Displaying 1 - 75 out of 509 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Abies balsamea (L.) Mill. | L. H. Pammel 1190 | 27 Jul 1925 | United States of America | Minnesota | Itasca State Park | — | 17728 |
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| Acer nigrum F.Michx. | L. H. Pammel 70 | 21 May 1926 | United States of America | Iowa | Coon River west of Perry | — | 2486975 |
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| Acer saccharum Marshall | L. H. Pammel s.n. | 17 Jun 1926 | United States of America | Iowa | Davenport | — | 2488883 |
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| Acer saccharum Marshall | L. H. Pammel 529 | 14 Jul 1926 | United States of America | Michigan | Green | — | 2489018 |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | L. H. Pammel 39 | 25 Jun 1896 | United States of America | Colorado | Larimer Co. Cache Le Pondre… | — | 1553283 |
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| Achnatherum lemmonii (Vasey) Barkworth | L. H. Pammel s.n. | 01 Jul 1897 | United States of America | Wyoming | Geranium Park | — | 1487127 |
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| Achnatherum robustum (Vasey) Barkworth | L. H. Pammel 49 | 07 Jul 1896 | United States of America | Colorado | Larimer Co. Cache Le Poudre… | — | 1553875 |
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| Aecidium pammelii Trel. | L. H. Pammel Baker65 | s.d. | United States of America | Wisconsin | La Crosse | probable isotype | 611277 |
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| Aecidium pammelii Trel. | L. H. Pammel s.n. | s.d. | United States of America | Wisconsin | La Crosse | probable isotype | 611273 |
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| Aecidium pammelii Trel. | L. H. Pammel s.n. | s.d. | United States of America | Wisconsin | La Crosse | probable isotype | 611274 |
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| Aecidium pammelii Trel. | L. H. Pammel s.n. | s.d. | United States of America | Wisconsin | La Crosse | probable isotype | 611275 |
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| Aecidium pammelii Trel. | L. H. Pammel s.n. | s.d. | United States of America | Wisconsin | La Crosse | probable isotype | 611276 |
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| Aecidium pammelii Trel. | L. H. Pammel | 1883 | United States of America | Wisconsin | probable isotype | 611278 |
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| Aesculus glabra Willd. | L. H. Pammel 96 | 14 May 1926 | United States of America | Iowa | Polk Co. | — | 2497532 |
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| Agrostis exarata Trin. | L. H. Pammel 34 | 07 Jul 1896 | United States of America | Colorado | Larimer Co. Beaver Creek. | — | 1555359 |
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| Albugo bliti (Biv.) J.E.Kuntze | L. H. Pammel 104 | Jul 1883 | United States of America | Wisconsin | La Crosse Co. La Crosse | — | 2759883 |
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| Albugo bliti (Biv.) J.E.Kuntze | L. H. Pammel s.n. | Aug 1886 | United States of America | Wisconsin | Vernon Co. Bloomingdale | — | 02767852 |
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| Albugo candida (Pers.) Roussel | L. H. Pammel s.n. | Nov 1882 | United States of America | Wisconsin | Dane Co. Madison | — | 2771230 |
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| Albugo candida (Pers.) Roussel | L. H. Pammel 103 | Nov 1882 | United States of America | Wisconsin | Dane Co. Madison | — | 2771284 |
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| Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle | L. H. Pammel s.n. | Sep 1886 | United States of America | Missouri | St. Louis | — | 2771875 |
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| Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle | L. H. Pammel s.n. | 1886 | United States of America | Missouri | St. Louis | — | 2771876 |
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| Albugo tragopogonis (Pers.) Gray | L. H. Pammel 105 | Jun 1880 | United States of America | Wisconsin | La Crosse Co. La Crosse | — | 2767287 |
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| Allium brevistylum S.Watson | L. H. Pammel 360 | 25 Jun 1897 | United States of America | Wyoming | Sheridan Co. Above Big Horn | — | 3761874 |
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| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen | L. H. Pammel 446 | 11 Jul 1926 | United States of America | Michigan | Green. | — | 2471910 |
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| Alnus incana subsp. tenuifolia (Nutt.) Breitung | L. H. Pammel s.n. | July 1896 | United States of America | Colorado | Larimer Co. Tributaries of South… | — | 2472204 |
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| Amblystegium serpens (Hedw.) Schimp. | L. H. Pammel | 01 Nov 1886 | United States of America | Illinois | — | 535594 | |||
| Ambrosia trifida L. | L. H. Pammel 28 | Sep 1904 | United States of America | Iowa | Story Co. | — | 1884365 |
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| Amorpha fruticosa L. | L. H. Pammel 183 | 25 Jun 1926 | United States of America | Iowa | Delaware Co. on banks of… | — | 2559200 |
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| Andropogon gerardii Vitman | L. H. Pammel 104 | 28 Aug 1896 | United States of America | Iowa | Story Co. Ames, Iowa | — | 1639241 |
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| Androsace filiformis Retz. | L. H. Pammel s.n. | Jul 1897 | United States of America | Wyoming | Sheridan Co. Rapid Creek Park | — | 3591974 |
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| Anemone multifida Poir. var. multifida | L. H. Pammel 161 | 28 Jun 1899-01 Aug 1899 | United States of America | Wyoming | — | 483407 |
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| Anticlea elegans (Pursh) Rydb. | L. H. Pammel 362 | 26 Jun 1897 | United States of America | Wyoming | Sheridan Co. Above Big Horn. | — | 3688239 |
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| Apios americana Medik. | L. H. Pammel 17 | 22 Aug 1896 | United States of America | Iowa | Story Co. | — | 2560404 |
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| Aralia nudicaulis L. | L. H. Pammel 474 | Jul 1926 | United States of America | Michigan | Northern Michigan | — | 2558141 |
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| Arctostaphylos manzanita Parry | L. H. Pammel s.n. | 13 Mar 1926 | United States of America | California | Monterey Co. Carmel. | — | 2516734 |
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| Arctostaphylos manzanita Parry | L. H. Pammel s.n. | 11 Feb 1926 | United States of America | California | Cay[awauca] Mts. S Calif. | — | 2516795 |
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| Aristida purpurea var. longiseta (Steud.) Vasey | L. H. Pammel 392 | 07 Jul 1895 | United States of America | Nebraska | McCook. | — | 1632385 |
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| Aristida purpurea var. longiseta (Steud.) Vasey | L. H. Pammel 2 | 23 Jun 1896 | United States of America | Colorado | Morgan Co. | — | 1632489 |
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| Arnica chamissonis Less. | L. H. Pammel 256 | June, 1897 | United States of America | Wyoming | Sheridan Co. Rapid Creek Park | — | 1870614 |
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| Arnica fulgens Pursh | L. H. Pammel 255 | July, 1897 | United States of America | Wyoming | Sheridan Co. Rapid Creek Park | — | 1881423 |
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| Arthuriomyces peckianus (Howe) Cummins & Y.Hirats. | L. H. Pammel s.n. | Jun 1883 | — | — | Madison Wir | — | 3014784 |
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| Astragalus canadensis L. var. canadensis | L. H. Pammel 14 | 18 Jul 1896 | United States of America | Iowa | Ames | — | 01247133 |
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| Avena fatua L. | L. H. Pammel 8 | August, 1904 | United States of America | North Dakota | Fargo, N.D. | — | 1634737 |
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| Bahia oppositifolia (Nutt.) DC. | L. H. Pammel 298 | Jun 1897 | United States of America | Wyoming | Sheridan Co. Gillette | — | 1923103 |
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| Basidiophora entospora Roze & Cornu | L. H. Pammel s.n. | Jun 1886 | United States of America | Massachusetts | Essex. | — | 1959107 |
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| Betula alleghaniensis Britton | L. H. Pammel 503 | 13 Jul 1926 | United States of America | Michigan | Ontonagon, Mich. | — | 2475511 |
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| Betula alleghaniensis Britton | L. H. Pammel 445 | 14 Jul 1926 | United States of America | Michigan | Green, Mich. | — | 2475512 |
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| Betula alleghaniensis Britton | L. H. Pammel s.n. | June 1826 | United States of America | Iowa | Dubuque Co. Price Creek Harbor | — | 2475551 |
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| Betula papyrifera Marshall | L. H. Pammel 1326 | July 18 | United States of America | Minnesota | Cass Lake | — | 2477141 |
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| Bidens | L. H. Pammel s.n. | Jun 1897 | United States of America | Wyoming | Sheridan Co. Sheridan | — | 1910969 |
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| Bidens frondosa L. | L. H. Pammel 63 | 22 Aug 1896 | United States of America | Iowa | Boone Co. Ledges | — | 1909832 |
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| Bidens vulgata Greene | L. H. Pammel 64 | 22 Aug 1896 | United States of America | Iowa | Ames | — | 1910838 |
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| Bidens vulgata Greene | L. H. Pammel 19 | 1914 | United States of America | Iowa | Ames | — | 1910840 |
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| Bistorta bistortoides (Pursh) Small | L. H. Pammel s.n. | 28 Jun 1897 | United States of America | Wyoming | Sheridan Co. Dome Lake, Elk… | — | 3063145 |
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| Bouteloua gracilis (Kunth) Lag. ex Griffiths | L. H. Pammel 6 | 23 Jun 1896 | United States of America | Colorado | Ft. Morgan | — | 1643589 |
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| Bremia lactucae Regel | L. H. Pammel s.n. | Aug. & Sept. 1890 | United States of America | Iowa | Story Co. Ames | — | 01960808 |
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| Bromus anomalus Rupr. ex E.Fourn. | L. H. Pammel 20 | 01 Jul 1896 | United States of America | Colorado | Larimer Co. Cache Le Poudre… | — | 1631566 |
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| Bromus ciliatus L. | L. H. Pammel 24 | 03 Jul 1896 | United States of America | Colorado | Larimer Co. Cahe La Poudre… | — | 1634272 |
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| Bromus hordeaceus L. | L. H. Pammel s.n. | May 1887 | United States of America | Maryland | Crystal City | — | 1636097 |
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| Bromus pumpellianus var. melicoides Shear | L. H. Pammel 45 | 08 Jul 1896 | United States of America | Colorado | Larimer Co. Cache La Poudre… | type | 346239 |
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| Bromus purgans var. latiglumis Scribn. ex Shear | L. H. Pammel 222 | Aug 1896 | United States of America | Iowa | Dakota City | isotype | 346241 |
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| Bromus tectorum L. | L. H. Pammel s.n. | 16 May 1926 | United States of America | Iowa | Commerce, Albert Tract [?] | — | 664490 |
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| Calamagrostis purpurascens R.Br. | L. H. Pammel s.n. | 02 Jul 1896 | United States of America | Colorado | Larimer Co. Cache Le Poudre… | — | 1647227 |
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| Calamovilfa longifolia (Hook.) Hack. ex Scribn. & Southw. | L. H. Pammel 187 | 29 May 1896 | United States of America | Iowa | Sioux City | — | 1647835 |
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| Calochortus nuttallii Torr. | L. H. Pammel 166 | 28 Jun 1899 - 01 Aug 1899 | United States of America | Wyoming | Elk Mt. | — | 3524984 |
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| Campanula rotundifolia L. | L. H. Pammel 330 | 25 Jun 1897 | United States of America | Wyoming | Sheridan Co. Above Big Horn. | — | 3739570 |
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| Cannabis sativa L. subsp. sativa | L. H. Pammel 185 | Sep 1896 | United States of America | Iowa | Story Co. | — | 1414509 |
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| Carex douglasii Boott | L. H. Pammel s.n. | 27 Jul 1902 | United States of America | Wyoming | Myer's Ranch, Bear R. | — | 2263557 |
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| Carex grisea Wahlenb. | L. H. Pammel s.n. | 04 Jun 1926 | United States of America | Iowa | Rice Lake | — | 2278977 |
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| Carex oligocarpa Schkuhr | L. H. Pammel s.n. | 25 Jul 1897 | United States of America | Iowa | Marshall Co. Marshalltown | — | 2294050 |
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| Carex shortiana Dewey | L. H. Pammel 218 | 17 Jun 1926 | United States of America | Iowa | Davenport; Wild Cat Den | — | 2303451 |
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| Carex sprengelii Dewey ex Spreng. | L. H. Pammel 69 | 21 May 1926 | United States of America | Iowa | Dallas Co. Coon River, W… | — | 2304387 |
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| Carex sprengelii Dewey ex Spreng. | L. H. Pammel 416 | 20 Jul 1897 | United States of America | Iowa | Kossuth Co. Ledyard. | — | 2304385 |
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| Carex tuckermanii Dewey | L. H. Pammel 454 | July 1926 | United States of America | Michigan | Northern Michigan. | — | 2308386 |
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| Carex tuckermanii Dewey | L. H. Pammel 454 | July 1926 | United States of America | Michigan | Northern Michigan. | — | 2308395 |
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