Displaying 151 - 175 out of 321 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Boykinia jamesii var. heucheriformis (Rydb.) Engl. | F. V. Hayden s.n. | 24 Jul 1871 | United States of America | Montana | Hot Sulphur Springs | — |
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| Heuchera cylindrica Douglas ex Hook. | F. V. Hayden s.n. | 25 Jun 1871 - 30 Jun 1871 | United States of America | Montana | Mtns. South of Virginia City | — |
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| Saxifraga caespitosa var. subgemmifera | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mtns. | — |
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| Dryopteris filix-mas (L.) Schott | F. V. Hayden s.n. | 1870 | United States of America | Wyoming | Wind River Mtns., Wyoming T. | — |
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| Maianthemum racemosum subsp. amplexicaule (Nutt.) LaFrankie | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mtns. | — |
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| Viola nuttallii Pursh | F. V. Hayden s.n. | 25 May 1871 | United States of America | Wyoming | Laramie Co. | — |
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| Androsace filiformis Retz. | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mtns. | — |
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| Porterella carnosula (Hook. & Arn.) Torr. | F. V. Hayden s.n. | Aug 1871 | United States of America | Wyoming | Yellowstone Lake | — |
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| Allium acuminatum Hook. | F. V. Hayden s.n. | Jun 1871 | United States of America | Utah | Weber River Valley. | — |
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| Toxicoscordion venenosum var. gramineum (Rydb.) Brasher | F. V. Hayden s.n. | Jun 1871 | United States of America | Idaho | Rocky Mtns. | — |
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| Hibiscus trionum L. | F. V. Hayden s.n. | 1853 - 1854 | United States of America | Nebraska | Fort Leavenworth | — |
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| Allium acuminatum Hook. | F. V. Hayden s.n. | Sep 1870 | United States of America | Utah | Uintah Mts. | — |
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| Euphorbia marginata Pursh | F. V. Hayden 227 | 21 Jun 1853 | United States of America | Nebraska | Fort Pierre | — |
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| Euphorbia serpyllifolia Pers. | F. V. Hayden s.n. | 11 Jul 1853 | United States of America | Nebraska | Mauvaises Terres | — |
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| Anticlea elegans (Pursh) Rydb. | F. V. Hayden s.n. | Aug 1870 - Sep 1870 | — | — | Rocky Mts | — |
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| Eriogonum pauciflorum var. gnaphalodes (Benth.) Reveal | F. V. Hayden s.n. | s.d. | United States of America | Montana | Roosevelt Co. Fort Union | — |
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| Sparganium angustifolium Michx. | F. V. Hayden s.n. | 1871 | United States of America | Wyoming | Yellowstone Lake | — |
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| Amaranthus rudis J.D.Sauer | F. V. Hayden s.n. | Aug 1870 - Sep 1870 | United States of America | — | Rocky Mountains | — |
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| Blitum nuttallianum Schult. | F. V. Hayden s.n. | s.d. | United States of America | — | On the Platte River | — |
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| Nasturtium calycinum (Hook.) Engelm. ex Hayden | F. V. Hayden s.n. | Jul 1854 | United States of America | Montana | Custer Co. Yellowstone, near Fork… | isolectotype |
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| Chasmanthium latifolium (Michx.) H.O.Yates | F. V. Hayden s.n. | Sep 1850 - Oct 1850 | United States of America | Oklahoma | North Fork Canadian River | — |
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| Euphorbia petaloidea var. intermedia Engelm. | F. V. Hayden | 1853-1854 | United States of America | Nebraska | Fort Pierre | possible type |
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| Drymaria tenella | F. V. Hayden s.n. | 1869 | United States of America | New Mexico | — |
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| Cerastium brachypodum var. compactum B.L.Rob. | F. V. Hayden s.n. | 1853 - 1855 | United States of America | Nebraska | Badlands | isosyntype |
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| Euphorbia serpyllifolia var. consanguinea Boiss. | F. V. Hayden | 21 Jun 1853 | United States of America | Nebraska | Fort Pierre | syntype |
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