Displaying 1 - 25 out of 232 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Astragalus crassicarpus Nutt. var. crassicarpus | J. C. Arthur s.n. | May 1870 | United States of America | Iowa | Ames | — | 01247989 |
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| Artemisia dracunculus L. | J. C. Arthur s.n. | Aug 1870 | United States of America | Iowa | Ames | — | 1893826 |
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| Cypripedium candidum Muhl. ex Willd. | J. C. Arthur s.n. | 2 Jun 1872 | United States of America | Iowa | Story Co. Ames | — | 4043820 |
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| Juncus nodosus L. | J. C. Arthur s.n. | 16 Jul 1872 | United States of America | Iowa | Floyd Co. Charles City. | — | 2397194 |
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| Besseya bullii (Eaton & Wright) Rydb. | J. C. Arthur s.n. | 25 May 1874 | United States of America | Iowa | Charles City | — | 28885 |
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| Carya cordiformis (Wangenh.) K.Koch | J. C. Arthur s.n. | 04 Jun 1874 | United States of America | Iowa | Floyd Co. Charles City. | — | 1472293 |
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| Carex bicknellii Britton | J. C. Arthur s.n. | 11 Jun 1874 | United States of America | Iowa | Floyd Co. Charles City, Iowa.… | — | 2251130 |
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| Carex buxbaumii Wahlenb. | J. C. Arthur s.n. | 11 Jun 1874 | United States of America | Iowa | Charles City. | — | 2253213 |
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| Chara contraria A.Braun ex Kütz. | J. C. Arthur s.n. | 04 Jul 1874 | United States of America | Iowa | Cerro Gordo Co. Clear Lake | — | 02012436 |
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| Juncus torreyi Coville | J. C. Arthur s.n. | 03 Aug 1874 | United States of America | Iowa | Floyd Co. Charles City. | — | 2402739 |
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| Salix exigua subsp. interior (Rowlee) Cronquist | J. C. Arthur s.n. | 27 May 1875 | United States of America | Iowa | Floyd Co. Charles City. | — | 2415233 |
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| Poa nemoralis L. | J. C. Arthur s.n. | 12 Jul 1875 | United States of America | Iowa | Floyd Co. Charles City. | — | 1792087 |
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| Calamagrostis canadensis (Michx.) P.Beauv. | J. C. Arthur s.n. | 12 Aug 1875 | United States of America | Iowa | Charles City | — | 1645839 |
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| Astragalus crassicarpus Nutt. var. crassicarpus | J. C. Arthur s.n. | 09 May 1877 - 30 May 1877 | United States of America | Iowa | Ames | — | 01247986 |
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| Carex davisii Schwein. & Torr. | J. C. Arthur s.n. | 02 Jun 1877 | United States of America | Iowa | Ames. | — | 2261925 |
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| Lithospermum occidentale (Mack.) Weakley, Witsell & D.Estes | J. C. Arthur s.n. | 14 Jul 1877 | United States of America | Iowa | Story Co. Ames | — | 21561 |
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| Dalea candida Willd. var. candida | J. C. Arthur s.n. | 14 Jul 1877 | United States of America | Iowa | Ames | — | 01073601 |
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| Carex tribuloides var. cristata Wahlenb. | J. C. Arthur 20 | 18 Jul 1877 | United States of America | Iowa | Story Co. | — | 2307646 |
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| Solidago missouriensis Nutt. | J. C. Arthur s.n. | 21 Aug 1877 | United States of America | Iowa | Story Co. | — | 2353854 |
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| Solidago rigida var. rigida | J. C. Arthur s.n. | 18 Sep 1877 | United States of America | Iowa | Story Co. Ames. | — | 2370739 |
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| Bromus ciliatus L. | J. C. Arthur 734 | 1881 | United States of America | Iowa | — | 1634382 |
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| Puccinia albescens Grev. | J. C. Arthur s.n. | 22 May 1882 | United States of America | Iowa | Charles City | — | 3005687 |
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| Chara formosa C.B.Rob. | J. C. Arthur B | 10 Jul 1882 | United States of America | Minnesota | Hennepin Co. Lake Calhoun | — | 02017709 |
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| Chara braunii C.C.Gmel. | J. C. Arthur D | 14 Jul 1882 | United States of America | Minnesota | Hennepin Co. Oak Lake | — | 02017367 |
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| Chara compacta C.B.Rob. | J. C. Arthur C | 14 Jul 1882 | United States of America | Minnesota | Hennepin Co. Oak Lake | — | 02017711 |
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