Displaying 1901 - 1925 out of 1985 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Hedeoma diffusa Greene | D. T. MacDougal 326 | 23 Jul 1898 | United States of America | Arizona | Walnut Canyon | — |
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| Astragalus lentiginosus var. diphysus (A.Gray) M.E.Jones | D. T. MacDougal 144 | 18 Jun 1898 | United States of America | Arizona | Collected in the vicinity of… | — |
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| Daucus carota L. | D. T. MacDougal E270 | 14 Oct 1906 | United States of America | New York | Bronx Co. The New York… | — |
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| Cannabis sativa L. | D. T. MacDougal | 04 Aug 1888 | United States of America | Indiana | Putnam Co. | — |
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| Cereus schottii Engelm. | D. T. MacDougal 12497 | 1902 | United States of America | — | possible type |
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| Cereus schottii Engelm. | D. T. MacDougal 12471 | 1902 | United States of America | — | possible type |
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| Cirsium arvense (L.) Scop. | D. T. MacDougal s.n. | 28 May 1890 | United States of America | Indiana | Putnam Co. | — |
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| Hieracium columbianum Rydb. | D. T. MacDougal 109 | 24 Jul 1900 | United States of America | Idaho | Priest River Valley | holotype |
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| Heuchera versicolor f. pumila Rosend., Butters & Lakela | D. T. MacDougal 410a | 07 Aug 1898-10 Aug 1898 | United States of America | Arizona | Collected on Humphrey's Peak of… | isotype |
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| Gentianella heterosepala (Engelm.) Holub | D. T. MacDougal 173a | 28 Jun 1898 | United States of America | Arizona | About Grand Canyon of the… | — |
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| Artemisia diversifolia Rydb. | D. T. MacDougal 190 | 27 Jul 1900 | United States of America | Idaho | Forest between Priest Lake and… | holotype |
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| Oenothera biennis L. | D. T. MacDougal D40.1.2 | 01 Sep 1905 | United States of America | New York | Bronx Co. New York Botanical… | — |
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| Asclepias syriaca L. | D. T. MacDougal s.n. | 17 Jul 1904 | United States of America | New York | Bronx Co. Bronx Park | — |
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| Brahea dulcis (Kunth) Mart. | D. T. MacDougal 25716 | 1906 | Mexico | — | — |
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| Prosopis glandulosa var. torreyana (L.D.Benson) M.C.Johnst. | D. T. MacDougal s.n. | 1 Apr 1905 | Mexico | Baja California Sur | — | |||||
| Riccia frostii Austin | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | — |
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| Wilcoxia sykesii | D. T. MacDougal s.n. | 1923 | Mexico | Sonora | possible type |
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| Ostrya knowltonii Coville | D. T. MacDougal 193 | 28 Jun 1898 | United States of America | Colorado | — |
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| Erechtites hieraciifolius (L.) Raf. ex DC. | D. T. MacDougal 20938 | 1989 | United States of America | Indiana | — |
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| Polypodium hesperium Maxon | D. T. MacDougal s.n. | 1891 | United States of America | Arizona | — |
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| Aspidotis densa (P.Brack) Lellinger | D. T. MacDougal s.n. | Jul 1892 | United States of America | Idaho | — |
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| Dryopteris filix-mas (L.) Schott | D. T. MacDougal s.n. | 1892 | United States of America | Idaho | — |
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| Woodsia oregana D.C. Eaton | D. T. MacDougal s.n. | 1891 | United States of America | Arizona | — |
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| Adiantum capillus-veneris L. | D. T. MacDougal s.n. | 1891 | United States of America | Arizona | — |
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| Pellaea wrightiana Hook. | D. T. MacDougal s.n. | 1891 | United States of America | Arizona | — |
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