Displaying 1 - 25 out of 1030 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Abronia fragrans Nutt. ex Hook. | F. W. Johnson s.n. | 09 May 1910 | United States of America | Colorado | Morgan Co. | — | 3370449 |
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| Acacia angustissima (Mill.) Kuntze | F. W. Johnson s.n. | 21 Sep 1906 | Mexico | Veracruz | Chavarrillo | — | 548157 | ||
| Acacia farnesiana (L.) Willd. var. farnesiana | F. W. Johnson 1812 | 17 Jan 1907 | United States of America | Texas | Bexar Co. | — | 2716418 |
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| Acer campestre L. | F. W. Johnson s.n. | 05 May 1925 | United States of America | New York | Erie Co. | — | 2483393 |
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| Acer glabrum var. douglasii (Hook.) Dippel | F. W. Johnson 1223 | 8-23-13 | — | — | — | 2484026 |
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| Acer spicatum Lam. | F. W. Johnson 1675 | 19 Aug 1918 | United States of America | New York | Erie Co. Eighteen Mile Creek | — | 2490252 |
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| Acer spicatum Lam. | F. W. Johnson 1365 | 22 Jul 1918 | United States of America | New York | Rocky woods, Topper Lake | — | 2490271 |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | F. W. Johnson s.n. | 30 Jul 1905 | United States of America | Wyoming | Laramie Co. Cheyenne. | — | 1553562 |
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| Adiantum capillus-veneris L. | F. W. Johnson s.n. | 22 Apr 1910 | United States of America | Arizona | Canon [Canyon]; Ray. | — | 3482986 |
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| Adiantum concinnum Humb. & Bonpl. ex Willd. | F. W. Johnson s.n. | 21 Sep 1906 | Mexico | Veracruz | Chavarrillo | — | 3915214 |
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| Adiantum poiretii Wikstr. | F. W. Johnson s.n. | 01 Oct 1906 | Mexico | México | Amecameca | — | 3919512 |
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| Aesculus parviflora Walter | F. W. Johnson s.n. | July 15 '98 | United States of America | New York | Stony Pt. Park | — | 2497794 |
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| Agalinis aspera (Douglas ex Benth.) Britton | F. W. Johnson s.n. | 16 Sep 1900 | United States of America | Kansas | Montgomery Co. Cherryvale | — | 3249938 |
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| Agalinis tenuifolia (Vahl) Raf. var. tenuifolia | F. W. Johnson s.n. | 01 Sep 1923 | United States of America | New York | Erie Co. along Niagara River,… | — | 3251949 |
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| Agave lecheguilla Torr. | F. W. Johnson 5 | 06 Oct 1906 | United States of America | Texas | El Paso Co. | — | 3779938 |
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| Agoseris glauca (Pursh) Raf. var. glauca | F. W. Johnson 97 | 31 Jul 1905 | United States of America | Wyoming | Laramie Co. | — | 1876324 |
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| Agoseris glauca (Pursh) Raf. var. glauca | F. W. Johnson 1004 | 30 Jul 1904 | Canada | Saskatchewan | Dry prairies near Caron | — | 1876346 |
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| Agoseris glauca (Pursh) Raf. var. glauca | F. W. Johnson 1428 | 15 Aug 1913 | Canada | Saskatchewan | Prince Albert | — | 1876451 |
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| Agropyron Gaertn. | F. W. Johnson 1090 | 21 Aug 1913 | Canada | Alberta | Banks along Elbow R. Calgary. | — | 1554423 |
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| Agrostis | F. W. Johnson 123 | 03 Aug 1904 | Canada | Saskatchewan | Chamberlain. [Note: Assiniboia]. | — | 1533646 |
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| Agrostis | F. W. Johnson 94 | 31 Jul 1905 | United States of America | Wyoming | Laramie. | — | 1637116 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. W. Johnson s.n. | 21 Aug 1924 | United States of America | New York | Erie Co. "Creek" road, between… | — | 1555630 |
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| Agrostis mertensii Trin. | F. W. Johnson s.n. | 01 Sep 1918 | Canada | Ontario | Niagara Glen | — | 1556407 |
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| Agrostis perennans (Walter) Tuck. | F. W. Johnson s.n. | 01 Sep 1922 | United States of America | New York | Cattaraugus Co. Allegany Park. | — | 1556877 |
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| Agrostis stolonifera L. | F. W. Johnson s.n. | 10 Jul 1926 | Canada | Ontario | Fort Erie | — | 1533026 |
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