Displaying 51 - 75 out of 94 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Selaginella standleyi Maxon | F. H. Knowlton 103 | 08 Sep 1903 | United States of America | Colorado | Larimer Co. 1 1/2 mi.… | — | 3506776 |
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| Equisetum arvense L. | F. H. Knowlton s.n. | 1887 | United States of America | District of Columbia | Washington D.C. RR embankment | — | 3509820 |
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| Equisetum laevigatum A.Braun | F. H. Knowlton 155 | 08 Jul 1896 | United States of America | Wyoming | Converse Co. Lara Creek 4… | — | 3511311 |
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| Phyla cuneifolia (Torr.) Greene | F. H. Knowlton 99 | 26 Jun 1896 | United States of America | Colorado | Crow Creek | — | 3541272 |
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| Verbena bracteata Lag. & Rodr. | F. H. Knowlton 148 | 04 Jul 1896 | United States of America | Wyoming | Lance Creek | — | 3547982 |
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| Gentiana affinis Griseb. | F. H. Knowlton 181 | 12 Aug 1896 | United States of America | Wyoming | Harris Fork | — | 3579684 |
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| Gentiana affinis Griseb. | F. H. Knowlton 181 | 12 Aug 1896 | United States of America | Wyoming | Harris Fork | — | 3579686 |
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| Primula angustifolia Torr. | F. H. Knowlton 21 | 14 Jun 1896 | United States of America | Colorado | El Paso Co. Pike's Peak | — | 3679016 |
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| Geranium caespitosum E.James | F. H. Knowlton 38 | 15 Jun 1896 | United States of America | Colorado | El Paso Co. | — | 3712811 |
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| Woodsia oregana D.C. Eaton | F. H. Knowlton 110 | 28 Jun 1896 | United States of America | Wyoming | Lusk | — | 3810776 |
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| Woodsia oregana D.C. Eaton | F. H. Knowlton 110 | 28 Jun 1896 | United States of America | Wyoming | Lusk | — | 3810777 |
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| Polanisia dodecandra var. trachysperma (Torr. & A.Gray) Iltis | F. H. Knowlton 153 | 08 Jul 1896 | United States of America | Wyoming | 4 m. below U.-L. Ranch | — | 3872071 |
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| Croton texensis (Klotzsch) Müll.Arg. | F. H. Knowlton 95 | 26 Jun 1896 | United States of America | Colorado | Crow Creek | — | 3974046 |
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| Sphaeralcea coccinea (Nutt.) Rydb. | F. H. Knowlton 87 | 26 Jun 1896 | United States of America | Colorado | Crow Creek | — | 3972177 |
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| Euphorbia missurica var. intermedia Raf. | F. H. Knowlton 92 | 26 Jun 1896 | United States of America | Colorado | Crow Creek | — | 4010402 |
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| Calopogon tuberosus (L.) Britton, Sterns & Poggenb. var. tuberosus | F. H. Knowlton s.n. | 27 Jun 1897 | United States of America | Maryland | Laurel | — | 4013192 |
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| Carex ebenea Rydb. | F. H. Knowlton 144 | 27 Aug 1889 | United States of America | Arizona | Coconino Co. San Francisco Mountain.… | — | 2263806 |
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| Bromus anomalus Rupr. ex E.Fourn. | F. H. Knowlton 17 | 17 Aug 1889 | United States of America | Arizona | San Francisco Mountain. | — | 1631635 |
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| Brachythecium collinum (Schleich. ex Müll.Hal.) Schimp. | F. H. Knowlton | 18 Aug 1889 | United States of America | Arizona | San Francisco Mts. | — | 545311 | ||
| Bryum pseudotriquetrum (Hedw.) G.Gaertn., B.Mey. & Scherb. | F. H. Knowlton | 31 Jul 1888 | United States of America | — | In the Yellowstone National Park.… | — | 419735 | ||
| Bryum pseudotriquetrum (Hedw.) G.Gaertn., B.Mey. & Scherb. | F. H. Knowlton | 01 Jul 1888 | United States of America | Montana | Gallatin Co. Collected near the… | — | 419800 | ||
| Nitella microcarpa A.Braun | F. H. Knowlton s.n. | before 30 Sep 1884 | United States of America | District of Columbia | eastern branch of the Potomac… | — | 02022127 |
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| Eriogonum umbellatum Torr. var. umbellatum | F. H. Knowlton 66 | 17 Jun 1896 | United States of America | Colorado | Golden. South Table Mt. | — | 3149484 |
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| Aletes acaulis (Torr.) J.M.Coult. & Rose | F. H. Knowlton 76 | 17 Jun 1896 | United States of America | Colorado | Golden. South Table Mt. | — | 3365472 |
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| Acer negundo var. interior (Britton) Sarg. | F. H. Knowlton 162 | 09 Jul 1896 | United States of America | Wyoming | [Lauce] Creek | — | 2486903 |
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