Displaying 76 - 100 out of 478 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Schoenoplectiella smithii var. smithii | C. S. Williamson s.n. | 02 Sep 1907 - 25 Aug 1907 | United States of America | Pennsylvania | Delaware above Phila. | — |
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| Thalictrum thalictroides (L.) A.J.Eames & B.Boivin | C. S. Williamson s.n. | 03 May 1908 | United States of America | Pennsylvania | Castle Rock | — |
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| Carpinus caroliniana Walter | C. S. Williamson s.n. | 10 May 1908 - 02 Aug 1908 | United States of America | Pennsylvania | Banks of creek | — |
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| Carex sprengelii Dewey ex Spreng. | C. S. Williamson s.n. | 17 May 1908 | United States of America | Pennsylvania | Montgomery Co. Green Lake. | — |
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| Salix alba L. | C. S. Williamson s.n. | 17 May 1908 | United States of America | Pennsylvania | Montgomery Co. Sumneytown. | — |
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| Juglans cinerea L. | C. S. Williamson s.n. | 17 May 1908 | United States of America | Pennsylvania | Montgomery Co. Sumneytown | — |
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| Carex asa-grayi L.H.Bailey | C. S. Williamson s.n. | 24 May 1908 | — | — | Ridley Creek. | — |
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| Geum vernum (Raf.) Torr. & A.Gray | C. S. Williamson s.n. | 24 May 1908 | United States of America | Pennsylvania | Castle Rocks | — |
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| Aira praecox L. | C. S. Williamson s.n. | May 30th-June 7th 1908 | United States of America | New York | Cold Spring, 2 Point Pleasant. | — |
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| Carex gracillima Schwein. | C. S. Williamson s.n. | 30 May 1908 | United States of America | Pennsylvania | Bangor (Greenwold). | — |
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| Poa autumnalis Muhl. ex Elliott | C. S. Williamson s.n. | 03 Jun 1908 | United States of America | Pennsylvania | Philadelphia Co. Wissahickon ravine. Phila.… | — |
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| Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. acuminatum | C. S. Williamson s.n. | 10 Jun 1908 | United States of America | New York | Bulls Island | — |
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| Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. acuminatum | C. S. Williamson s.n. | 13 Jun 1908 | United States of America | Pennsylvania | Cooperstown | — |
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| Danthonia sericea Nutt. | C. S. Williamson s.n. | 14 Jun 1908 | United States of America | New Jersey | Atlantic Co. | — |
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| Phlox maculata L. | C. S. Williamson s.n. | 21 Jun 1908 | United States of America | Pennsylvania | Philadelphia Co. Rock Hill | — |
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| Elymus virginicus var. virginicus | C. S. Williamson s.n. | 28 Jun 1908 | United States of America | New Jersey | Atlantic Co. | — |
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| Carya illinoinensis (Wangenh.) K.Koch | C. S. Williamson s.n. | 12 Jul 1908 | United States of America | New York | Cape May | — |
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| Schizaea pusilla Pursh | C. S. Williamson s.n. | Aug 1908 | United States of America | New Jersey | Absecon | — |
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| Toxicodendron pubescens Mill. | C. S. Williamson s.n. | Aug 1908 | United States of America | New Jersey | — |
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| Bartonia paniculata (Michx.) Muhl. subsp. paniculata | C. S. Williamson s.n. | 29 Aug 1908 | United States of America | Delaware | Sussex Co. | — |
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| Cabomba caroliniana A.Gray var. caroliniana | C. S. Williamson s.n. | 31 Aug 1908 | United States of America | Delaware | Milford. Near Station. | — |
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| Cynodon dactylon (L.) Pers. | C. S. Williamson s.n. | 13 Sep 1908 | United States of America | New Jersey | Cape May Co. | — |
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| Mnesithea rugosa (Nutt.) de Koning & Sosef | C. S. Williamson s.n. | 13 Sep 1908 | United States of America | New Jersey | Cape May Co. near Bennett | — |
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| Setaria parviflora (Poir.) Kerguélen | C. S. Williamson s.n. | 13 Sep 1908 | United States of America | New Jersey | Cape May Co. | — |
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| Panicum capillare L. | C. S. Williamson s.n. | 19 Sep 1908 | United States of America | New Jersey | Riddleton. | — |
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