372 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Astragalus arredus jxdousensis Jones, Contr. Western Bot. 10: 68. 190"-. 

 Type locality: Kooskooskee [Clearwater] River, Idaho. Collected bj- Geyer. 

 Range: Eastern Washinorton, Eastern Oregon, and adjacent Idaho. 

 Specimens examined: Pullman, Piper 1493; Elmer in 1896; without locality, Vasey 

 in 1889. 



Zonal distribution: Arid Transition. 



10a. Phaca arrecta leibergii (Jones). 



Afilragahis arredus leibergii Jones, Contr. TVPstern Bot. 10: 68. 1902. 



Aslragahis leibergii Jones, Proc. Cal. Acad. II. 6: ()63. 189r). 



Type uxality: "Egbert Springs," Douglas County, Washington. Collected by Sand- 

 berg & Leiljerg. 



Range: Eastern Washington. 



Specimens examined: Kg\^rt i^prings, Sandherg (& Leiberg 354. 



20. Phaca mortoni (Nutt.). 



Astragalus mortoni Nutt. Jouni. Acad. Phila. 7: 19. 1834. 



Type ixk:ality: "About the .sources and upp<'r branches of the Missouri." Collected 

 by Nuttall. 



Kanoe: Washington to Sa.skatchewan, Dakota, and Nevada. 



Specimens examined: Ellensburg, Whited; North Yakima, Henderson, May, 1892; 

 WaW, August, 189.5; Mrs. Steinweg m 1894; Simco<> Valley, Li/n// in 1860; Egbert Springs, 

 Sandberg d: UHterg 341; Beaver Creek, ^yhited 22, 232; Wilson Creek, Lake cfc Hull 667; 

 Spokane, Henderson, July, 1892: Pij)er, June, 1897: Blue Mountains, Pifer, July, 1896; 

 Almota, Piper 1864; without hx-ality, Vasey in 1889; Clarks Springs, Kreager 79. 



Zonal distribution : Arid Transition and Upper Sonoran. 



21. Phaca adsurgena (Pall.). 



A.itragalus adsurgeris Pall. Astrag. 40. pi. 31. 1800. 

 Astragalus whurgens robustior II<M)k. Fl. Bor. Am. 1: 149. 18.30. 

 Astragalus nitidus Dougl.; Hook. loc. cit. as synonym. 

 Astragalus striatris Nutt.; Torr. & Gr Fl. 1: 3.30. 1838. 



Type locality: "In regionem Trans-Baicalcnsibus, frequens ad Selengiun, Ononem 

 circa Tarei-noor et usque in Mongoliae desertum." 



Range: British Columbia to Saskatchewan, south to Oregon and Kansas. Siberia. 

 Specimens examined: Silver Lake, Henderson 2359. 



22. Phaca agrestis (Dougl.). ^ 

 Astragalus agrestis Dougl.; Hook. F'l. Bor. Am. 1: 148. 1830. as synoiiynL 

 Astragalus hypoglotlis of American authors. 



Type locality: "On the fertile plains of the Red River, and in the south, towards 

 Pembina." 



Range: Alaska to Hudson Bay, Nebraska, and Colorado. 



Specimens examined: Ophir, Elmer 422; Ellensburg, Whited 457; Coulee City, Piper 

 3872; SpUlman, May, 1896; Sprague, Henderson 2361; Sandberg & Leiberg 137; Spokane 

 County, Mrs. Susan Tncker, in 1892; Spangle, Piper, June, 1899; Crab Creek, Suksdorf 

 286; Loomis, Griffiths & Cotton 344; Okanogan, Griffiths <& Cotton 265. 



Zonal distribution : Arid Transition. 



23. Phaca reventa (A. Gray). 



Astragalus reventns A. Gray, Proc. Am. Acad. 16: 46. 1879. 



Type locality: "Interior of Oregon." Collected by Lyall. 



Range: Eastern Oregon and Eastern Washington. 



Specimens examined: North Yakima., Henderson in 1892; Mrs. Steinweg;T&mpico,Henr- 

 dersonin 1892; Klickitat County, J. Howell, in 1878 and 1882; Cleman Mountain, Hender- 

 son; Bishops, Piper 2887; Wawawai, Elmer 795, 3059; Blue Mountains, Lake & Hull 

 688; without locality, Vasey, in 1889. 



Zonal distribution: Arid Transition. 



