Displaying 1 - 75 out of 213 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Abies balsamea (L.) Mill. | J. W. Congdon s.n. | 30 Jun 1873 | United States of America | Vermont | [..., not legible handwriting] | — | 17782 |
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| Achnatherum occidentale (Thurb. ex S.Watson) Barkworth | J. W. Congdon s.n. | 03 Oct 1896 | United States of America | California | Mariposa Co. Chihuahua Trail. | — | 1552980 |
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| Agrostis canina L. | J. W. Congdon s.n. | 04 Jul 1877 | United States of America | Rhode Island | South Kingston. R. I. | — | 1554508 |
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| Agrostis exarata Trin. | J. W. Congdon s.n. | Jul 1883 | United States of America | California | Mariposa Co. [Lunv Creele]. | — | 1555009 |
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| Ambrosia acanthicarpa Hook. | J. W. Congdon 146 | Sept 88 | United States of America | California | Monterey Co. | — | 1877429 |
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| Andromeda glaucophylla Link | J. W. Congdon s.n. | 22 May 1873 | United States of America | Vermont | Burke | — | 2153258 |
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| Antennaria argentea Benth. | J. W. Congdon s.n. | July 12 1885 | United States of America | California | Sonoma Co. Glacier Point, Petaluma. | — | 1889517 |
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| Antennaria argentea Benth. | J. W. Congdon s.n. | April 1883 | United States of America | California | Sonoma Co. Mt. Buckingham, Petaluma. | — | 1889532 |
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| Aralia californica S.Watson | J. W. Congdon s.n. | Jul 1880 - Oct 1880 | United States of America | California | Marin Co. Paper Mill Creek | — | 2557664 |
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| Arctostaphylos mariposa Dudley | J. W. Congdon s.n. | — | United States of America | California | Mariposa Co. Hillside. | — | 2516807 |
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| Arctostaphylos myrtifolia Parry | J. W. Congdon s.n. | 06 Apr 1894 | United States of America | California | Amador Co. Near Ione. | — | 2516881 |
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| Arctostaphylos nummularia A.Gray | J. W. Congdon s.n. | 27 Apr 1893 | United States of America | California | Marin Co. Mt. Tamalpais. | — | 2517036 |
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| Arctostaphylos uva-ursi (L.) Spreng. | J. W. Congdon s.n. | 16 May 1870 | United States of America | Rhode Island | Vue de L'Eau. | — | 2517906 |
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| Arethusa bulbosa L. | J. W. Congdon s.n. | 28 May 1877 | United States of America | Rhode Island | Washington Co. North Kingstown | — | 3997930 |
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| Arnica chamissonis Less. | J. W. Congdon 170 | 17 Aug 1894 | United States of America | California | Mono Co. Walker Lake | — | 1870939 |
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| Arrhenatherum elatius (L.) P.Beauv. ex J.Presl & C.Presl | J. W. Congdon s.n. | 09 Jun 1878 | United States of America | Rhode Island | Kent Co. East Greenwich; near… | — | 1559154 |
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| Artemisia campestris var. canadensis (Michx.) S.L.Welsh | J. W. Congdon s.n. | 01 Aug 1877 | United States of America | Vermont | Orleans Co. | — | 1892865 |
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| Astragalus bolanderi A.Gray | J. W. Congdon s.n. | 30 Jun 1885 | United States of America | California | Sonoma Co. Sand Plains. South… | — | 01244947 |
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| Astragalus bolanderi A.Gray | J. W. Congdon s.n. | 13 Aug 1896 | United States of America | California | Mariposa Co. Crescent Lake | — | 01244949 |
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| Astragalus congdonii S.Watson | J. W. Congdon s.n. | 18 Mar 1883&30 May 1883 | United States of America | California | Mariposa Co. Hite's Cove [on… | probable isotype | 5363 |
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| Astragalus congdonii S.Watson | J. W. Congdon s.n. | May 1892 | United States of America | California | Mariposa Co. Hite's Cove | — | 01247794 |
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| Astragalus douglasii (Torr. & A.Gray) A.Gray var. douglasii | J. W. Congdon s.n. | Jul 1881 | United States of America | California | Monterey Co. Salinas River bed | — | 01248686 |
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| Atriplex mucronata Raf. | J. W. Congdon s.n. | 26 Aug 1873 | United States of America | Rhode Island | Kent Co. | — | 3334532 |
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| Bromus sterilis L. | J. W. Congdon 7-20-76 | May 1877 | United States of America | Rhode Island | Providence Co. | — | 1644722 |
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| Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev | J. W. Congdon s.n. | 24 Jul 1873 | United States of America | Rhode Island | East Greenwich. [Nillinghby]. | — | 1646898 |
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| Calamagrostis neglecta subsp. inexpansa (A.Gray) Tzvelev | J. W. Congdon s.n. | Jul 1843 | United States of America | Vermont | Willoughby Mountain | — | 1646900 |
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| Callitriche marginata Torr. | J. W. Congdon s.n. | Mar 1883 | United States of America | California | Merced Co. | — | 409598 |
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| Carex albicans var. emmonsii (Dewey ex Torr.) Rettig | J. W. Congdon 1565 | Mar 1873 | United States of America | Rhode Island | Johnston. | — | 2264806 |
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| Carex amplifolia Boott | J. W. Congdon s.n. | 11 Aug 1895 | United States of America | California | Mariposa Co. Big Tree Grove | — | 25683 |
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| Carex arctata Boott | J. W. Congdon 1513 | Jun 1875 | United States of America | Vermont | London. | — | 2236665 |
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| Carex aurea Nutt. | J. W. Congdon s.n. | 08 Jul 1877 | United States of America | Rhode Island | Warwick. | — | 2238146 |
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| Carex billingsii (O.W.Knight) Kirschb. | J. W. Congdon s.n. | 29 Jun 1877 | United States of America | Rhode Island | Providence Co. | — | 2309223 |
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| Carex bolanderi Olney subsp. bolanderi | J. W. Congdon s.n. | 14 Jun 1880 | United States of America | California | Mariposa Co. Layla Road. | — | 2251635 |
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| Carex bullata Schkuhr | J. W. Congdon s.n. | 05 Jun 1873 | United States of America | Rhode Island | Providence. | — | 2252914 |
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| Carex bullata Schkuhr | J. W. Congdon 1522 | Jun | United States of America | Rhode Island | Providence. | — | 2252986 |
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| Carex caryophyllea Latourr. | J. W. Congdon s.n. | 28 Jun 1878 | United States of America | Massachusetts | Essex Co. | — | 2254436 |
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| Carex deflexa Hornem. | J. W. Congdon s.n. | 29 Jun 1873 | United States of America | Vermont | Lyndon | — | 2293638 |
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| Carex deweyana Schwein. | J. W. Congdon s.n. | Jul 1873 | United States of America | Vermont | Lyndon. | — | 2262424 |
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| Carex emmonsii var. muhlenbergii (A.Gray ex Torr.) Rettig | J. W. Congdon s.n. | 11 Jun 1878 | United States of America | Rhode Island | Washington Co. South Kingstown. [Inferred… | — | 2275079 |
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| Carex foenea Willd. | J. W. Congdon s.n. | 23 Jun 1873 | United States of America | Rhode Island | Washington Co. | — | 2276546 |
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| Carex heteroneura W.Boott | J. W. Congdon s.n. | 19 Aug 1895 | United States of America | California | Madera Co. Upper San Joaquin. | — | 2190190 |
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| Carex hirtissima W.Boott | J. W. Congdon s.n. | June 9-10, 1?97 | United States of America | California | Tuolumne Co. Hog Ranch above… | — | 2190735 |
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| Carex hystricina Muhl. ex Willd. | J. W. Congdon s.n. | Jul 1873 | United States of America | Vermont | Lyndon. | — | 2191686 |
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| Carex limosa L. | J. W. Congdon s.n. | 09 May 1878 | United States of America | Rhode Island | Providence Co. | — | 2287599 |
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| Carex mesochorea Mack. | J. W. Congdon s.n. | 7/6/81 | United States of America | New Hampshire | White Mts. | — | 2290728 |
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| Carex nervina L.H.Bailey | J. W. Congdon s.n. | 19 Aug 1895 | United States of America | California | Madera Co. Mariposa; Upper San… | — | 2292796 |
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| Carex panicea L. | J. W. Congdon s.n. | 20 May 1877 | United States of America | Rhode Island | Kent Co. | — | 02294855 |
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| Carex peckii Howe | J. W. Congdon 1646 | 22 May 1873 | United States of America | Vermont | Lyndon | — | 2293659 |
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| Carex pedunculata Muhl. ex Willd. | J. W. Congdon s.n. | 22 May 1883 | United States of America | Vermont | Caledonia Co. Lyndon. | — | 2295498 |
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| Carex polymorpha Muhl. | J. W. Congdon 1668 | 30 May 1877 | United States of America | Rhode Island | Near Providence. | — | 2297323 |
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| Carex reznicekii Werier | J. W. Congdon s.n. | May 13, 1877; June 4, 1877 | United States of America | Rhode Island | South Kingston; West Greenwich. | — | 2299714 |
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| Carex rostrata Stokes | J. W. Congdon s.n. | 06 Jun 1878 | United States of America | Rhode Island | Providence Co. | — | 2300777 |
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| Carex scabrata Schwein. | J. W. Congdon s.n. | Jul 1873 | United States of America | Vermont | Caledonia Co. | — | 2302057 |
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| Carex silicea Olney | J. W. Congdon 32421 | 11 Jun 1874 | United States of America | Rhode Island | South Kingstown. | — | 2303686 |
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| Carex silicea Olney | J. W. Congdon s.n. | 19 Jun 1878 | United States of America | Rhode Island | Pt. Judith | — | 2303723 |
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| Carex spicata Huds. | J. W. Congdon s.n. | 28 Jun 1878 | United States of America | Massachusetts | Essex Co. Salem. | — | 2304290 |
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| Carex trisperma Dewey | J. W. Congdon s.n. | 20 Jul 1872 | Canada | Nova Scotia | Guysborough Co. | — | 2308087 |
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| Castilleja exilis A.Nelson | J. W. Congdon C-94 | 18 Aug 1894 | United States of America | California | Mono Co. Mono Lake. | — | 02450664 |
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| Castilleja exilis A.Nelson | J. W. Congdon s.n. | 19 aug 1894 [?] | United States of America | California | Mono Co. Mono Lake. | — | 2450665 |
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| Castilleja montana Congdon | J. W. Congdon s.n. | 24 Aug 1895 | United States of America | California | Mariposa Co. | possible isotype | 68129 |
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| Cephalanthera oregana Rchb.f. | J. W. Congdon s.n. | 20 Jun 1885 - Jul 1885 | United States of America | California | Sonoma Co. | — | 4014069 |
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| Chamaecyparis thyoides (L.) Britton, Sterns & Poggenb. | J. W. Congdon s.n. | — | United States of America | Rhode Island | South Kingstown | — | 16458 |
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| Cirsium californicum A.Gray | J. W. Congdon s.n. | Jun 1882 | United States of America | California | Mariposa Co. Petaluma, Snow Creek | — | 2042354 |
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| Cirsium praeteriens J.F.Macbr. | J. W. Congdon s.n. | Jul 1901 | United States of America | California | Palo Alto. | — | 02052827 |
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| Cyperus odoratus L. | J. W. Congdon s.n. | 14 Sep 1881 | United States of America | California | Tulare Co. Visalia | — | 2815992 |
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| Desmodium sessilifolium Torr. & A.Gray | J. W. Congdon s.n. | 18 Aug 1878 | United States of America | Rhode Island | Kent Co. | — | 2568407 |
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| Desmodium sessilifolium Torr. & A.Gray | J. W. Congdon s.n. | 30 Aug 1877 | United States of America | Rhode Island | Providence Co. | — | 2568456 |
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| Desmodium sessilifolium Torr. & A.Gray | J. W. Congdon s.n. | 18 Aug 1878 | United States of America | Rhode Island | Kent Co. | — | 2568462 |
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| Desmodium sessilifolium Torr. & A.Gray | J. W. Congdon s.n. | Aug 1878 | United States of America | Rhode Island | Kent Co. | — | 2568463 |
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| Dichanthelium oligosanthes (Schult.) Gould | J. W. Congdon s.n. | 21 Jun 1877 | United States of America | Rhode Island | Kent Co. | — | 1714513 |
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| Eatonella congdonii A.Gray | J. W. Congdon s.n. | Mar 1881 | United States of America | California | Tulare Co. Deer Creek | — | 31171 |
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| Equisetum variegatum Schleich. ex F.Weber & D.Mohr var. variegatum | J. W. Congdon s.n. | 21 May 1873 | United States of America | Vermont | Lyndon | — | 3518443 |
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| Eragrostis mexicana subsp. virescens (J.Presl) S.D.Koch & Sánchez Vega | J. W. Congdon s.n. | Sep 1881 | United States of America | California | Tulare Co. | — | 1683563 |
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| Erigeron algidus Jeps. | J. W. Congdon 142 | 16 Aug 1894 | United States of America | California | Mono Co. Bloody Canyon | — | 2076907 |
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| Erigeron breweri var. breweri | J. W. Congdon | 30 Jun 1885 | United States of America | California | Mariposa Co. Big Tree Station | — | 2077931 |
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