Displaying 1 - 19 out of 19 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Asplenium pinnatifidum Nutt. | W. A. Poyser s.n. | 07 Sep 1908 | United States of America | Pennsylvania | York Co. Muddy Creek Forks | — | 3519344 |
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| Ophioglossum vulgatum var. pseudopodum (S.F.Blake) Farw. | W. A. Poyser s.n. | 07 Dec 1908 | United States of America | Pennsylvania | Delaware Co. near Lima | — | 3538977 |
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| Ophioglossum vulgatum var. pseudopodum (S.F.Blake) Farw. | W. A. Poyser s.n. | 07 Dec 1908 | United States of America | Pennsylvania | Delaware Co. near Lima | — | 3538978 |
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| Ophioglossum vulgatum var. pseudopodum (S.F.Blake) Farw. | W. A. Poyser s.n. | 07 Dec 1908 | United States of America | Pennsylvania | Delaware Co. near Lima | — | 3538979 |
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| Polystichum aculeatum (L.) Roth | W. A. Poyser s.n. | 22 Nov 1908 | United States of America | California | Palo Alto. St. St. Tracy | — | 3539643 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | 20 Jun 1908 | United States of America | Pennsylvania | Delaware Co. Valley of Crumm… | — | 3550462 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | 20 Jun 1908 | United States of America | Pennsylvania | Swarthmore | — | 3550463 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | 20 Jun 1908 | United States of America | Pennsylvania | Delaware Co. Swarthmore | — | 3550464 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser 1286 | 20 Jun 1908 | United States of America | Pennsylvania | Delaware Co. Valley of Crum… | — | 3550496 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | s.d. | United States of America | Pennsylvania | near Swarthmore | — | 3550502 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | 07 Jun 1908 | United States of America | Pennsylvania | Delaware Co. Marple Township | — | 3550516 |
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| Dryopteris clintoniana (Eaton) Dowell | W. A. Poyser s.n. | 20 Jun 1908 | United States of America | Pennsylvania | Delaware Co. Valley of Crum… | — | 3550520 |
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| Dryopteris cristata (L.) A.Gray | W. A. Poyser s.n. | 04 Jul 1907 | United States of America | Pennsylvania | Delaware Co. Marple Township | — | 3550736 |
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| Schizaea pusilla Pursh | W. A. Poyser s.n. | 07 Oct 1907 | United States of America | New Jersey | Atlantic Co. Near Egg Harbor | — | 3554436 |
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| Woodsia ilvensis (L.) R.Br. | W. A. Poyser s.n. | 09 Jul 1908 | United States of America | Pennsylvania | Nockanmixon | — | 3800893 |
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| Woodsia ilvensis (L.) R.Br. | W. A. Poyser s.n. | 07 Jan 1910 | United States of America | Pennsylvania | Bucks Co. | — | 3800894 |
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| Woodsia obtusa (Spreng.) Torr. | W. A. Poyser s.n. | 18 Jul 1907 | United States of America | Pennsylvania | Delaware Co. Glen Mills | — | 3810529 |
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| Woodsia obtusa (Spreng.) Torr. | W. A. Poyser s.n. | 18 Jul 1907 | United States of America | Pennsylvania | Delaware Co. Glen Mills | — | 3810530 |
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| Polypodium scouleri Hook. & Grev. | W. A. Poyser s.n. | 24 Nov 1907 | Canada | British Columbia | Alberni-Clayoquot Reg. Distr. | — | 3792669 |
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