Displaying 1 - 25 out of 919 Object(s)

Taxon Collector Date Country State/Province Locality Type Status Barcode
Abietinella abietina (Hedw.) M.Fleisch. T. A. Williams 13 Aug 1891 United States of America South Dakota Rapid City — 467736
Acarospora T. A. Williams s.n. 27 Jul 1897 United States of America South Dakota Belle Fourche River, at Egge's… — 4586881 Acarospora
Acer glabrum Torr. T. A. Williams s.n. 23 Jun 1890 — — — 2483948 Acer glabrum Torr.
Achnatherum richardsonii (Link) Barkworth T. A. Williams 26761/2 25 Jul 1897 United States of America Wyoming Welcome — 1553848 Achnatherum richardsonii (Link) Barkworth
Aecidium micropunctum Ellis & Everh. T. A. Williams 42 18 Jun 1890 United States of America Nebraska Pine Ridge isotype 611222 Aecidium micropunctum Ellis & Everh.
Agaricus silvicola (Vittad.) Sacc. T. A. Williams s.n. 9/25-99 United States of America Maryland Montgomery Co. Takoma Park — 1979833 Agaricus silvicola (Vittad.) Sacc.
Agoseris aurantiaca (Hook.) Greene var. aurantiaca T. A. Williams s.n. 24 Jul 1897 United States of America Montana Bear Lodge — 1867488 Agoseris aurantiaca (Hook.) Greene var. aurantiaca
Agrostis T. A. Williams s.n. July 16-18, 1897 United States of America Idaho Montpelier — 1637086 Agrostis
Agrostis perennans (Walter) Tuck. T. A. Williams s.n. 22 May 1899 United States of America District of Columbia Takoma Park. — 1556926 Agrostis perennans (Walter) Tuck.
Albugo bliti (Biv.) J.E.Kuntze T. A. Williams s.n. 1890 United States of America Nebraska Saunders Co. Ashland. — 2759916 Albugo bliti (Biv.) J.E.Kuntze
Albugo candida (Pers.) Roussel T. A. Williams s.n. 23 Sep 1895 United States of America South Dakota Brookings Co. Brookings. — 2771292 Albugo candida (Pers.) Roussel
Albugo candida (Pers.) Roussel T. A. Williams s.n. Aug 1889 United States of America Nebraska Cass Co. Weeping Water — 2771207 Albugo candida (Pers.) Roussel
Albugo candida (Pers.) Roussel T. A. Williams s.n. 4/27-'90 United States of America Nebraska Saunders Co. Ashland. — 2771305 Albugo candida (Pers.) Roussel
Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle T. A. Williams s.n. Sep 1889 United States of America Nebraska Saunders Co. Ashland. — 2771892 Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle
Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle T. A. Williams s.n. 15 Jul 1899 United States of America District of Columbia Takoma Park — 2771865 Albugo ipomoaea-panduratae (C.Schweinf.) D.B.Swingle
Albugo tragopogonis (Pers.) Gray T. A. Williams s.n. Aug 1891 United States of America South Dakota Brookings Co. Brookings. — 2767259 Albugo tragopogonis (Pers.) Gray
Albugo tragopogonis (Pers.) Gray T. A. Williams s.n. Aug 1891 United States of America South Dakota Brookings Co. Brookings. — 2767284 Albugo tragopogonis (Pers.) Gray
Albugo tragopogonis (Pers.) Gray T. A. Williams s.n. Aug 1891 United States of America South Dakota Brookings Co. Brookings. — 2767346 Albugo tragopogonis (Pers.) Gray
Allium brevistylum S.Watson T. A. Williams s.n. 19 Aug 1898 United States of America Wyoming North Fork Clear Creek, Big… — 3761871 Allium brevistylum S.Watson
Allium brevistylum S.Watson T. A. Williams s.n. Aug 1898 United States of America Wyoming Big Horn Mountains — 3761870 Allium brevistylum S.Watson
Amorpha nana Nutt. T. A. Williams 406 03 Aug 1891 United States of America South Dakota Hughes Co. Bluffs of Missouri — 2559853 Amorpha nana Nutt.
Amorpha nana Nutt. T. A. Williams s.n. 04 Aug 1891 United States of America South Dakota Bluffs of Missouri River, Ft.… — 2559862 Amorpha nana Nutt.
Anaphalis margaritacea (L.) Benth. & Hook.f. T. A. Williams s.n. 20 Aug 1898 United States of America Wyoming Soldier Park. Big Horn Mts. — 1884733 Anaphalis margaritacea (L.) Benth. & Hook.f.
Androsace filiformis Retz. T. A. Williams s.n. 21 Aug 1898 United States of America Wyoming Head of French Cr. Big… — 3591969 Androsace filiformis Retz.
Androsace septentrionalis L. T. A. Williams s.n. 26 Jul 1897 United States of America Wyoming Welcome — 3592442 Androsace septentrionalis L.