Displaying 1 - 75 out of 341 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Alyssum alyssoides (L.) L. | C. S. Sheldon | 02 Jun 1880 | United States of America | New York | Tompkins Co. | — | 785830 |
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| Penstemon crandallii A.Nelson var. crandallii | C. S. Sheldon 547 | 09 Jul 1892 | United States of America | Colorado | Chaffee Co. South Cottonwood Gulch | — | 589306 |
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| Penstemon laricifolius var. exilifolius (A.Nelson) Payson | C. S. Sheldon 55 | 20 Jul 1884 | United States of America | Wyoming | Laramie Plains | — | 604901 |
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| Senecio ambrosioides Rydb. | C. S. Sheldon 5830 | 02 Aug 1892 | United States of America | Colorado | Green Mt. Falls | holotype | 232449 |
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| Antennaria sordida Greene | C. S. Sheldon s.n. | 28 Jul 1884 | United States of America | Colorado | North Park near Teller | syntype | 23058 |
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| Macronema obtusum Rydb. | C. S. Sheldon 5838 | 14 Jul 1892 | United States of America | Colorado | Chaffee Co. South Cottonwood Gulch | type | 214958 |
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| Penstemon magnus Pennell | C. S. Sheldon 90 6128v.l | 30 Jul 1884 | United States of America | Colorado | North Park, near Teller. | holotype | 91177 |
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| Penstemon barbatus var. torreyi (Benth.) A.Gray | C. S. Sheldon s.n. | 27 Jul 1892 | United States of America | Colorado | Chaffee Co. Near Buena Vista | — | 572060 |
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| Muhlenbergia filiculmis Vasey | C. S. Sheldon 5805 | 02 Aug 1892 | United States of America | Colorado | El Paso Co. Green Mt.… | isotype | 381387 |
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| Penstemon procerus Graham var. procerus | C. S. Sheldon 89 6128 | 22 Jul 1884 | United States of America | Colorado | North Park. Near Pinkhampton's. | — | 640032 |
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| Tomanthera auriculata (Michx.) Raf. | C. S. Sheldon 1926 6293 | 13 Sep 1884 | United States of America | Missouri | Adair Co. | — | 29015 |
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| Penstemon virgatus var. asa-grayi (Crosswh.) Dorn | C. S. Sheldon 6180 8 | 07 Jul 1884 | United States of America | Colorado | Fort Collins | — | 763328 |
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| Penstemon virgatus var. asa-grayi (Crosswh.) Dorn | C. S. Sheldon 8 6180 | 07 Jul 1884 | United States of America | Colorado | Fort Collins | — | 763327 |
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| Penstemon virgatus var. asa-grayi (Crosswh.) Dorn | C. S. Sheldon s.n. | 08 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 763329 |
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| Antennaria rosea Greene | C. S. Sheldon s.n. | 28 Jul 1884 | United States of America | Colorado | North park area, Feller | syntype | 23083 |
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| Penstemon griffinii A.Nelson | C. S. Sheldon 554 | 23 Jul 1892 | United States of America | Colorado | Chaffee Co. Base of Mt.… | — | 601145 |
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| Penstemon whippleanus A.Gray | C. S. Sheldon 82 | 09 Jul 1892 | United States of America | Colorado | Chaffee Co. South Cottonwood Gulch | — | 771713 |
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| Penstemon whippleanus A.Gray | C. S. Sheldon 243 6143 | 16 Aug 1884 | United States of America | Colorado | Berthord Pass, near Georgetown | — | 771712 |
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| Penstemon whippleanus A.Gray | C. S. Sheldon 6143a 115 | 26 Jul 1884 | United States of America | Colorado | North Park, near Feller | — | 771711 |
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| Poa sheldoni Vasey | C. S. Sheldon s.n. | 04 Jul 1892 | United States of America | Colorado | Chaffee Co. Along Cottonwood Creek | isotype | 431345 |
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| Ranunculus calthifolius Greene | C. S. Sheldon 281 | 17 Aug 1884 | United States of America | Colorado | Berthoud Pass, near Georgetown. | isolectotype | 841925 |
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| Astragalus adsurgens var. robustior Hook. | C. S. Sheldon s.n. | 20 Jul 1884 | United States of America | Wyoming | Laramie Plains | — | 01203701 |
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| Astragalus agrestis Douglas ex G.Don | C. S. Sheldon 54 | 19 Jul 1884 | United States of America | Wyoming | Laramie Plains | — | 01214937 |
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| Astragalus agrestis Douglas ex G.Don | C. S. Sheldon s.n. | 04 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 01214996 |
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| Astragalus alpinus L. var. alpinus | C. S. Sheldon 122 | 26 Jul 1884 | United States of America | Colorado | North Park, near Feller | — | 01215480 |
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| Astragalus distortus Torr. & A.Gray var. distortus | C. S. Sheldon 1728 | 05 Jun 1885 | United States of America | Missouri | Kirksvile | — | 01248555 |
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| Astragalus drummondii Douglas ex Hook. | C. S. Sheldon s.n. | 06 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 01248855 |
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| Dalea candida var. oligophylla (Torr.) Shinners | C. S. Sheldon 7 | 07 Jul 1884 | United States of America | Colorado | Fort Collins | — | 01258784 |
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| Astragalus leptaleus A.Gray | C. S. Sheldon s.n. | 27 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 01260927 |
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| Astragalus miser var. oblongifolius (Rydb.) Cronquist | C. S. Sheldon 108 1707 | 25 Jul 1884 | United States of America | Colorado | North Park, near Teller | — | 01261695 |
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| Dalea multiflora (Nutt.) Shinners | C. S. Sheldon 259 | 07 Aug 1891 | United States of America | Oklahoma | Comanche Co. Western Ind. Terr.… | — | 01074180 |
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| Dalea purpurea Vent. var. purpurea | C. S. Sheldon 3 | 07 Jul 1884 | United States of America | Colorado | Fort Collins | — | 01277519 |
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| Quincula lobata (Torr.) Raf. | C. S. Sheldon 35 | 12 Jul 1884 | United States of America | Colorado | Larimer Co. Fort Collins. Banks… | — | 1458528 |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | C. S. Sheldon 5804 | 06 Jul 1892 | United States of America | Colorado | Chaffee Co. | — | 1553275 |
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| Blepharoneuron tricholepis (Torr.) Nash | C. S. Sheldon 318 | 8/2/92 | United States of America | Colorado | Gravelly slopes, Green Mt. Falls. | — | 1641444 |
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| Poa nervosa (Hook.) Vasey | C. S. Sheldon 5803 | 22 Jul 1892 | United States of America | Colorado | Chaffee Co. Mt. Princeton. Rocky… | — | 1792442 |
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| Poa reflexa Vasey & Scribn. | C. S. Sheldon 163 | 02 Aug 1884 | United States of America | Colorado | Larimer Co. North Park, near… | — | 1794521 |
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| Trisetum spicatum (L.) K.Richt. | C. S. Sheldon 260 | 16 Aug 1884 | United States of America | Colorado | Floral Mt. near Georgetown. | — | 1820482 |
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| Symphyotrichum ascendens (Lindl.) G.L.Nesom | C. S. Sheldon 41 | 14 Jul 1884 | United States of America | Colorado | Fort Collins | — | 1832157 |
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| Symphyotrichum ascendens (Lindl.) G.L.Nesom | C. S. Sheldon s.n. | 27 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 1832172 |
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| Symphyotrichum ascendens (Lindl.) G.L.Nesom | C. S. Sheldon 41 | 14 Jul 1884 | United States of America | Colorado | Fort Collins | — | 1832211 |
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| Symphyotrichum ascendens (Lindl.) G.L.Nesom | C. S. Sheldon 41 | 14 Jul 1884 | United States of America | Colorado | Fort Collins; Plains | — | 1832212 |
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| Symphyotrichum boreale (Torr. & A.Gray) Á.Löve & D.Löve | C. S. Sheldon 1251 | 04 Sep 1882 | United States of America | New York | Oswego Co. | — | 1832754 |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | C. S. Sheldon 1235 | 09 Sep 1881 | United States of America | New York | Oswego | — | 1844871 |
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| Symphyotrichum ericoides (L.) G.L.Nesom | C. S. Sheldon 194 | 09 Aug 1884 | United States of America | Colorado | Middle Park | — | 1847481 |
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| Agoseris aurantiaca var. purpurea (A.Gray) Cronquist | C. S. Sheldon 123 | 28 Jul 1884 | United States of America | Colorado | North Park, near Teller. Grassy… | — | 1867681 |
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| Artemisia biennis Willd. | C. S. Sheldon 204 | 12 Aug 1884 | United States of America | Colorado | Middle Park. | — | 1892485 |
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| Artemisia dracunculus L. | C. S. Sheldon 196 | 09 Aug 1884 | United States of America | Colorado | Middle Park. | — | 1894002 |
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| Bahia dissecta (A.Gray) Britton | C. S. Sheldon 5835 | 06 Aug 1892 | United States of America | Colorado | El Paso Co. Creek banks,… | — | 1900611 |
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| Bahia oppositifolia (Nutt.) DC. | C. S. Sheldon 16 | 08 Jul 1884 | United States of America | Colorado | Larimer Co. Fort Collins. | — | 1923136 |
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| Cirsium discolor (Muhl. ex Willd.) Spreng. | C. S. Sheldon 1582 | 25 Aug 1882 | United States of America | New York | Niagara Falls. | — | 2042661 |
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| Crepis runcinata var. glauca (Nutt.) B.Boivin | C. S. Sheldon 5833 | 13 Jul 1892 | United States of America | Colorado | Chaffee Co. South Cottonwood Creek. | — | 2069415 |
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| Ericameria discoidea var. discoidea | C. S. Sheldon 108 | 7/14/92 | United States of America | Colorado | Chaffee Co. South Cottonwood gulch. | — | 2075507 |
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| Erigeron elatior (A.Gray) Greene | C. S. Sheldon 160 | 02 Aug 1884 | United States of America | Colorado | North Park near Teller | — | 2088586 |
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| Erigeron lonchophyllus Hook. | C. S. Sheldon | 25 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista | — | 2091517 |
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| Erigeron peregrinus subsp. callianthemus (Greene) Cronquist var. callianthemus | C. S. Sheldon 3944 | 16 Aug 1884 | United States of America | Colorado | Berthoud Pass, near Georgetown. | — | 2092601 |
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| Carex aurea Nutt. | C. S. Sheldon s.n. | 22 Jun 1881 | United States of America | New York | Oswego Co. Oswego. | — | 2238116 |
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| Carex disperma Dewey | C. S. Sheldon 3336 8829 | 19 Jun 1879 | United States of America | New York | Oswego Co. | — | 2263083 |
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| Carex eleocharis L.H.Bailey | C. S. Sheldon 5810 | 27 Jul 1892 | United States of America | Colorado | Chaffee Co. Buena Vista. | — | 2264449 |
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| Carex eleocharis L.H.Bailey | C. S. Sheldon 56 | 20 Jul 1884 | United States of America | Wyoming | Laramie Plains. | — | 2264503 |
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| Carex geyeri Boott | C. S. Sheldon 149 | 30 Jul 1884 | United States of America | Colorado | North park near Teller. | — | 2277321 |
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| Carex geyeri Boott | C. S. Sheldon s.n. | 30 Jul 1884 | United States of America | Colorado | North park near Geller. | — | 2277377 |
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| Carex lanuginosa Michx. | C. S. Sheldon 3266 | 30 Jul 1880 | United States of America | New York | Oswego Co. | — | 2193727 |
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| Carex limosa L. | C. S. Sheldon 3270 8723 | 30 May 1882 | United States of America | New York | Oswego Co. | — | 2287713 |
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| Carex shortiana Dewey | C. S. Sheldon 3320 8808 | 05 Jun 1884 | United States of America | Missouri | Adair Co. | — | 2303347 |
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| Solidago missouriensis Nutt. | C. S. Sheldon 296 | 20 Aug 1884 | United States of America | Colorado | Cañon near Black Hawk | — | 2353822 |
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| Solidago missouriensis Nutt. | C. S. Sheldon s.n. | 12 Aug 1892 | United States of America | Colorado | Near Cheyenne Canons | — | 2353849 |
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| Solidago missouriensis Nutt. | C. S. Sheldon 42 | 14 Jul 1884 | United States of America | Colorado | Larimer Co. | — | 2353858 |
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| Solidago missouriensis Nutt. | C. S. Sheldon s.n. | 27 Jul 1892 | United States of America | Colorado | Chaffee Co. | — | 2353902 |
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| Solidago missouriensis Nutt. var. missouriensis | C. S. Sheldon s.n. | 25 Jul 1892 | United States of America | Colorado | Chaffee Co. | — | 2354069 |
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| Solidago missouriensis Nutt. var. missouriensis | C. S. Sheldon 3671 | 14 Jul 1884 | United States of America | Colorado | Larimer Co. | — | 2354103 |
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| Solidago multiradiata Aiton | C. S. Sheldon 232 | 15 Aug 1884 | United States of America | Colorado | Berthoud Pass, near Cozzen's | — | 2354864 |
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| Solidago multiradiata Aiton | C. S. Sheldon 232 | 15 Aug 1884 | United States of America | Colorado | Berthoud Pass, near Cozzen's | — | 2354865 |
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| Solidago nitida Torr. & A.Gray | C. S. Sheldon 5794 | 25 Aug 1891 | United States of America | Oklahoma | Rocky hills, Sans Bois Mts.… | — | 2356425 |
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| Solidago parryi (A.Gray) Greene | C. S. Sheldon 241 3592 | 16 Aug 1884 | United States of America | Colorado | Clear Creek Co. Berthoud Pass,… | — | 2368772 |
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