Displaying 1 - 75 out of 343 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | P. Dowell 1510 | 08 Jun 1902 | United States of America | District of Columbia | Takoma | — |
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| Coleataenia anceps (Michx.) Soreng | P. Dowell 1645 | 08 Aug 1902 | United States of America | District of Columbia | Kenilworth, D. C. | — |
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| Poa annua L. | P. Dowell 1355 | 07 May 1902 | United States of America | District of Columbia | Smithsonian grounds | — |
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| Setaria parviflora (Poir.) Kerguélen | P. Dowell 1679 | 09 Aug 1902 | United States of America | District of Columbia | Hyattsville, Md. | — |
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| Carex aggregata Mack. | P. Dowell 1389 | 13 May 1902 | United States of America | District of Columbia | Washington Park. | — |
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| Carex lurida Wahlenb. | P. Dowell 1432 | 21 May 1902 | United States of America | District of Columbia | Anacostia River. | — |
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| Carex blanda Dewey | P. Dowell 1394 | 16 May 1902 | United States of America | District of Columbia | Rock Cr. | — |
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| Carex swanii (Fernald) Mack. | P. Dowell 1409 | 18 May 1902 | United States of America | District of Columbia | Takoma | — |
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| Carex tribuloides var. tribuloides | P. Dowell 1429 | 21 May 1902 | United States of America | District of Columbia | Anacostia River | — |
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| Dichanthelium polyanthes (Schult.) Mohlenbr. | P. Dowell 1576 | 29 Jun 1902 | United States of America | District of Columbia | Brookland. | — |
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| Eleocharis obtusa (Willd.) Schult. | P. Dowell 1598 | 06 Jul 1902 | United States of America | District of Columbia | Washington. Rock Creek | — |
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| Aristida oligantha Michx. | P. Dowell 1684 | 16 Aug 1902 | United States of America | District of Columbia | Rock Creek | — |
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| Lolium arundinaceum (Schreb.) Darbysh. | P. Dowell 1544 | 15 Jun 1902 | United States of America | District of Columbia | Congress Heights | — |
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| Cyperus strigosus L. | P. Dowell 1831 | 23 Aug 1903 | United States of America | District of Columbia | Takoma | — |
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| Dalea carnea (Michx.) Poir. var. carnea | P. Dowell 7602 | 17 Jul 1930 | United States of America | Florida | Volusia Co. Deep Creek, De… | — |
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| Agrostis perennans (Walter) Tuck. | P. Dowell 1678 | 09 Aug 1902 | United States of America | Maryland | Hyattsville. | — |
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| Agalinis obtusifolia Raf. | P. Dowell s.n. | 28 Aug 1910 | United States of America | Maryland | Lanham | — |
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| Paronychia canadensis (L.) Alph.Wood | P. Dowell 3166 | 13 Aug 1904 | United States of America | Maryland | Prince George's Co. | — |
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| Dryopteris bootii Underw. | P. Dowell 5332 | 12 Jul 1908 | United States of America | Maryland | Montgomery Co. | — |
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| Dryopteris bootii Underw. | P. Dowell 5332 | 12 Jul 1908 | United States of America | Maryland | Montgomery Co. | — |
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| Viola lanceolata subsp. lanceolata | P. Dowell 6466 | 14 Aug 1910 | United States of America | Maryland | Prince George's Co. | — |
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| Distichlis spicata (L.) Greene | P. Dowell 3307 | 27 Aug 1904 | United States of America | Maryland | Chesapeake Beach | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 3475b | 24 Sep 1904 | United States of America | New Jersey | New Orange | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 3475b | 24 Sep 1904 | United States of America | New Jersey | New Orange | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 3475c | 24 Sep 1904 | United States of America | New Jersey | New Orange | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 3475d | 24 Sep 1904 | United States of America | New Jersey | Orange | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 3475a | 24 Sep 1904 | United States of America | New Jersey | New Orange | — |
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| Bidens laevis (L.) Britton, Sterns & Poggenb. | P. Dowell 3478 | 24 Sep 1904 | United States of America | New Jersey | K[enil]worth. | — |
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| Carex formosa Dewey | P. Dowell 4978 | 06 Jul 1907 | United States of America | New Jersey | Round Pond, w. of Swartswood. | — |
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| Juncus pelocarpus E.Mey. | P. Dowell 4187 | 16 Sep 1905 | United States of America | New Jersey | Ocean Co. In the pine… | — |
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| Ranunculus fascicularis Muhl. ex Bigelow | P. Dowell 4883 | 3 Jul 1907 | United States of America | New Jersey | Torrey Co. Culver's Gap, Branchville | — |
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| Pellaea atropurpurea (L.) Link | P. Dowell 4817 | 01 Jul 1907 | United States of America | New Jersey | Collected in the vicinity of… | — |
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| Asplenium platyneuron (L.) Oakes | P. Dowell 4539 | 27 Jul 1906 | United States of America | New Jersey | Buckabear Pond, vicinity of Newfoundland | — |
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| Asplenium ruta-muraria L. | P. Dowell 4816 | 01 Jul 1907 | United States of America | New Jersey | Sussex Co. vicinity of Newton | — |
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| Asplenium rhizophyllum L. | P. Dowell 4839 | 01 Jul 1907 | United States of America | New Jersey | Sussex Co. | — |
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| Dryopteris bootii Underw. | P. Dowell 4995 | 07 Jul 1907 | United States of America | New Jersey | Sussex Co. Swamp east of… | — |
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| Dryopteris bootii Underw. | P. Dowell 4995 | 07 Jul 1907 | United States of America | New Jersey | Sussex Co. Newton, East [county… | — |
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| Dryopteris bootii Underw. | P. Dowell 4995 | 07 Jul 1907 | United States of America | New Jersey | Sussex Co. Swamp East of… | — |
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| Dryopteris bootii Underw. | P. Dowell 5030 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mi E… | — |
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| Dryopteris bootii Underw. | P. Dowell 5030 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mi E… | — |
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| Dryopteris clintoniana (Eaton) Dowell | P. Dowell 5032 | 22 Jul 1907 | United States of America | New Jersey | Sussex Co. Swamp beyond Springdale | — |
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| Dryopteris clintoniana (Eaton) Dowell | P. Dowell 5032 | 22 Jul 1907 | United States of America | New Jersey | Sussex Co. Swamp beyond Springdale | — |
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| Dryopteris clintoniana (Eaton) Dowell | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | Sussex Co. W. of Springdale,… | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5025 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. east of Newton,… | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5026 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mile east… | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5025 | 21 Jul 1907 | United States of America | New Jersey | 1 mile east of Newton | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5025 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mile east… | — |
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| Dryopteris spinulosa Watt | P. Dowell 5027 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mile east… | — |
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| Dryopteris spinulosa Watt | P. Dowell 5027a | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mile east… | — |
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| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small x D. cristata (L.) A.Gray | P. Dowell 5848 | 17 Jul 1909 | United States of America | New Jersey | West Englewood Station | — |
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| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small x D. goldiana (Hook.) A.Gray | P. Dowell 6226 | 18 Jun 1910 | United States of America | New Jersey | Swamp at West Englewood Station | — |
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| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 6173 | 28 May 1910 | United States of America | New Jersey | West Englewood | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 4606 | 03 Sep 1906 | United States of America | New Jersey | above Lake Macopin | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 4606 | 03 Sep 1906 | United States of America | New Jersey | Newfoundland, Lake Macopin | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 4606 | 03 Sep 1906 | United States of America | New Jersey | Lake Macopin, near Newfoundland | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 4606 | 03 Sep 1906 | United States of America | New Jersey | Lake Macopin, Newfoundland | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5069a | 27 Jul 1907 | United States of America | New Jersey | Newfoundland, above Lake Macopin | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5069a | 27 Jul 1907 | United States of America | New Jersey | above Lake Macopin, vicinity of… | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 5069a | 27 Jul 1907 | United States of America | New Jersey | above Lake Macopin, Newfoundland | — |
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| Dryopteris clintoniana (Eaton) Dowell x D. intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 4606 | 03 Sep 1906 | United States of America | New Jersey | Newfoundland, Lake Macopin | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray x D. spinulosa Watt | P. Dowell 5027 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. 1 mile east… | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | Sussex Co. west of Springdale… | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | west of Springdale at 5… | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | Near Big Spring, West of… | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | southwest of Newton, west of… | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | N.E. Newton, W Springdale | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | Swamp w. Springdale, near Newton | — |
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| Dryopteris goldiana (Hook.) A.Gray x D. marginalis (L.) A.Gray | P. Dowell 4931 | 04 Jul 1907 | United States of America | New Jersey | at Big Spring near Newton | — |
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| Schizaea pusilla Pursh | P. Dowell 4184 | 16 Sep 1905 | United States of America | New Jersey | Cedar bog in the Pine… | — |
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| Cystopteris bulbifera (L.) Bernh. | P. Dowell 5024 | 21 Jul 1907 | United States of America | New Jersey | Sussex Co. Vicinity of Newton.… | — |
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| Woodsia obtusa (Spreng.) Torr. | P. Dowell 4821 | 01 Jul 1907 | United States of America | New Jersey | Vicinity of Newton | — |
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| Corallorhiza maculata (Raf.) Raf. var. maculata | P. Dowell s.n. | 09 Aug 1909 | United States of America | New Jersey | Warren Co. Waterloo | — |
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| Liparis loeselii (L.) Rich. | P. Dowell s.n. | 2 Jul 1907 | United States of America | New Jersey | Sussex Co. Andover | — |
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| Dichanthelium depauperatum (Muhl.) Gould | P. Dowell 3671 | 30 May 1904 | United States of America | New Jersey | Ocean Co. | — |
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| Festuca filiformis Pourr. | P. Dowell 4803 | 22 Jun 1907 | United States of America | New Jersey | Essex Co. | — |
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