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Amaranthaceae
GH: 01929371 Amaranthus retroflexus Linnaeus USA: Colorado Fort Collins: Waste places J. H. Cowen 2153 1896-7-24
Anacardiaceae
GH: 01867539 Rhus glabra Linnaeus USA: Colorado Vicinity of Arthurs Rock J. H. Cowen 1895-7-20
GH: 01869333 Toxicodendron rydbergii (Small ex Rydberg) Greene USA: Colorado Poudre R. J. H. Cowen 126 1893-6-23
Asclepiadaceae
GH: 00961064 Asclepias pumila (A. Gray) Vail USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1517 1896-7-31
Asteraceae
GH: 00968448 Artemisia cana Pursh USA: Colorado Breckenridge: [no additional data] J. H. Cowen 2652 1896-8-27
GH: 02020855 Cirsium flodmanii (Rydberg) Arthur USA: Colorado Fort Collins J. H. Cowen 2797 1896-7-28
GH: 02021020 Cirsium sp. USA: Colorado Southeast of Hotchkiss J. H. Cowen 1892-7-2
GH: 02142389 Crepis atribarba A. Heller USA: Colorado Hills northwest of Soldier Cañon J. H. Cowen 69 1895-6-20
GH: 02142898 Crepis runcinata Torrey & A. Gray USA: Colorado Tobe Miller's meadow J. H. Cowen 71 1895-6-1
GH: 02348632 Erigeron formosissimus viscidus (Rydberg) Cronquist USA: Colorado East - bank of Pondre near lower city bridge J. H. Cowen 60 1895-7-5
GH: 02348929 Erigeron glacialis (Nuttall) A. Nelson USA: Colorado Between Como and Boreas J. H. Cowen 63 1895-8-2
GH: 02351436 Erigeron speciosus de Candolle USA: Colorado west Gunnison Co. J. H. Cowen 59 1892-8-3
GH: 02351691 Erigeron strigosus Muhlenberg ex Willdenow USA: Colorado Vicinity of Arthur's Rock J. H. Cowen 58 1895-7-20
GH: 01834782 Lactuca sativa Linnaeus USA: Colorado Fort Collins: [no additional data] J. H. Cowen 3288 1896-7-25
GH: 01834994 Lactuca tatarica (Linnaeus) C. A. Meyer USA: Colorado Fort Collins: [no additional data] J. H. Cowen 3284 1896-7-24
Betulaceae
GH: 02198808 Alnus incana tenuifolia (Nuttall) Breitung USA: Colorado Rist Canon J. H. Cowen 2299 1897-7-11
Brassicaceae
GH: 00960556 Arabis hirsuta pycnocarpa (M. Hopkins) Rollins USA: Colorado Foothills J. H. Cowen 41 1895-7-15
GH: 01098765 Cardamine breweri S. Watson USA: Colorado Fort Collins: [no additional data] J. H. Cowen 44 1895-5-17
GH: 01098766 Cardamine breweri S. Watson USA: Colorado [no additional data] J. H. Cowen 44 1895-8-8
GH: 00986673 Descurainia pinnata (Walter) Britton USA: Colorado [no additional data] J. H. Cowen 64 1895-7-2
GH: 01155428 Descurainia pinnata brachycarpa (Richardson) Detling USA: Colorado Fort Collins J. H. Cowen 64 1891-4-29
GH: 01106030 Draba crassifolia Graham USA: Colorado Mountain near Boreas J. H. Cowen 50 1895-8-2
GH: 01538234 Erysimum capitatum argillosum (Greene) R. J. Davis USA: Colorado Mountain northeast of Boreas. J. H. Cowen 54 1895-8-2
GH: 01538547 Erysimum cheiranthoides Linnaeus USA: Colorado Fort Collins: [no additional data] J. H. Cowen 55 1895-7-1
GH: 01548305 Lepidium densiflorum macrocarpum G. A. Mulligan USA: Colorado Fort Collins: [no additional data] J. H. Cowen 56 1895-6-11
GH: 01548306 Lepidium densiflorum macrocarpum G. A. Mulligan USA: Colorado [Fort Collins] J. H. Cowen
GH: 01549893 Lepidium virginicum medium (Greene) C. L. Hitchcock USA: Colorado Foothills J. H. Cowen 57 1895-6-17
GH: 01575531 Physaria fendleri (A. Gray) O'Kane & Al-Shehbaz USA: Colorado Florence J. H. Cowen 58 1892-6-14
GH: 01692793 Rorippa palustris hispida (Desvaux) Rydberg USA: Colorado Fort Collins: [no additional data] J. H. Cowen 61 1895-6-14
GH: 01692794 Rorippa palustris hispida (Desvaux) Rydberg USA: Colorado [no additional data] J. H. Cowen 1895-7-2
GH: 01693038 Rorippa sinuata (Nuttall) Hitchcock USA: Colorado Fort Collins; 5000 ft J. H. Cowen 62 1893-6-21
GH: 01716594 Stanleya albescens M. E. Jones USA: Colorado Bank of Gunnison River above Delta J. H. Cowen 67 1892-6-18
GH: 01716654 Stanleya pinnata (Pursh) Britton USA: Colorado Soldier Canon - Foothills J. H. Cowen 68 1895-7-15
GH: 01733072 Turritis glabra Linnaeus USA: Colorado Foothills J. H. Cowen 43 1895-7-15
GH: 01733075 Turritis glabra Linnaeus USA: Colorado Hills south of Horse Tooth Mt J. H. Cowen 6 1895-6-17
Caryophyllaceae
GH: 01741178 Arenaria congesta Nuttall USA: Colorado Oak Mesa J. H. Cowen 78 1892-7-6
GH: 01743395 Cerastium brachypodum (Engelmann ex A. Gray) B. L. Robinson USA: Colorado Gulch - Eastern Foot-hills J. H. Cowen 87 1895-6-1
GH: 01713664 Minuartia rubella (Wahlenberg) Hiern USA: Colorado Mountain northeast of Boreas. J. H. Cowen 84 1895-8-2
GH: 01713996 Moehringia lateriflora (Linnaeus) Fenzl USA: Colorado Loroux Creek J. H. Cowen 81 1892-7-10
GH: 01751404 Silene acaulis subacaulescens (F. N. Williams) C. L. Hitchcock & B. Maguire USA: Colorado Mountain northeast of Boreas. J. H. Cowen 90 1895-8-2
GH: 01751484 Silene antirrhina Linnaeus USA: Colorado Hills above Soldier Canon. J. H. Cowen 91 1895-6-20
GH: 01752795 Silene menziesii Hooker USA: Colorado Leroux Creek J. H. Cowen 92 1892-7-10
Chenopodiaceae
GH: 02003149 Atriplex canescens (Pursh) Nuttall USA: Colorado Hotchkiss J. H. Cowen 114 1892-7-25
GH: 02003121 Atriplex canescens (Pursh) Nuttall USA: Colorado Hotchkiss J. H. Cowen 115 1892-6-30
GH: 02003487 Atriplex confertifolia (Torrey & Fremont) Watson USA: Colorado Hotchkiss. J. H. Cowen 109 1892-6-21
GH: 02003479 Atriplex confertifolia (Torrey & Fremont) Watson USA: Colorado Hotchkiss. J. H. Cowen 116 1892-6-21
GH: 02003606 Atriplex corrugata S. Watson USA: Colorado Between Hotchkiss and Smith Fork. J. H. Cowen 117 1892-7-2
GH: 02003624 Atriplex cuneata A. Nelson USA: Colorado between Hotchkiss & Smith's Fork J. H. Cowen 113 1892-7-2
GH: 02003621 Atriplex cuneata A. Nelson USA: Colorado Between Hotchkiss and Crawford. J. H. Cowen 118 1892-7-2
GH: 02003620 Atriplex cuneata A. Nelson USA: Colorado between Hotchkiss & Delta J. H. Cowen 110 1892-6-18
GH: 02003720 Atriplex dioica Rafinesque USA: Colorado College Farm. J. H. Cowen 123 1891-8-11
GH: 00036882 Atriplex gardneri cuneata (A. Nelson) Welsh USA: Colorado Delta: J. H. Cowen 4071 1897-9-3
GH: 02003987 Atriplex hortensis Linnaeus USA: Colorado Along the Poudre, 2-3 miles s.-e. J. H. Cowen 120 1895-8-26
GH: 00036882 Atriplex oblanceolata Rydberg USA: Colorado Delta: J. H. Cowen 4071 1897-9-3
GH: 01826608 Atriplex powellii S. Watson USA: Colorado Between Hotchkiss and Smith Fork. J. H. Cowen 124 1892-7-2
GH: 01826601 Atriplex powellii S. Watson USA: Colorado Hotchkiss J. H. Cowen 2185 1897-9-5
Cornaceae
GH: 02019019 Cornus stolonifera Michaux USA: Colorado Fort Collins J. H. Cowen 271 1895-7-1
Crassulaceae
GH: 01991507 Sedum lanceolatum Torrey USA: Colorado Foothills J. H. Cowen 223 1895-7-15
Cucurbitaceae
GH: 01544064 Echinocystis lobata (Michaux) Torrey & A. Gray USA: Colorado [no additional data] J. H. Cowen 1891-8-17
Cyperaceae
GH: 00139231 Eleocharis coloradoensis Britton USA: Colorado Shore Lake J. H. Cowen 2576 1896
Fabaceae
GH: 01967855 Amorpha fruticosa Linnaeus USA: Colorado South of Ft Collins J. H. Cowen 127 1895-6-13
GH: 02067617 Astragalus agrestis G. Don USA: Colorado College Premises. J. H. Cowen 136 1895-7-6
GH: 02064661 Astragalus bisulcatus (Hooker) A. Gray USA: Colorado Fort Collins: [no additional data] J. H. Cowen 135 1895-6-12
GH: 02064670 Astragalus bisulcatus (Hooker) A. Gray USA: Colorado Fort Collins: [no additional data] J. H. Cowen 130 1895-6-12
GH: 02044501 Astragalus flexuosus (Hooker) Douglas ex G. Don USA: Colorado Hills N.W. of Soldier Cañon. J. H. Cowen 133 1895-6-20
GH: 02044502 Astragalus flexuosus (Hooker) Douglas ex G. Don USA: Colorado College farm. J. H. Cowen 19 1895-6-7
GH: 02049280 Astragalus mollissimus Torrey USA: Colorado S.E. Fort Collins. J. H. Cowen 138 1895-6-12
GH: 02030129 Astragalus tridactylicus A. Gray USA: Colorado NE of Ft Collins. J. H. Cowen 140 1895-6-1
GH: 01885027 Dalea candida oligophylla (Torrey) Shinners USA: Colorado East bank of Cache la Pondre[?] J. H. Cowen 156 1891-7-18
GH: 01885028 Dalea candida oligophylla (Torrey) Shinners USA: Colorado Colorado J. H. Cowen 1895-8-9
GH: 01885220 Dalea compacta Sprengel USA: Colorado [no additional data] J. H. Cowen 157 1891-7-23
GH: 01959586 Glycyrrhiza lepidota Nuttall ex Pursh USA: Colorado Along the lache la Poudre J. H. Cowen 1893-7-22
GH: 01959587 Glycyrrhiza lepidota Nuttall ex Pursh USA: Colorado Along the lache la Poudre J. H. Cowen 142 1893-7-23
GH: 02085053 Lupinus argenteus Pursh USA: Colorado Horsetooth Mt J. H. Cowen 148 1895-6-17
GH: 02085054 Lupinus argenteus Pursh USA: Colorado Redstone Canon J. H. Cowen 1890-8-9
GH: 02085272 Lupinus argenteus spathulatus (Rydberg) L. W. Hess & D. B. Dunn USA: Colorado Breckenridge J. H. Cowen 140 1896-8-27
GH: 02085654 Lupinus brevicaulis S. Watson USA: Colorado Hotchkiss J. H. Cowen 147 1892-6-22
GH: 02128143 Lupinus pusillus Pursh USA: Colorado La Porte. J. H. Cowen 149 1895-6-1
GH: 02128144 Lupinus pusillus Pursh USA: Colorado Fort Collins J. H. Cowen 1893-6-23
GH: 02129959 Medicago sativa Linnaeus USA: Colorado Larimer County J. H. Cowen 151 1895-6-14
GH: 02132863 Oxytropis lambertii Pursh USA: Colorado Horsetooth Mt. J. H. Cowen 153 1895-6-17
GH: 02132864 Oxytropis lambertii Pursh USA: Colorado River Flats - Ft. Collins J. H. Cowen 1895-6-27
GH: 02133768 Psoralidium tenuiflorum (Pursh) Rydberg USA: Colorado Fort Collins: Waste places J. H. Cowen 975 1896-7-29
GH: 02133765 Psoralidium tenuiflorum (Pursh) Rydberg USA: Colorado Fort Collins: [no additional data] J. H. Cowen 159 1893-7-10
GH: 02135463 Sophora nuttalliana B. L. Turner USA: Colorado Along the Cache la Poudre [River] J. H. Cowen 161 1893-6-23
GH: 02135462 Sophora nuttalliana B. L. Turner USA: Colorado Along the Cache la Poudre J. H. Cowen 1894-8-1
GH: 02342641 Trifolium dasyphyllum Torrey & A. Gray USA: Colorado Mountain N-E of Boreas. J. H. Cowen 163 1895-8-2
GH: 02343761 Trifolium parryi A. Gray USA: Colorado Head of Leroux Creek. J. H. Cowen 166 1892-7-21
Gentianaceae
GH: 02167614 Gentianella amarella heterosepala (Engelmann) J. M. Gillett USA: Colorado Leroux Creek J. H. Cowen 92 1892-7-16
GH: 02164418 Zeltnera arizonica (A. Gray) G. Mansion USA: Colorado Hotchkiss J. H. Cowen 85 1892-8-10
GH: 02164419 Zeltnera arizonica (A. Gray) G. Mansion USA: Colorado Hotchkiss J. H. Cowen 85 1892-8-10
Geraniaceae
GH: 01864477 Geranium fremontii Torrey ex A. Gray USA: Colorado Vicinity Arthurs Rock J. H. Cowen 112 1895-7-20
Hippuridaceae
GH: 02000440 Hippuris vulgaris Linnaeus USA: Colorado Hotchkiss J. H. Cowen 224 1892-6-22
Hydrangeaceae
GH: 01750749 Fendlera falcata Thornber ex Wooton & Standley USA: Colorado Oak Mesa J. H. Cowen 1892-7-7
Lamiaceae
GH: 01551710 Mentha canadensis Linnaeus USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1725 1896-7-31
Linaceae
GH: 02053175 Linum lewisii Pursh USA: Colorado Entrance to Soldier Canon J. H. Cowen 110 1895-7-15
Malvaceae
GH: 02199520 Sphaeralcea coccinea (Nuttall) Rydberg USA: Colorado College Farm J. H. Cowen 106 1895-6-12
Nyctaginaceae
GH: 01846002 Mirabilis linearis (Pursh) Heimerl USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1896-7-25
Onagraceae
GH: 01625957 Camissonia scapoidea (Torrey & A. Gray) P. H. Raven USA: Colorado Hotchkiss J. H. Cowen 243 1892-6-30
GH: 01625958 Camissonia scapoidea (Torrey & A. Gray) P. H. Raven USA: Colorado Hotchkiss J. H. Cowen 39 1892-6-20
GH: 01672094 Epilobium brachycarpum C. Presl USA: Colorado Foothills J. H. Cowen 232 1891-7-21
GH: 01672787 Epilobium ciliatum Rafinesque USA: Colorado La Porte J. H. Cowen 227 1895-7-24
GH: 01777898 Gaura coccinea glabra (Lehmann) Munz USA: Colorado Fort Collins: [no additional data] J. H. Cowen 235 1891-6-26
GH: 00054117 Gaura coloradensis Rydberg USA: Colorado Fort Collins: J. H. Cowen 234 1895-7-8
GH: 00054117 Gaura neomexicana coloradensis (Rydberg) P. H. Raven & D. P. Gregory USA: Colorado Fort Collins: J. H. Cowen 234 1895-7-8
GH: 01778256 Gaura parviflora glabra Munz USA: Colorado Fort Collins: [no additional data] J. H. Cowen 236 1895-7-5
GH: 01778561 Gayophytum diffusum parviflorum F.H. Lewis & Szweyk. USA: Colorado Foothills J. H. Cowen 238 1895-7-15
GH: 01780911 Oenothera albicaulis Nuttall USA: Colorado Fort Collins: [no additional data] J. H. Cowen 245 1895-5-15
GH: 01645436 Oenothera caespitosa Nuttall USA: Colorado Hotchkiss J. H. Cowen 242 1892-7-2
GH: 01645571 Oenothera coronopifolia A. Gray & Torrey USA: Colorado outside the foothills J. H. Cowen 244 1895-6-20
GH: 01645937 Oenothera flava (A. Nelson) Garrett USA: Colorado Head of Leroux Creek J. H. Cowen 40 1892-7-18
GH: 01644309 Oenothera howardii M. E. Jones ex Prain USA: Colorado outside the foothills J. H. Cowen 241 1894-6-1
GH: 01642060 Oenothera villosa Thunberg USA: Colorado Fort Collins: [no additional data] J. H. Cowen 240 1895-7-8
Oxalidaceae
GH: 01585891 Oxalis stricta Linnaeus USA: Colorado Near Fort Collins; along the Poudre. J. H. Cowen 114 1893-7-17
Papaveraceae
GH: 01738489 Corydalis aurea occidentalis (Engelmann ex A. Gray) Ownbey USA: Colorado Foothills J. H. Cowen 38 1893-5-20
GH: 01738574 Corydalis caseana brandegei (S. Watson) Ownbey USA: Colorado Leroux Parks J. H. Cowen 39 1892-7-17
Plantaginaceae
GH: 02212552 Callitriche palustris Linnaeus USA: Colorado Stove Prairie J. H. Cowen 225 1895-8-20
GH: 02118559 Penstemon crandallii procumbens (Greene) D. D. Keck USA: Colorado Ragged Mountain. J. H. Cowen 1892-8-5
GH: 02119721 Penstemon glaber Pursh USA: Colorado Horsetooth Mt. J. H. Cowen 4201 1896-6-18
GH: 01801258 Penstemon virens Pennell ex Rydberg USA: Colorado Horse Tooth Mt. J. H. Cowen 104 1895-6-17
GH: 01801454 Penstemon whippleanus A. Gray USA: Colorado Leroux Parks J. H. Cowen 103 1892-7-19
Polygonaceae
GH: 01851360 Eriogonum jamesii flavescens S. Watson USA: Colorado Fossil Creek. J. H. Cowen 130 1895-6-19
GH: 02365340 Fallopia convolvulus (Linnaeus) Á. Löve USA: Colorado Fort Collins: [no additional data] J. H. Cowen 3868 1896-7-24
GH: 02360179 Polygonum buxiforme Small USA: Colorado Breckenridge J. H. Cowen 142 1896-8-27
GH: 02360486 Polygonum douglasii Greene USA: Colorado Vicinity of Arthur's Rock. J. H. Cowen 129 1895-7-20
GH: 02005319 Rumex hesperius Greene USA: Colorado Breckenridge J. H. Cowen 143 1896-8-27
GH: 02005633 Rumex obtusifolius Linnaeus USA: Colorado Fort Collins: [no additional data] J. H. Cowen 3832 1897-7-26
Portulacaceae
GH: 01860783 Portulaca oleracea Linnaeus USA: Colorado College Garden. J. H. Cowen 103 1895-7-8
Pucciniaceae
FH: 01022175 Aecidium physalidis Burrill USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1893-6-17
FH: 00940702 Puccinia abundans (Peck) H. S. Jackson USA: Colorado Foothills J. H. Cowen 1893-6-30
FH: 01006215 Puccinia anemones-virginianae Schweinitz USA: Colorado [no additional data] J. H. Cowen 1893-7-19
FH: 00950614 Puccinia delphinii Dietel & Holway USA: Colorado Foot Hills of the Rocky Mts. J. H. Cowen 1903-10-20
FH: 00950389 Puccinia epilobii-tetragoni G. Winter USA: Colorado Foorhills J. H. Cowen 1895-6-17
FH: 00950389 Puccinia gayophyti J. S. Billings USA: Colorado Foorhills J. H. Cowen 1895-6-17
FH: 00951871 Puccinia gayophyti J. S. Billings USA: Colorado [no additional data] J. H. Cowen 1895-8
FH: 00782216 Puccinia lygodesmiae Ellis & Everhart USA: Colorado Fort Collins: [no additional data] J. H. Cowen 98 1893-6-23
FH: 01129196 Puccinia peckii (De Toni) Kellerman USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1893-6-21
FH: 01129197 Puccinia peckii (De Toni) Kellerman USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1895-7-8
FH: 00951871 Puccinia vagans gayophyti (J. S. Billings) Arthur USA: Colorado [no additional data] J. H. Cowen 1895-8
FH: 01125895 Uromyces hyalinus Peck USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1893-6-23
FH: 00783381 Uromyces polygoni (Rabenhorst) Fuckel USA: Colorado Fort Collins: [no additional data] J. H. Cowen 1895-7-8
FH: 00783891 Uromyces proeminens myristica (Berkeley & M. A. Curtis) Arthur USA: Colorado Perkins J. H. Cowen 4035 1/2 1896-7-21
FH: 00783484 Uromyces psoraleae Peck USA: Colorado Foot-hills J. H. Cowen 18 1893-6-30
Ranunculaceae
GH: 01706698 Anemone cylindrica A. Gray USA: Colorado Foothills J. H. Cowen 2 1895-6-20
GH: 01658230 Delphinium barbeyi (Huth) Huth USA: Colorado Mountain near Boreas. J. H. Cowen 15 1895-8-2
GH: 01658638 Delphinium carolinianum penardii (Huth) Warnock USA: Colorado Poudre Flats North of Ft. Collins. J. H. Cowen 153b 1895-6-27
GH: 01658647 Delphinium carolinianum penardii (Huth) Warnock USA: Colorado outside the foothills J. H. Cowen 1895-6-27
GH: 01658988 Delphinium geyeri Greene USA: Colorado Hills south of Horse Tooth mt. J. H. Cowen 153a 1895-6-17
GH: 01658990 Delphinium geyeri Greene USA: Colorado Foothills J. H. Cowen 13 1895-6-17
GH: 01661820 Myosurus minimus montanus G. R. Campbell USA: Colorado Leroux Creek J. H. Cowen 2 1892-7-10
GH: 01661821 Myosurus minimus montanus G. R. Campbell USA: Colorado Leroux Creek J. H. Cowen 16 1894-7-10
GH: 01665732 Ranunculus longirostris Godron USA: Colorado Fort Collins: near river J. H. Cowen 21 1895-7-11
GH: 01838755 Thalictrum dasycarpum Fischer & Ave-Lallemant USA: Colorado Fort Collins: [no additional data] J. H. Cowen 32 1895-7-1
GH: 01838756 Thalictrum dasycarpum Fischer & Ave-Lallemant USA: Colorado Fort Collins: [no additional data] J. H. Cowen 32 1895-7-1
GH: 01838986 Thalictrum fendleri Engelmann ex A. Gray USA: Colorado Leroux Parks J. H. Cowen 31 1892-7-19
GH: 01840201 Trollius albiflorus (A. Gray) Rydberg USA: Colorado Leroux Parks J. H. Cowen 1892-7-18
Rhamnaceae
GH: 01790427 Ceanothus sp. USA: Colorado Vicinity of Arthur's Rock J. H. Cowen 117 1895-7-20
Rosaceae
GH: 01587364 Cercocarpus montanus Rafinesque USA: Colorado [no additional data] J. H. Cowen 169 1895-6-1
GH: 01612829 Crataegus erythropoda Ashe USA: Colorado Foothills J. H. Cowen 1895-7-20
GH: 01608407 Drymocallis fissa (Nuttall) Rydberg USA: Colorado [no additional data] J. H. Cowen 181 1895-6-1
GH: 00994750 Holodiscus discolor dumosus (Nuttall ex Hooker) Dippel USA: Colorado Ragged Mt. J. H. Cowen 198 1892-8-5
GH: 01567416 Potentilla effusa Douglas ex Lehmann USA: Colorado Poudre R. above Ft Collins J. H. Cowen 179 1895-7-12
GH: 01568978 Potentilla nivea Linnaeus USA: Colorado Mountain northeast of Boreas. J. H. Cowen 25 1895-8-2
GH: 01570225 Potentilla rivalis Nuttall USA: Colorado Fort Collins: [no additional data] J. H. Cowen 187 1895-7-8
GH: 01570226 Potentilla rivalis Nuttall USA: Colorado East of College. J. H. Cowen 26 1895-7-8
GH: 01556251 Potentilla sp. USA: Colorado Poudre Flats above Ft. Collins. J. H. Cowen 24 1895-7-12
GH: 01723113 Prunus pensylvanica Linnaeus f. USA: Colorado [no additional data] J. H. Cowen 190 1895-6-1
GH: 01557033 Rosa acicularis sayi (Schweinitz) W. H. Lewis USA: Colorado Gulch west of Pennock's. J. H. Cowen 28 1895-6-1
GH: 01605514 Rubus idaeus strigosus (Michaux) Focke USA: Colorado Horsetooth Mt. J. H. Cowen 196 1895-6-17
Rubiaceae
GH: 02358980 Galium aparine Linnaeus USA: Colorado [no additional data] J. H. Cowen 277 1895-6-3
GH: 02359190 Galium aparine spurium (Linnaeus) Hartman USA: Colorado Fort Collins: [no additional data] J. H. Cowen 278 1895-7-1
GH: 02359229 Galium boreale Linnaeus USA: Colorado Rist Cañon J. H. Cowen 2034 1897-7-11
GH: 02359226 Galium boreale Linnaeus USA: Colorado Foothills [?] J. H. Cowen 280 1895-6-26
Rutaceae
GH: 01584426 Ptelea trifoliata confinis (Greene) V. L. Bailey USA: Colorado Florence J. H. Cowen 115 1892-6-14
Saxifragaceae
GH: 01735025 Heuchera bracteata (Torrey) Seringe USA: Colorado Mountain N.E. of Boreas J. H. Cowen 1895-8-2
GH: 01735026 Heuchera bracteata (Torrey) Seringe USA: Colorado Horsetooth Mt. J. H. Cowen 200 1895-6-17
GH: 01737514 Jamesia americana Torrey & A. Gray USA: Colorado Foothills J. H. Cowen 202 1895-6-1
GH: 01712136 Micranthes oregana (Howell) Small USA: Colorado Leroux Creek J. H. Cowen 217 1892-7-17
GH: 01633772 Ribes cereum Douglas USA: Colorado [no additional data] J. H. Cowen 1895-6-17
GH: 01887405 Ribes odoratum H. Wendland USA: Colorado Foothills J. H. Cowen 491 1896-5-9
GH: 01626514 Ribes wolfii Rothrock USA: Colorado Head of Leroux Creek J. H. Cowen 29 1892-7-21
GH: 01626519 Ribes wolfii Rothrock USA: Colorado Oak Mesa J. H. Cowen 207 1892-7-6
Solanaceae
GH: 00939731 Nicotiana attenuata Torrey ex S. Watson USA: Colorado Hotchkiss J. H. Cowen 1754 1897-9-5
Vitaceae
GH: 01578013 Parthenocissus vitacea (Knerr) Hitchcock USA: Colorado Vicinity of Arthur's Rock. J. H. Cowen 120 1895-7-20
GH: 01579678 Vitis riparia Michaux USA: Colorado Cache la Poudre J. H. Cowen 121 1895-7-1