FH: 00265132 Diderma spumarioides (Fries) Fries USA: Idaho In the Thatuna Hills (Moscow Mts.) R. C. Rollins 1935-5-18
Aceraceae GH: 01870995 Acer glabrum Torrey USA: Wyoming Along Nash's Fork at Nelson's Ranch, 1 mile ... R. C. Rollins 947 1935-7-3
Asteraceae GH: 02020736 Cirsium drummondii acaulescens (A. Gray) J. F. Macbride USA: Colorado near the Denver Camp, south side of Willow C... R. C. Rollins 1021 1935-7-18
GH: 02348017 Erigeron eatonii A. Gray USA: Wyoming Nelson ranch, 1 mile north of Centennial R. C. Rollins 937 1935-7-3
Boraginaceae GH: 02026753 Eritrichium nanum elongatum (Rydberg) Cronquist USA: Wyoming 1 mile north of the University of Wyoming Su... R. C. Rollins 895 1935-6-26
GH: 02058259 Mertensia lanceolata nivalis (S. Watson) L. C. Higgins USA: Wyoming 3 miles west of the University of Wyoming Su... R. C. Rollins 1003 1935-7-13
GH: 02060658 Oreocarya glomerata (Pursh) Greene USA: Wyoming 4 miles east of Centennial R. C. Rollins 948 1935-7-3
GH: 02061386 Oreocarya virgata (Porter) Greene USA: Wyoming 3 miles southeast of Centennial R. C. Rollins 918 1935-6-30
GH: 02143468 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: Wyoming near the Four Bridges of Nash's Fork, 3 mile... R. C. Rollins 956 1935-7-3
Brassicaceae GH: 01153867 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Colorado south slope of Willow Creek Pass R. C. Rollins 1040 1935-7-18
GH: 00946726 Boechera pauciflora (Nuttall) Windham & Al-Shehbaz USA: Washington [data not captured] R. C. Rollins 860 1935-4-21
GH: 01155137 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado About 5 miles north of Grand Lake R. C. Rollins 1018 1935-7-17
GH: 01155139 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado about 6 miles north of Grand Lake, Rocky Mou... R. C. Rollins 1036 1935-7-17
GH: 01155160 Boechera retrofracta (Graham) A. Löve & D. Löve USA: Colorado about 6 miles north of Grand Lake, Rocky Mou... R. C. Rollins 1036 1935-7-17
GH: 00948810 Boechera stricta (Graham) Al-Shehbaz USA: Colorado Roadside on the south slope of Willow Creek ... R. C. Rollins 1039 1935-7-18
GH: 00948811 Boechera stricta (Graham) Al-Shehbaz USA: Colorado Roadside about 6 miles north of Grand Lake R. C. Rollins 1038 1935-7-17
GH: 00948815 Boechera stricta (Graham) Al-Shehbaz USA: Colorado at Denver Camp, Willow Creek Pass R. C. Rollins 1028 1935-7-18
GH: 00944070 Boechera stricta (Graham) Al-Shehbaz USA: Wyoming below Vedauwoo Glen R. C. Rollins 991a 1935-7-11
GH: 00944093 Boechera stricta (Graham) Al-Shehbaz USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 1050 1935-7-23
GH: 00986135 Crucihimalaya virgata (Nuttall) D. A. German & A. L. Ebel USA: Wyoming near Crow Creek, Laramie Hills R. C. Rollins 983 1935-7-11
GH: 00992079 Draba oligosperma Hooker USA: Wyoming 4 miles southeast of Centennial, Centennial ... R. C. Rollins 961 1935-7-3
GH: 01550854 Noccaea fendleri glauca (A. Nelson) Al-Shehbz & M. Koch USA: Wyoming above the University of Wyoming Summer Camp,... R. C. Rollins 969 1935-7-7
GH: 01687571 Physaria ludoviciana (Nuttall) O'Kane & Al-Shehbaz USA: Wyoming of the Centennial Valley, 4 miles southeast ... R. C. Rollins 965 1935-7-3
GH: 01733214 Turritis glabra Linnaeus USA: Wyoming below Vedawoo Glen, Laramie Hills R. C. Rollins 991 1935-7-11
Caryophyllaceae GH: 01741288 Arenaria congesta Nuttall USA: Wyoming Nash's Fork above Nelson's Ranch, 1 mile nor... R. C. Rollins 939 1935-7-3
GH: 01741558 Arenaria hookeri Nuttall ex Torrey & A. Gray USA: Wyoming 2 miles southeast of Centennial R. C. Rollins 907 1935-6-30
GH: 01714604 Paronychia depressa (A. Gray & Torrey) Nuttall ex A. Nelson USA: Wyoming between Crow Creek and Vedawoo Glenn, Larami... R. C. Rollins 997 1935-7-11
GH: 01752792 Silene menziesii Hooker USA: Colorado near Denver Camp, Willow Creek Pass R. C. Rollins 1026 1935-7-18
Ericaceae GH: 01594245 Kalmia microphylla (Hooker) A. Heller USA: Wyoming at the base of Brooklyn Ridge, Medicine Bow ... R. C. Rollins 1067 1935-7-25
GH: 01684980 Pyrola chlorantha Swartz USA: Colorado 5 miles north of Grand Lake R. C. Rollins 1033 1935-7-17
Fabaceae GH: 02067736 Astragalus agrestis G. Don USA: Wyoming near Nash's Fork, 4 miles southeast of Cente... R. C. Rollins 952 1935-7-3
GH: 02044147 Astragalus drummondii Douglas ex Hooker USA: Wyoming Nelson's Ranch, 1 mile north Centennial R. C. Rollins 928 1935-7-3
GH: 02049895 Astragalus parryi A. Gray USA: Wyoming below Tie City, Laramie Hills R. C. Rollins 985 1935-7-10
GH: 02149288 Lathyrus leucanthus Rydberg USA: Colorado near Denver Camp, Willow Creek Pass R. C. Rollins 1025 1935-7-18
GH: 02086483 Lupinus alpestris (A. Nelson) D. B. Dunn & J. M. Gillett USA: Wyoming 1/2 mile west of the University of Wyoming S... R. C. Rollins 1009 1935-7-14
GH: 02131062 Oxytropis lambertii bigelovii A. Gray USA: Wyoming near the Four Bridges on Nash's Fork, 3 mile... R. C. Rollins 943 1935-7-3
GH: 02342669 Trifolium dasyphyllum Torrey & A. Gray USA: Wyoming near Towner Lake, Medicine Bow Mountains R. C. Rollins 902 1935-6-30
GH: 02343795 Trifolium parryi A. Gray USA: Wyoming about 3 miles west of the University of Wyom... R. C. Rollins 1002 1935-7-13
Gentianaceae GH: 02166860 Menyanthes trifoliata minor Rafinesque USA: Wyoming 1 mile west of Lake Marie, Medicine Bow Moun... R. C. Rollins 1064 1935-7-24
Geraniaceae GH: 01864503 Geranium fremontii Torrey ex A. Gray USA: Wyoming near Crow Creek, Laramie Hills R. C. Rollins 975 1935-7-11
Lamiaceae GH: 01696992 Scutellaria brittonii Porter USA: Wyoming in the vicinity of Vedawood Glen R. C. Rollins 992 1935-7-11
Onagraceae GH: 01778688 Gayophytum diffusum parviflorum F.H. Lewis & Szweyk. USA: Wyoming near the Four Bridges on Nash's Fork, about ... R. C. Rollins 955 1935-7-3
GH: 01778689 Gayophytum racemosum Torrey & A. Gray USA: Wyoming near the Four Bridges on Nash's Fork, about ... R. C. Rollins 955 1935-7-3
Orchidaceae AMES: 02045768 Platanthera hyperborea (Linnaeus) Lindley USA: Wyoming along a fork of Nashs Fork River, 4 miles so... R. C. Rollins 953 1935-7-3
Orobanchaceae GH: 01876816 Castilleja flava S. Watson USA: Wyoming near Pole Creek below Tie City, Laramie Hill... R. C. Rollins 986 1935-7-10
GH: 01877657 Castilleja linariaefolia Bentham USA: Wyoming Nelson's Ranch, 1 mile north of Centennial R. C. Rollins 931 1935-7-3
GH: 01879181 Castilleja septentrionalis Lindley USA: Wyoming Nash's Fork, 1 mile north of Centennial R. C. Rollins 933 1935-7-3
GH: 02080910 Pedicularis groenlandica Retzius USA: Wyoming one-fourth mile east of the University of Wy... R. C. Rollins 1051 1935-7-23
GH: 02079840 Pedicularis parryi A. Gray USA: Wyoming one-half mile west of the University of Wyom... R. C. Rollins 1008 1935-7-14
Plantaginaceae GH: 01998881 Collinsia parviflora Lindley USA: Wyoming hillside near Libby Falls, Libby Creek, Medi... R. C. Rollins 901 1935-6-27
GH: 02120808 Penstemon laricifolius exilifolius (A. Nelson) D. D. Keck USA: Wyoming On the Laramie Plains west of Laramie R. C. Rollins 974 1935-7-7
GH: 02122333 Penstemon rydbergii A. Nelson USA: Wyoming west of Sheep Mt., in the Centennial Valley R. C. Rollins 968 1935-7-6
GH: 02122803 Penstemon strictus Bentham USA: Wyoming along the Little Laramie River, 2 miles sout... R. C. Rollins 922 1935-6-30
GH: 01801140 Penstemon unilateralis Rydberg USA: Wyoming near Crow Creek, Laramie Hills R. C. Rollins 978 1935-7-11
GH: 01801275 Penstemon virens Pennell ex Rydberg USA: Wyoming knolls of the Centennial Valley, 2 miles sou... R. C. Rollins 910 1935-6-30
GH: 01801416 Penstemon whippleanus A. Gray USA: Colorado Trail Ridge Road, Rocky Mountain National Pa... R. C. Rollins 1020 1935-7-17
GH: 01801440 Penstemon whippleanus A. Gray USA: Colorado Willow Creek Pass southern slope R. C. Rollins 1017 1935-7-18
GH: 01804042 Plantago tweedyi A. Gray USA: Wyoming valley below the University of Wyoming Summe... R. C. Rollins 1054 1935-7-23
Polemoniaceae GH: 00985142 Ipomopsis aggregata (Pursh) V. E. Grant USA: Colorado Denver Camp, Willow Creek Pass R. C. Rollins 1027 1935-7-18
GH: 00954324 Linanthus pungens (Torrey) J. M. Porter & L. A. Johnson USA: Wyoming Centennial Valley, 2 miles southeast of Cent... R. C. Rollins 908 1935-6-30
GH: 01686555 Phlox pulvinata (Wherry) Cronquist USA: Wyoming south of the University of Wyoming Summer Ca... R. C. Rollins 884 1935-6-25
GH: 01717090 Polemonium viscosum Nuttall USA: Wyoming 1 mile north of the University of Wyo. Summe... R. C. Rollins 893 1935-6-26
Polygonaceae GH: 02043739 Eriogonum umbellatum majus Bentham USA: Wyoming near Nash's Fork, Nelson's Ranch, 1 mile nor... R. C. Rollins 941 1935-7-3
GH: 02364051 Oxyria digyna (Linnaeus) Hill USA: Wyoming southeast face of Brooklyn Ridge, Medicine B... R. C. Rollins 1069 1935-7-25
Portulacaceae GH: 01858816 Claytonia lanceolata Pursh USA: Wyoming near Nash's Fork, below the University of Wy... R. C. Rollins 880 1935-6-23
GH: 01859840 Lewisia pygmaea (A. Gray) B. L. Robinson USA: Wyoming 3 miles west of the University of Wyoming Su... R. C. Rollins 1005 1935-7-13
GH: 01859923 Lewisia rediviva Pursh USA: Wyoming 2 miles southeast of Centennial R. C. Rollins 914 1935-6-30
GH: 01860366 Montia chamissoi (Ledebour ex Sprengel) Greene USA: Wyoming in the vicinity of Vedawoo Glen, Laramie Mou... R. C. Rollins 993 1935-7-11
Primulaceae GH: 01922798 Dodecatheon pulchellum (Rafinesque) Merrill USA: Wyoming near Nash's Fork, about 3 miles southeast of... R. C. Rollins 1935-7-20
GH: 01927617 Primula angustifolia Torrey USA: Colorado Rocky Mountain Nat. Park R. C. Rollins 1032 1935-7-17
GH: 01927865 Primula incana M. E. Jones USA: Wyoming 3 miles southeast of Centennial R. C. Rollins 915 1935-6-30
GH: 01926332 Primula parryi A. Gray USA: Wyoming near Towner Lake, Medicine Bow Mountains R. C. Rollins 1059 1935-7-23
Pucciniaceae FH: 01001064 Puccinia heucherae (Schweinitz) Dietel USA: Washington Almota Canyon R. C. Rollins 1935-5-25
FH: 01001927 Puccinia jonesii Peck USA: Washington Grand Coulee 1/2 mi. north of Park Lake R. C. Rollins 1935-4-20
Ranunculaceae GH: 01720323 Aconitum columbianum Nuttall USA: Wyoming Pole Creek near Tie City, Laramie Hills R. C. Rollins 984 1935-7-11
GH: 01707174 Anemone multifida Poiret USA: Wyoming Bleak knolls near Nash's Fork, Brooklyn Lodg... R. C. Rollins 903 1935-6-30
GH: 01707290 Anemone multifida Poiret USA: Colorado near the Denver Camp, Willow Creek Canyon R. C. Rollins 1035 1935-7-18
GH: 01708172 Anemone patens multifida Pritzel USA: Wyoming 1 mile north of the University of Wyoming Su... R. C. Rollins 894 1935-6-26
GH: 01709011 Aquilegia coerulea James USA: Wyoming 3 miles west of the University of Wyo. Summe... R. C. Rollins 1005 1935-7-13
GH: 01656323 Clematis columbiana (Nuttall) Torrey & A. Gray USA: Wyoming Nelson's Ranch 1 mile north of Centennial R. C. Rollins 929 1935-7-3
GH: 01659610 Delphinium nuttallianum Pritzel ex Walpers USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 1053 1935-7-23
GH: 01662228 Ranunculus acriformis A. Gray USA: Wyoming 3 miles southeast of Centennial R. C. Rollins 916 1935-6-30
GH: 01662438 Ranunculus adoneus A. Gray USA: Colorado Milner Pass, Rocky Mountain National Park. R. C. Rollins 1014 1935-7-17
GH: 01662606 Ranunculus alismifolius montanus S. Watson USA: Wyoming near Nash's Fork, 2 miles below University o... R. C. Rollins 879 1935-6-23
GH: 01665541 Ranunculus inamoenus alpeophilus (A. Nelson) L. D. Benson USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 924 1935-7-1
GH: 01840255 Trollius albiflorus (A. Gray) Rydberg USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 890 1935-6-26
Rosaceae GH: 01567783 Potentilla glaucophylla Lehmann USA: Wyoming Bare knoll 1/2 mile south of the University ... R. C. Rollins 883 1935-6-25
GH: 01567956 Potentilla gracilis Douglas ex Hooker USA: Wyoming near Vedawoo Glenn, Laramie Hills R. C. Rollins 995 1935-7-11
GH: 01556686 Purshia tridentata (Pursh) de Candolle USA: Wyoming 1 mile north of Centennial R. C. Rollins 932 1935-7-3
GH: 01602964 Rubus arcticus acaulis (Michaux) Focke USA: Colorado at the Denver Camp, south side of Willow Cre... R. C. Rollins 1024 1935-7-18
Saxifragaceae GH: 01735600 Heuchera parvifolia Nuttall ex Torrey & A. Gray USA: Wyoming near Nash's Fork, above Nelson's Ranch, 1 mi... R. C. Rollins 938 1935-7-3
GH: 01712467 Micranthes rhomboidea (Greene) Small USA: Wyoming 1 mile east of the University of Wyoming Sum... R. C. Rollins 881 1935-6-23
GH: 01616454 Mitella pentandra Hooker USA: Wyoming near Libby Falls, Libby Creek, Medicine Bow ... R. C. Rollins 898 1935-6-27
GH: 01886838 Ribes lacustre parvulum A. Gray USA: Wyoming 1 mile east of the University of Wyoming Sum... R. C. Rollins 887 1935-6-26
GH: 01619034 Saxifraga arguta D. Don USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 1065 1935-7-25
Violaceae GH: 02145071 Viola bellidifolia Greene USA: Wyoming near the University of Wyoming Summer Camp, ... R. C. Rollins 971 1935-7-7
GH: 02208776 Viola praemorsa linguifolia (Nuttall) M. S. Baker USA: Wyoming about the University of Wyoming Summer Camp,... R. C. Rollins 892 1935-6-26
GH: 02211554 Viola sororia missouriensis (Greene) L. E. McKinney USA: Wyoming above the University of Wyoming Summer Camp,... R. C. Rollins 972 1935-7-7