Displaying 1 - 75 out of 343 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Helianthus tuberosus L. | P. Dowell s.n. | Sep 1900 | United States of America | Pennsylvania | Lehigh Co. | — |
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| Helianthus tuberosus L. | P. Dowell s.n. | Sep 1900 | United States of America | Pennsylvania | Lehigh Co. | — |
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| Helianthus tuberosus L. | P. Dowell s.n. | Oct 1900 | United States of America | Pennsylvania | Lehigh Co. | — |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | P. Dowell 1012 | 06 Oct 1900 | United States of America | Pennsylvania | Northampton Co. Howertown [no prec.… | — |
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| Symphyotrichum lanceolatum var. lanceolatum | P. Dowell 1020 | 10 Oct 1900 | United States of America | Pennsylvania | Lehigh Co. vicinity of Allentown | — |
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| Asplenium trichomanes L. | P. Dowell s.n. | 1900 | United States of America | Pennsylvania | Allentown | — |
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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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| Carex aggregata Mack. | P. Dowell 1389 | 13 May 1902 | United States of America | District of Columbia | Washington Park. | — |
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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 lurida Wahlenb. | P. Dowell 1432 | 21 May 1902 | United States of America | District of Columbia | Anacostia River. | — |
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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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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | P. Dowell 1510 | 08 Jun 1902 | United States of America | District of Columbia | Takoma | — |
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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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| 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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| Coleataenia anceps (Michx.) Soreng | P. Dowell 1645 | 08 Aug 1902 | United States of America | District of Columbia | Kenilworth, D. C. | — |
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| Agrostis perennans (Walter) Tuck. | P. Dowell 1678 | 09 Aug 1902 | United States of America | Maryland | Hyattsville. | — |
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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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| Aristida oligantha Michx. | P. Dowell 1684 | 16 Aug 1902 | United States of America | District of Columbia | Rock Creek | — |
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| Osmunda regalis L. | P. Dowell 2133 | 23 May 1903 | United States of America | New York | Richmond Co. Near Port Richmond,… | — |
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| Populus heterophylla L. | P. Dowell 2250 | 21 Jun 1903 | United States of America | New York | Richmond Co. Huguenot Park | — |
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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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| Symphyotrichum lateriflorum var. lateriflorum | P. Dowell 2380 | 10 Sep 1903 | United States of America | New York | Richmond Co. near Port Richmond,… | — |
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| Panicum virgatum L. | P. Dowell 2448 | 13 Sep 1903 | United States of America | New York | Richmond Co. South Avenue | — |
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| Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve | P. Dowell 2570 | 22 Sep 1903 | United States of America | New York | Richmond Co. near Port Richmond,… | — |
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| Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve | P. Dowell 2570 | 22 Sep 1903 | United States of America | New York | Richmond Co. near Port Richmond | — |
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| Physalis heterophylla Nees | P. Dowell 2593 | 25 Sep 1903 | United States of America | New York | Richmond Co. Bloodroot Valley | — |
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| Symphyotrichum patens (Aiton) G.L.Nesom var. patens | P. Dowell 2609 | 26 Sep 1903 | United States of America | New York | Richmond Co. Richmond Hill | — |
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| Quercus x heterophylla Michx. | P. Dowell 2715 | 04 Oct 1903 | United States of America | New York | Richmond Co. Richmond Valley | — |
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| Solidago juncea Aiton | P. Dowell 2737 | 17 Oct 1903 | United States of America | New York | Huguenot Park, Staten Island | — |
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| Solidago gigantea Aiton | P. Dowell 2748 | 24 Oct 1903 | United States of America | New York | Richmond Co. Near Port Richmond,… | — |
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| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small x D. goldiana (Hook.) A.Gray | P. Dowell 2758 | 31 Oct 1903 | United States of America | New York | Richmond Co. Arlington Swamp at… | — |
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| Dryopteris bootii Underw. | P. Dowell 2805 | 14 Nov 1903 | United States of America | New York | Richmond Co. Swamp at 1… | — |
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| Dryopteris carthusiana (Vill.) H.P.Fuchs | P. Dowell 2812 | 29 Nov 1903 | United States of America | New York | Richmond Co. Bulls Head | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray x D. spinulosa Watt | P. Dowell 2813b | 29 Nov 1903 | United States of America | New York | Bulls Head | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray x D. spinulosa Watt | P. Dowell 2815 | 29 Nov 1903 | United States of America | New York | On Staten Island. Bulls Head | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 2816 | 13 Dec 1903 | United States of America | New York | New Springville | — |
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| Dryopteris marginalis (L.) A.Gray | P. Dowell 2817 | 13 Dec 1903 | United States of America | New York | Richmond Co. New Springville | — |
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| Dryopteris intermedia (Muhl. ex Willd.) A.Gray | P. Dowell 2823 | 20 Dec 1903 | United States of America | New York | Richmond Co. Arlington Sta. | — |
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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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| Juncus gerardii Loisel. | P. Dowell 2874 | 01 Jun 1904 | United States of America | New York | Foot of Bard Ave.; Staten… | — |
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| Juncus gerardii Loisel. | P. Dowell 2875 | 01 Jun 1904 | United States of America | New York | Foot of Bard Ave.; Staten… | — |
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| Botrychium virginianum (L.) Sw. | P. Dowell 2885 | 05 Jun 1904 | United States of America | New York | Richmond Co. Richmond County Farm | — |
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| Dryopteris goldiana (Hook.) A.Gray | P. Dowell 2919 | 21 Jun 1904 | United States of America | New York | Richmond Co. Arlington Sta. | — |
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| Dryopteris carthusiana (Vill.) H.P.Fuchs | P. Dowell 2923 | 25 Jun 1904 | United States of America | New York | Richmond Co. Arlington Sta. | — |
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| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small x D. cristata (L.) A.Gray | P. Dowell 2922 | 25 Jun 1904 | United States of America | New York | Richmond Co. Arlington Sta. | — |
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| Athyrium thelypterioides (Michx.) Desv. | P. Dowell 2929 | 25 Jun 1904 | United States of America | New York | Richmond Co. Arlington Sta. | — |
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| Dryopteris marginalis (L.) A.Gray | P. Dowell 2926 | 25 Jun 1904 | United States of America | New York | On Staten Island. Arlington Sta. | — |
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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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| Distichlis spicata (L.) Greene | P. Dowell 3307 | 27 Aug 1904 | United States of America | Maryland | Chesapeake Beach | — |
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| Agalinis tenuifolia (Vahl) Raf. var. tenuifolia | P. Dowell 2940 | 09 Sep 1904 | United States of America | New York | Richmond Co. Palmer Run, Port… | — |
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| Bidens frondosa L. | P. Dowell 2988 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road,… | — |
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| Spiranthes cernua (L.) Rich. | P. Dowell 2985 | 10 Sep 1904 | United States of America | New York | Collected on Staten Island. Old… | — |
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| Veronica scutellata L. | P. Dowell 2962 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road,… | — |
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| Vernonia noveboracensis (L.) Michx. | P. Dowell 2986 | 10 Sep 1904 | United States of America | New York | Richmond Co. near Port Richmond,… | — |
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| Symphyotrichum novi-belgii (L.) G.L.Nesom | P. Dowell 2981 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road | — |
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| Polygala nuttallii Torr. & A.Gray | P. Dowell 2977 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road,… | — |
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| Polygala nuttallii Torr. & A.Gray | P. Dowell 2978 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road,… | — |
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| Agalinis purpurea (L.) Pennell var. purpurea | P. Dowell 2953 | 10 Sep 1904 | United States of America | New York | Richmond Co. Old Quarry Road,… | — |
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| Eupatorium rotundifolium var. saundersii (Porter ex Britton) Cronquist | P. Dowell 2982 | 10 Sep 1904 | United States of America | New York | Old Quarry Road, Port Richmond,… | — |
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| Eupatorium rotundifolium var. saundersii (Porter ex Britton) Cronquist | P. Dowell 2983 | 10 Sep 1904 | United States of America | New York | Old Quarry Road, Mariners Harbor,… | — |
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| Euthamia tenuifolia (Pursh) Greene | P. Dowell 2976 | 10 Sep 1904 | United States of America | New York | Old Quarry Road, Mariners Harbor,… | — |
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| Symphyotrichum dumosum (L.) G.L.Nesom | P. Dowell 3395 | 11 Sep 1904 | United States of America | New York | Richmond Co. Staten Island, South… | — |
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| Eupatorium dubium Willd. ex Poir. | P. Dowell 3384 | 11 Sep 1904 | United States of America | New York | South Beach, Staten Island | — |
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| Distichlis spicata (L.) Greene | P. Dowell 3382 | 11 Sep 1904 | United States of America | New York | Richmond Co. | — |
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| Polygala verticillata L. | P. Dowell 3389 | 11 Sep 1904 | United States of America | New York | Richmond Co. South Beach | — |
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| Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve | P. Dowell 3415 | 15 Sep 1904 | United States of America | New York | Richmond Co. Port Richmond | — |
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| Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve | P. Dowell 3415 | 15 Sep 1904 | United States of America | New York | Richmond Co. Port Richmond, Palmer… | — |
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| Eurybia spectabilis (Aiton) G.L.Nesom | P. Dowell 3434 | 17 Sep 1904 | United States of America | New York | Arlington, Staten Island. | — |
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| Solidago puberula Nutt. | P. Dowell 3430 | 17 Sep 1904 | United States of America | New York | Richmond Co. Staten Island. Arlington. | — |
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| Pteridium aquilinum (L.) Kuhn | P. Dowell 3437 | 17 Sep 1904 | United States of America | New York | Richmond Co. Mariner Harbor | — |
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| Woodwardia areolata (L.) T.Moore | P. Dowell 3435 | 17 Sep 1904 | United States of America | New York | Richmond Co. Mariner Harbor | — |
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| Woodwardia areolata (L.) T.Moore | P. Dowell 3435 | 17 Sep 1904 | United States of America | New York | Richmond Co. Mariners Harbor | — |
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| Woodwardia areolata (L.) T.Moore | P. Dowell 3435 | 17 Sep 1904 | United States of America | New York | Richmond Co. Mariners Harbor | — |
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