Displaying 1 - 25 out of 478 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Castilleja latebracteata Pennell | C. S. Williamson s.n. | 27 Apr 1903 | United States of America | — | High bridge of Pecos [?]. | isotype |   | |||
| Lythrum salicaria L. | C. S. Williamson 1272 | 06 Aug 1910 | Canada | Quebec | Montmorency Falls | — |   | |||
| Pinus banksiana Lamb. | C. S. Williamson 1015 | 24 Jul 1911 | Canada | Quebec | L'Islet du Massacre, Bic | — |   | |||
| Penstemon smallii A.Heller | C. S. Williamson s.n. | August | United States of America | North Carolina | Balsam | — |   | |||
| Amaranthus pumilus Raf. | C. S. Williamson s.n. | — | United States of America | North Carolina | Seacoast near Wilmington. | — |   | |||
| Amaranthus pumilus Raf. | C. S. Williamson s.n. | 01 Sep | United States of America | North Carolina | Sea Beach near Wrightsville | — |   | |||
| Sphagnum teres (Schimp.) Ångstr. | C. S. Williamson | 07 Aug 1911 | Canada | Newfoundland and Labrador | Caribou Island, Battle Harbour, Labrador | — | ||||
| Cytisus scoparius (L.) Link | C. S. Williamson s.n. | 15 May 1910 | United States of America | Pennsylvania | Crum Lynn Station | — |   | |||
| Juniperus horizontalis Moench | C. S. Williamson 2287 | — | United States of America | Michigan | Keweenaw Co. Rock Harbor, Isle… | — |   | |||
| Picea glauca (Moench) Voss var. glauca | C. S. Williamson 1019 | 15 Jul 1911 | Canada | Quebec | Bic | — |   | |||
| Eriocaulon parkeri B.L.Rob. | C. S. Williamson s.n. | 28 Jul 1906 | United States of America | New Jersey | Camden Co. | — |   | |||
| Eriocaulon parkeri B.L.Rob. | C. S. Williamson s.n. | 02 Oct 1905 | United States of America | New Jersey | Camden Co. | — |   | |||
| Selaginella acanthonota Underw. | C. S. Williamson s.n. | Jul 1892 | United States of America | North Carolina | Wilmington | holotype |   | |||
| Marshallia williamsonii Small | C. S. Williamson s.n. | 02 Sep 1900 | United States of America | North Carolina | Wilmington | holotype |   | |||
| Thuja occidentalis L. | C. S. Williamson 1020 | 13 Jul 1911 | Canada | Quebec | Bic | — |   | |||
| Zygophyllum fabago L. | C. S. Williamson s.n. | — | United States of America | Pennsylvania | Karghn [?Karghn's] | — |   | |||
| Echinochloa crus-galli (L.) P.Beauv. | C. S. Williamson s.n. | s.d. | United States of America | Pennsylvania | Philadelphia Co. Philadelphia | — |   | |||
| Eragrostis pectinacea (Michx.) Nees | C. S. Williamson s.n. | s.d. | United States of America | Pennsylvania | Philadelphia Co. Philadelphia | — |   | |||
| Eragrostis refracta (Muhl.) Scribn. | C. S. Williamson s.n. | 30 Aug 1900 | United States of America | North Carolina | Weldon | — |   | |||
| Arabidopsis thaliana (L.) Heynh. | C. S. Williamson s.n. | [collector lived 1857-1914] | United States of America | Pennsylvania | Philadelphia Co. | — | ||||
| Carya illinoinensis (Wangenh.) K.Koch | C. S. Williamson s.n. | 12 Jul 1908 | United States of America | New York | Cape May | — |   | |||
| Carya ovata (Mill.) K.Koch | C. S. Williamson s.n. | May | — | — | Phil a | — |   | |||
| Juglans cinerea L. | C. S. Williamson s.n. | 17 May 1908 | United States of America | Pennsylvania | Montgomery Co. Sumneytown | — |   | |||
| Agropyron Gaertn. | C. S. Williamson s.n. | Aug | — | — | Phil [Note: no country, state]. | — |   | |||
| Agrostis perennans (Walter) Tuck. | C. S. Williamson 771 | 18 Aug 1911 | United States of America | New York | St. John's. | — |   |