynus (Torrey) J. M. Coulter USA: Colorado near the top of the north slope of Raton Mes... R. C. Rollins 1856 1937-7-11
Rutaceae GH: 01545905 Ptelea trifoliata Linnaeus USA: Colorado north slope of Mesa de Maya, 60 miles east o... R. C. Rollins 1836 1937-7-10
Santalaceae GH: 01932997 Comandra umbellata pallida (A. de Candolle) Piehl USA: Wyoming Near Blacks Fork River, 3 miles north of Lym... R. C. Rollins 1644 1937-6-10
Saxifragaceae GH: 01735936 Heuchera versicolor Greene USA: Colorado slope of Raton Mesa, head of San Francisco C... R. C. Rollins 1851 1937-7-11
GH: 01737498 Jamesia americana Torrey & A. Gray USA: Colorado north slopes of Raton Mesa near San Francisc... R. C. Rollins 1855 1937-7-11
Scrophulariaceae GH: 01841890 Erythranthe guttata (de Candolle) G. L. Nesom USA: Utah 18 miles north of Vernal, Uinta Basin R. C. Rollins 1762 1937-6-17
Solanaceae GH: 01541155 Physalis hederifolia cordifolia (A. Gray) Waterfall USA: Colorado near West Creek, Unaweep Canyon, 15 miles ea... R. C. Rollins 1915 1937-8-9
Tamaricaceae GH: 01942265 Tamarix gallica Linnaeus USA: Colorado along the Arkansas River, near Las Animas R. C. Rollins 1878 1937-7-28
