Displaying 1 - 25 out of 5933 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Potamogeton curtissii Morong | A. H. Curtiss 2 | May 1886 | United States of America | Florida | Blackwater River, N.W. Florida | holotype |
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| Potamogeton hybridus Michx. | W. S. Blatchley s.n. | 03 Oct 1889 | United States of America | Indiana | Vigo Co. [Pond south of… | — |
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| Potamogeton diversifolius Raf. | A. R. Bechtel 12480 | 14 Jul 1929 | United States of America | Indiana | Montgomery Co. Jackson Farm, northwest… | — |
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| Potamogeton diversifolius Raf. | S. McCoy 4261 | 23 Aug 1935 | United States of America | Indiana | Sullivan Co. Shall pond near… | — |
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| Potamogeton foliosus var. macellus Fernald | A. R. Bechtel 12854 | 11 Jul 1931 | United States of America | Indiana | Montgomery Co. In a run… | — |
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| Potamogeton oakesianus J.W.Robbins ex A.Gray | J. W. Robbins s.n. | 18 Aug | United States of America | Massachusetts | In stagnis et fossis. [E… | probable type |
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| Potamogeton clystocarpus Fernald | J. A. Moore 3088 | 15 Jun 1931 | United States of America | Texas | Jeff Davis Co. Little Aguja… | isotype |
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| Potamogeton pusillus var. gemmiparus A.Gray | J. W. Robbins s.n. | s.d. | United States of America | Massachusetts | In aquis quietis vallis fluvii… | syntype |
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| Potamogeton porteri Fernald | T. C. Porter s.n. | 05 Oct 1860 | United States of America | Pennsylvania | Lancaster Co. Dillerville Swamp near… | isotype |
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| Potamogeton spoliatus Hagstr. | G. H. E. W. Hieronymus 1655 | s.d. | — | — | Lagunas de Pictiada, South America | isotype |
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| Potamogeton fragillimus Hagstr. | E. T. Heyde 4075 | Sep 1892 | Guatemala | Jalapa | Laguna de Ayarza | isotype |
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| Potamogeton insulanus Hagstr. | P. E. E. Sintenis 2537 | 08 Sep 1885 | Puerto Rico | — | Aguas Buenas | isotype |
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| Potamogeton gramineus L. x P. illinoensis Morong | C. C. Deam s.n. | 17 Jun 1903 | United States of America | Indiana | Steuben Co. In bed of… | — |
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| Potamogeton tuckermanii J.W.Robbins ex A.Gray | E. Tuckerman s.n. | s.d. | United States of America | New Hampshire | White Mountains | syntype |
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| Potamogeton burkartii Horn ex Tur | A. C. Scala 54 | Jan 1914 | Argentina | Buenos Aires | Delat, Río Chaná | isotype |
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| Potamogeton zosteriformis Fernald | C. A. Davis s.n. | 12 Jul 1893 | United States of America | Michigan | Gratiot Co. Millpond. | isotype |
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| Potamogeton rectifolius A.Benn. | Collector unspecified 171.1900 | 14 Sep 1900 | United States of America | Illinois | Cook Co. Stony Island | syntype |
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| Potamogeton pusillus var. gemmiparus J.W.Robbins | J. W. Robbins s.n. | 1870 | United States of America | Massachusetts | Worcester Co. Blackstone Valley | isolectotype |
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| Potamogeton pusillus var. gemmiparus J.W.Robbins | J. W. Robbins s.n. | 1870 | United States of America | Massachusetts | Worcester Co. Blackstone Valley | lectotype |
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| Potamogeton rotundatus Hagstr. | C. G. Pringle 1390 | 08 Sep 1887 | Mexico | Chihuahua | Guerrero | syntype |
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| Potamogeton diversifolius var. trichophyllus Morong | N. L. Britton s.n. | 31 Aug 1883 | United States of America | New Jersey | Sussex Co. Lake Marcia | holotype |
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| Potamogeton angustifolius Bercht. & J.Presl | C. C. Deam 55350 | 16 Aug 1934 | United States of America | Indiana | Lagrange Co. In Atwood Lake,… | — |
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| Potamogeton angustifolius Bercht. & J.Presl | A. R. Bechtel 13647 | 30 Jul 1933 | United States of America | Indiana | Steuben Co. In Bass Lake | — |
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| Potamogeton x mysticus Morong | Collector unspecified s.n. | 01 Sep 1879 | United States of America | Massachusetts | Middlesex Co. Mystic Pond | — |
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| Potamogeton | S. McCoy 4189 | 04 Aug 1935 | United States of America | Indiana | Marshall Co. Lake Naxinkuckee | — |
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