Displaying 8851 - 8925 out of 9002 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Solanum corneliomulleri J.F.Macbr. | R. S. Williams 2525 | 08 Aug 1901 | Peru | — | Arequipa | — |
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| Mimosa albida Humb. & Bonpl. ex Willd. var. albida | R. S. Williams 1449 | 23 Aug 1902 | Bolivia | — | Santa Cruz | — |
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| Mimosa pudica var. unijuga (Duchass. & Walp.) Griseb. | R. S. Williams 100 | 23 Feb 1908 - 22 Mar 1908 | Panama | — | Penonome and vicinity | — |
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| Solanum wrightii Benth. | R. S. Williams 647 | 13 Nov 1901 | Bolivia | — | San Buena Ventura | — |
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| Solanum velutissimum Rusby | R. S. Williams 2392 | 31 Aug 1901 | Bolivia | — | Sorata | — |
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| Solanum riparium Pers. | R. S. Williams 620 | 26 Nov 1901 | Bolivia | — | San Buena Ventura | — |
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| Solanum riparium Pers. | R. S. Williams 620 | 26 Nov 1901 | Bolivia | — | San Buena Ventura | — |
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| Solanum roseum (Rusby) Bohs | R. S. Williams 1556 | 30 Aug 1902 | Bolivia | — | Santa Barbara. | — |
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| Solanum unilobum (Rusby) Bohs | R. S. Williams 373 | 29 Nov 1901 | Bolivia | — | San Buena Ventura. | — |
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| Senna bacillaris (L.f.) H.S.Irwin & Barneby var. bacillaris | R. S. Williams 560 | 05 Mar 1908 - 19 Mar 1908 | Panama | — | Bismarck | — |
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| Mimosa revoluta (Kunth) Benth. | R. S. Williams 2413 | 30 Aug 1901 | Bolivia | — | Sorata | — |
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| Mimosa pigra var. dehiscens (Barneby) Glazier & Mackinder | R. S. Williams 744 | 01 Oct 1901 | Bolivia | — | Isapuri | — |
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| Mimosa pigra var. dehiscens (Barneby) Glazier & Mackinder | R. S. Williams 744 | 01 Oct 1901 | Bolivia | — | Isapuri | — |
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| Sphenolobus saxicola (Schrad.) Steph. | R. S. Williams | 10 Oct 1898 | Canada | Yukon | Klondike. | — | ||||
| Sphenolobus saxicola (Schrad.) Steph. | R. S. Williams | 10 Oct 1898 | Canada | Yukon | Klondike. | — | ||||
| Sphenolobus saxicola (Schrad.) Steph. | R. S. Williams | 10 Oct 1898 | Canada | Yukon | Klondike. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 08 Sep 1898 | Canada | Yukon | Dawson. | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 24 May 1898 | Canada | British Columbia | Lindeman [label as Yukon Region] | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 24 May 1898 | Canada | British Columbia | Lindeman [label as Yukon Region] | — | ||||
| Sphenolobus minutus (Schreb.) Berggr. ex D.Crantz | R. S. Williams | 24 May 1898 | Canada | British Columbia | Lindeman [label as Yukon Region] | — | ||||
| Matthaea williamsii Perkins | R. S. Williams 2430 | 07 Mar 1905 | Philippines | — | Sax River, Prov. Zamboanga. Mindanao. | isotype |
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| Matthaea williamsii Perkins | R. S. Williams 2430 | 07 Mar 1905 | Philippines | — | Sax River, Prov. Zamboanga. Mindanao. | type |
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| Osmoxylon luzoniense (Merr.) Philipson | R. S. Williams 1123 | 15 Jul 1904 | Philippines | Benguet | Bagui, [island of] Luzon | — |
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| Osmoxylon luzoniense (Merr.) Philipson | R. S. Williams 1123 | 15 Jul 1904 | Philippines | Benguet | Bagui, [island of] Luzon | — |
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| Osmoxylon eminens (W.Bull) Philipson | R. S. Williams 2150 | 11 Feb 1905 | Philippines | Zamboanga del Sur | Sax River, Mindanao | — |
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| Osmoxylon eminens (W.Bull) Philipson | R. S. Williams 2150 | 11 Feb 1905 | Philippines | Zamboanga del Sur | Sax River, Mindanao | — |
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| Osmoxylon eminens (W.Bull) Philipson | R. S. Williams 2150 | 11 Feb 1905 | Philippines | Zamboanga del Sur | Sax River | — |
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| Phyllanthus acuminatissimus C.B.Rob. | R. S. Williams 2807 | 16 May 1905 | Philippines | Davao del Sur | Santa Cruz, SE Mindanao | lectotype |
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| Centratherum punctatum Cass. subsp. punctatum | R. S. Williams 90 | 23 Feb 1908-22 Mar 1908 | Panama | — | Penonome and vicinity | — |
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| Centratherum punctatum Cass. subsp. punctatum | R. S. Williams 1154 | 23 Feb 1908-22 Mar 1908 | Panama | — | Penonome and vicinity | — |
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| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams 110 | 20 Apr 1897 | United States of America | Montana | Bad-rock Cañon, Flathead River | — | ||||
| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams | 20 Apr 1897 | United States of America | Montana | Bad-rock Cañon, Flathead River | — | ||||
| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams | 09 Oct 1898 | Canada | Yukon | Klondike River bottom | — | ||||
| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams | 09 Oct 1898 | United States of America | — | Yukon Region, Klondike River bottom | — | ||||
| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams | 09 Oct 1898 | United States of America | — | Yukon Region, Klondike River bottom | — | ||||
| Barbilophozia barbata (Schreb.) Loeske | R. S. Williams 110 | 20 Apr 1897 | United States of America | Montana | Flathead Co. Badrock Canyon, Flathead… | — | ||||
| Rhynchospora exaltata Kunth | R. S. Williams 1656 | 24 Jul 1902 | Bolivia | — | Near Apolo | — |
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| Baccharis | R. S. Williams 206 | 22 Mar 1908-23 Mar 1908 | Panama | — | Penonome and vicinity | — |
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| Senna reticulata (Willd.) H.S.Irwin & Barneby | R. S. Williams 364 | 23 Feb 1908 - 22 Mar 1908 | Panama | — | Penonome and vicinity | — |
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| Senna undulata (Benth.) H.S.Irwin & Barneby | R. S. Williams 596 | 18 Mar 1908 | Panama | — | Bismark above Penonome | — |
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| Acmella ciliata (Kunth) Cass. | R. S. Williams 732 | 17 Apr 1908-8 Jun 1908 | Panama | — | Cana and vicinity | — |
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| Octoblepharum pulvinatum (Dozy & Molk.) Mitt. | R. S. Williams 1862 | 03 Jan 1902 | Bolivia | La Paz | Tumupasa. | — |
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| Jungermannia exsertifolia Steph. | R. S. Williams 15 | 09 Aug 1891 | United States of America | Montana | Lake Co. McDonald Lake | — | ||||
| Solenostoma comatum (Nees) C.Gao | R. S. Williams 1914 | 20 Sep 1904 | Philippines | Benguet | northern Luzon, between Baguio and… | — | ||||
| Thuidium tomentosum Schimp. ex Besch. | R. S. Williams 2005 | 18 Jun 1902 | Bolivia | — | near Aten. | — |
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| Coleosanthus diffuens | R. S. Williams 710 | 15 Apr 1908 | Panama | — | Pasa below Cana | — |
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| Arthonia patellulata Nyl. | R. S. Williams 62 | 03 Mar 1899 | Canada | Yukon | Dawson. | — |
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| Aspicilia A.Massal. | R. S. Williams 82a | 11 Jun 1899 | Canada | Yukon | Dawson. | — |
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| Arthonia patellulata Nyl. | R. S. Williams 62 | 03 Mar 1899 | Canada | Yukon | Dawson. | — |
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| Aspicilia cinerea (L.) Körb. | R. S. Williams 55 | 09 Apr 1899 | Canada | Yukon | Dawson. | — |
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| Cynodontium tenellum (Bruch & Schimp.) Limpr. | R. S. Williams 526 | 12 May 1898 | Canada | British Columbia | Lake Lindeman | — | ||||
| Brachythecium salebrosum (Hoffm. ex F.Weber & D.Mohr) Schimp. | R. S. Williams | 12 May 1898 | Canada | British Columbia | Lake Lindeman | — | ||||
| Brachythecium turgidum (Hartm.) Kindb. | R. S. Williams | 26 May 1898 | Canada | British Columbia | Lake Lindeman | — | ||||
| Bacidia | R. S. Williams 79 | 28 May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Caloplaca | R. S. Williams 27 | Sep 1898 | Canada | Yukon | Dawson. | — |
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| Cetraria islandica (L.) Zahlbr. | R. S. Williams 15a | 07 May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Dactylina arctica (Richardson) Nyl. | R. S. Williams 95 | 20 May 1898 | Canada | British Columbia | Above Lake Lindeman | — |
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| Diploschistes scruposus (Schreb.) Norman | R. S. Williams 23 | 02 Apr 1899 | Canada | Yukon | near summit of Moosehide Mt.,… | — |
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| Icmadophila ericetorum (L.) Zahlbr. | R. S. Williams 24 | May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Lecidea | R. S. Williams 50 | 20 May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Lecidea | R. S. Williams 49 | 09 Apr 1899 | Canada | Yukon | Dawson. | — |
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| Ochrolechia | R. S. Williams 63 | 12 May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Ochrolechia | R. S. Williams 63a | May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Racomitrium canescens (Hedw.) Brid. | R. S. Williams 608 | 27 Mar 1898 | United States of America | Alaska | Sheep Camp, Dyea creek | — | ||||
| Phacopsis Tul. | R. S. Williams 66 | 23 Apr 1899 | Canada | Yukon | Dawson. | — |
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| Claopodium pellucinerve (Mitt.) Best | R. S. Williams 655 | 27 Mar 1898 | United States of America | Alaska | Cañon City, Dyea creek | — | ||||
| Claopodium pellucinerve (Mitt.) Best | R. S. Williams 655 | 27 Mar 1898 | United States of America | Alaska | Cañon City, Dyea creek | — | ||||
| Porpidia flavicunda (Ach.) Gowan | R. S. Williams 59 | 15 May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Porpidia macrocarpa (DC.) Hertel & A.J.Schwab | R. S. Williams 59 | May 1898 | Canada | British Columbia | Lake Lindeman | — |
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| Sphaerophorus globosus (Huds.) Vain. | R. S. Williams 32 | Mar 1898 | United States of America | Alaska | Sheep Camp, Dyea creek | — |
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