Displaying 701 - 775 out of 919 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Gnomonia ulmea (Schwein.:Fr.) Thüm. | T. A. Williams s.n. | m. Oct. | United States of America | South Dakota | prope Brookings | — | 2931506 |
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| Potentilla paradoxa Nutt. ex Torr. & A.Gray | T. A. Williams s.n. | 28 Jun 1890 | United States of America | South Dakota | Brookings Co. | — | 2842086 |
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| Rorippa palustris subsp. hispida (Desv.) Jonsell | T. A. Williams 362 | 20 Aug 1894 | United States of America | South Dakota | Minnehaha Co. Banks of Clear… | — | 2406016 |
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| Carex sychnocephala J.Carey | T. A. Williams 63521 | 16 Aug 1892 | United States of America | South Dakota | Lake Hendricks | — | 2306677 |
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| Chara contraria A.Braun ex Kütz. | T. A. Williams s.n. | 16 Jul 1890 | United States of America | Nebraska | Cass Co. shallow ponds | — | 02012488 |
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| Plagiomnium cuspidatum (Hedw.) T.J.Kop. | T. A. Williams | 13 Jun 1895 | United States of America | South Dakota | Big Stone | — | 395568 | ||
| Hypnum lindbergii Mitt. | T. A. Williams 9 | Aug 1891 | United States of America | South Dakota | Pennington Co. | — | 624652 | ||
| Jaffueliobryum raui (Austin) Thér. | T. A. Williams 4 | Aug 1891 | United States of America | South Dakota | Pennington Co. | — | 349734 | ||
| Jaffueliobryum wrightii (Sull.) Thér. | T. A. Williams 5 | Aug 1891 | United States of America | South Dakota | Pennington Co. | — | 349873 | ||
| Plagiomnium cuspidatum (Hedw.) T.J.Kop. | T. A. Williams 7 | Aug 1891 | United States of America | South Dakota | Rapid City | — | 395570 | ||
| Hymenostylium recurvirostrum (Hedw.) Dixon | T. A. Williams 14 | Aug 1891 | United States of America | South Dakota | Rapid City. | — | 02637767 | ||
| Buellia stillingiana J.Steiner | T. A. Williams | 1897 | United States of America | Wyoming | Big Horn Mountains | — | 1613378 |
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| Podosphaera oxyacanthae (DC.) de Bary | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Piney[?] River | — | 2943507 |
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| Cuscuta approximata Bab. | T. A. Williams s.n. | Jul 1897 | United States of America | Utah | Cache Co. | — | 643316 |
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| Cuscuta approximata Bab. | T. A. Williams s.n. | 07 Aug 1898 | United States of America | Wyoming | Bunnett [?illegible] Ranch, Crazy Woman… | — | 643298 |
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| Cuscuta approximata Bab. | T. A. Williams s.n. | 07 Aug 1898 | United States of America | Wyoming | Bunnett [?illegible] Ranch, Crazy Woman… | — | 643292 |
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| Coccocarpia palmicola (Spreng.) Arv. & D.J.Galloway | T. A. Williams 273 | Dec 1897 | United States of America | Maryland | Montgomery Co. Sligo Creek | — | 1516684 |
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| Sphagnum teres (Schimp.) Ångstr. | T. A. Williams 6 | 19 Aug 1898 | United States of America | Wyoming | North York Clear Creek, BigHorn… | — | 277301 | ||
| Chrysothamnus linifolius Greene | T. A. Williams s.n. | 09 Jul 1897 | United States of America | Wyoming | Green River. | — | 2038617 |
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| Symphyotrichum spathulatum var. spathulatum | T. A. Williams s.n. | 10 Jul 1897 - 12 Jul 1897 | United States of America | Wyoming | Evanston. | — | 1858384 |
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| Crepis acuminata Nutt. | T. A. Williams s.n. | 10 Jul 1897 - 12 Jul 1897 | United States of America | Wyoming | Evanston. | — | 2067721 |
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| Crepis acuminata Nutt. | T. A. Williams s.n. | 26 Jul 1898 | United States of America | Wyoming | Buffalo. | — | 2067719 |
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| Psoralidium tenuiflorum (Pursh) Rydb. | T. A. Williams s.n. | Jun 1897 | United States of America | Wyoming | Wheatland. | — | 2621848 |
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| Smilax lasioneura Hook. | T. A. Williams s.n. | — | United States of America | South Dakota | Oakwood | — | 3743747 |
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| Pyrrocoma uniflora (Hook.) Greene var. uniflora | T. A. Williams s.n. | 10 Jul 1897 - 12 Jul 1897 | United States of America | Wyoming | Evanston. | — | 3121070 |
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| Sisyrinchium idahoense var. occidentale (E.P.Bicknell) D.M.Hend. | T. A. Williams s.n. | 10 Jul 1897 - 12 Jul 1897 | United States of America | Wyoming | Evanston. | — | 3853769 |
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| Packera multilobata (Torr. & A.Gray) W.A.Weber & Á.Löve | T. A. Williams s.n. | 11 Jul 1891 | United States of America | Wyoming | Evanston. | — | 3116996 |
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| Suaeda nigra (Raf.) J.F.Macbr. | T. A. Williams s.n. | 07 Jul 1897 | United States of America | Wyoming | Green River. | — | 3362690 |
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| Tetradymia canescens DC. | T. A. Williams s.n. | 07 Jul 1897 | United States of America | Wyoming | Green River. | — | 2917113 |
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| Elymus lanceolatus subsp. lanceolatus | T. A. Williams 2323 | 1897 | United States of America | Wyoming | Laramie. | — | 1674412 |
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| x Elyhordeum macounii (Vasey) Barkworth & D.R.Dewey | T. A. Williams 2373 | 1897 | United States of America | Wyoming | Green River. | — | 1597460 |
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| Pseudoroegneria spicata (Pursh) Á.Löve | T. A. Williams 2380 | 1897 | United States of America | Wyoming | Green River. | — | 1811832 |
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| Elymus lanceolatus subsp. lanceolatus | T. A. Williams 2394 | 1897 | United States of America | Wyoming | Evanston. | — | 1674408 |
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| Hordeum brachyantherum Nevski | T. A. Williams 2414 | 1897 | United States of America | Wyoming | Evanston. | — | 1728959 |
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| Elymus trachycaulus subsp. subsecundus (Link) Á.Löve & D.Löve | T. A. Williams 2598 | 1897 | United States of America | Wyoming | Sundance. | — | 1678386 |
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| Silene menziesii Hook. | T. A. Williams s.n. | 04 Aug 1898 | United States of America | Wyoming | Buffalo. | — | 3314778 |
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| Leymus salina (M.E.Jones) Á.Löve | T. A. Williams 2381 | 1897 | United States of America | Wyoming | Green River. | — | 1736960 |
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| Elymus trachycaulus subsp. trachycaulus | T. A. Williams 2428 | 1897 | United States of America | Wyoming | Evanston. | — | 1678458 |
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| Elymus lanceolatus (Scribn. & J.G.Sm.) Gould | T. A. Williams 2440 | 1897 | United States of America | Wyoming | Evanston. | — | 1674505 |
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| Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. acuminatum | T. A. Williams s.n. | 22 Jun 1899 | United States of America | District of Columbia | Argyle | — | 1591872 |
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| Endocarpon rufescens Ach. | T. A. Williams s.n. | Jan 1896 | United States of America | Nebraska | Lancaster Co. | — | 04440031 |
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| Elymus x pseudorepens (Scribn. & J.G.Sm.) Barkworth & D.R.Dewey | T. A. Williams 2435 | 1897 | United States of America | Wyoming | Evanston. | — | 1680006 |
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| Bacidia polychroa (Th.Fr.) Körb. | T. A. Williams 258 | 26 Dec 1896 | United States of America | Maryland | Montgomery Co. Takoma Park | — | 1542702 |
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| Bacidia polychroa (Th.Fr.) Körb. | T. A. Williams 258 | 26 Dec 1896 | United States of America | Maryland | Montgomery Co. Takoma Park | — | 1542686 |
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| Orthotrichum anomalum Hedw. | T. A. Williams | Aug. 1891 | United States of America | South Dakota | Pennington Co. Black Hills | — | 421372 | ||
| Tortula obtusifolia (Schwägr.) Mathieu | T. A. Williams 11 | Aug 1891 | United States of America | South Dakota | Pennington Co. | — | 341626 | ||
| Leptobryum pyriforme (Hedw.) Wilson | T. A. Williams 24 | Aug 1891 | United States of America | South Dakota | Pennington Co. | — | 379143 | ||
| Abietinella abietina (Hedw.) M.Fleisch. | T. A. Williams 13 | Aug 1891 | United States of America | South Dakota | Rapid City | — | 467736 | ||
| Phragmidium andersoni Shear | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Big Horn Mts. | type | 53777 |
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| Phragmidium andersoni Shear | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Big Horn Mts. | type | 53778 |
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| Phragmidium andersoni Shear | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Big Horn Mts. | type | 53779 |
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| Aecidium micropunctum Ellis & Everh. | T. A. Williams 42 | 18 Jun 1890 | United States of America | Nebraska | Pine Ridge | isotype | 611222 |
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| Puccinia burnettii Griffiths | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Buffalo. | type | 49163 |
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| Puccinia burnettii Griffiths | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Buffalo. | type | 49164 |
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| Puccinia burnettii Griffiths | T. A. Williams s.n. | Aug 1898 | United States of America | Wyoming | Buffalo. | type | 49165 |
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| Puccinia tosta Arthur | T. A. Williams s.n. | Aug 1898 | United States of America | Montana | Billings. | probable syntype | 14846 |
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| Puccinia tosta Arthur | T. A. Williams s.n. | Aug 1898 | United States of America | Montana | Billings. | probable syntype | 14847 |
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| Puccinia tosta Arthur | T. A. Williams s.n. | Aug 1898 | United States of America | Montana | Billings. | probable syntype | 14848 |
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| Puccinia micrantha Griffiths | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | type | 37065 |
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| Puccinia micrantha Griffiths | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | type | 37066 |
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| Puccinia micrantha Griffiths | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | type | 37067 |
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| Puccinia tosta luxurians Arthur | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | probable type | 28355 |
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| Puccinia tosta luxurians Arthur | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | probable type | 28356 |
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| Puccinia tosta luxurians Arthur | T. A. Williams s.n. | Sep 1898 | United States of America | Montana | Billings. | probable type | 28357 |
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| Tilletia externa Griffiths | T. A. Williams | Aug 1898 | United States of America | Wyoming | Buffalo. | type material | 00738523 |
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| Tilletia externa Griffiths | T. A. Williams | Aug 1898 | United States of America | Wyoming | Buffalo. | type material | 00738531 |
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| Cytospora annulata Ellis & Everh. | T. A. Williams s.n. | Oct 1891 | United States of America | South Dakota | Brookings Co. | type | 00928007 |
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| Cytospora annulata Ellis & Everh. | T. A. Williams s.n. | Oct 1891 | United States of America | South Dakota | Brookings Co. | type | 00928008 |
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| Cytospora annulata Ellis & Everh. | T. A. Williams s.n. | Oct 1891 | United States of America | South Dakota | Brookings Co. | type | 00928009 |
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| Cytospora annulata Ellis & Everh. | T. A. Williams s.n. | Oct 1891 | United States of America | South Dakota | Brookings Co. | type | 00928010 |
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| Montia chamissoi (Ledeb. ex Spreng.) Greene | T. A. Williams s.n. | 09 Aug 1899 | United States of America | Wyoming | North Fork Clear Creek. Big… | — | 3570659 |
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| Phormidium inundatum Kütz. | T. A. Williams | D. Griffiths 1 | 01 Sep 1898 | United States of America | Montana | Yellowstone Co. on pottoms of… | — | 02348126 |
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| Hydrurus foetidus (Vill.) Trevis. | T. A. Williams | D. Griffiths s.n. | 20 Aug 1898 | United States of America | Wyoming | near Buffalo, North Fork Clear… | — | 02223785 |
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| Prasiola mexicana J.Agardh | T. A. Williams | D. Griffiths s.n. | 20 Aug 1898 | United States of America | Wyoming | near Buffalo, North Fork Clear… | — | 02144350 |
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| Lupinus foliosus Hook. | T. A. Williams s.n. | 21 Aug 1898 | United States of America | Wyoming | North Fork Clear Creek, Big… | — | 2598046 |
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