374 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



29. Phaca serotina (A. Gray). 



Aslidijdius wroliniis A. Gray, Pac. Iv. Rep. 12-': ")!. ISiiO. 



Type LOC.\LrrY: "On the Okanogan, near the Golunil)ia River," Wasliington. Collected 

 by, Cooper. 



Range: Eastern Washington. 



Specimens examined: "On the Okanogan, near the Columbia River, Lat. 48°, Oct. 

 Cooper": Walla Walla Region, Brandegee 733; Ritzville, Sandherg d; Leiberg 473, 163; 

 Conconully, Whiied 1309; without locality, Vasey 273; Loomis, Griffiths & Cotton 343. 



Zonal distribution: Arid Tran.sition. 



30. Phaca viridis (Nutt.). 



Astragalus viridis (Nutt.) Sheldon, Minn. Bot. Stud. !■': 118. 1894. 



Eentrophyta viridis Nutt.; Torr. & Gr. Fl. 3.53. 1838. 



Kentrophyta montana Nutt.; Torr. & Gr. Fl. 353. 183S. 



Astragalus 'kentrophyta A. Gray, Proc. Acad. Phila. 1863: 60. 186.'^. 



Type locality: "Hills of the Platte." Collected by Nuttall. 



Range: South Dakota to New Mexico, Washington, and British America. 



Specimens examined: Walla Walla Region, Brandegee 734. 



Astragalus lanocaupus Sheldon, Minn. Bot. Studies 1: 144. 1894, was based on a 

 plant collected by Joseph Howell in 1878 at Klickitat Prairie, Washington. We have not 

 seen this species. It is a close ally of A. purshii, from wliicli it is said to be distinguished 

 by having narrow leaflets and stiff-hairy pods. 



VICIA. Vetch. 



Flowers in spikes or racemes on axillary peduncles. 



Annuals ; peduncles few-flowered : flowers very small , bluish- 

 white 4. V. h irsvtd. 



Perennials; peduncles mostly many-flowered. 



Flowers ochroleucous or tawny ' 3.1'. gigantea. 



Flowers violet or blui.sh-purple, rarely white. 



Raceme 1-sided, densely 15 to 40-flowered 1. T'. cracca. 



Raceme loosely 5 to 20-flowered; leaflets ovate to 



oblong, acutish 2. T^. americana. 



Leaflets truncate . 2n. U. americana truncafa. 



Leaflets linear 2a. V. americana linearis. 



Flowers axillary, solitary or in twos, nearly sessile. 



Leaflets oblong to ovate; pods brown 5. V. sativa. 



Leaflets linear or linear-oblong; pods black 6. F. angustifoUa. 



1. Vicia cracca L. Sp. PL 2: 73.5. 1753. 

 Type locality: Europe. 



Range: British Columbia to Newfoundland, New Jersey, and Kansas. 

 Specimens examined: Whatcom County, Suksdorf-Mr-y, Gardner 418. 



2. Vicia americana Muhl.; Willd. Sp. PI. 3: 1096. 1801. 

 Vicia oregana Nutt.; Torr. & Gr. Fl. 1: 270. 1838. 

 Vicia sparsifolia Nutt.; Torr. & Gr. Fl. 1 : 270. 1838. 

 Type locality: "Habitat in Pennsjdvania." 



Range: British Columbia to New York and southward to Mexico. 



Specimens examined: Montesano, Heller 3951; Clallam County, Elmer 2534; Mason 

 County , Kincaid; 0\ym^\&, Eincaid; Tacoma, FZe<< 897; west Klickitat County , Suksdorf 

 2014, 2122; North Yakima, Mrs. Steinweg; Wenache, Whited 1.50, 1266, 1080; Ellensburg, 

 Whited; Cold Creek, Cotton 399; Sunnyside, Cotton 372; Little Spokane River, Kreager 

 599; Crab and Wilson Creeks, Sandherg & Leiherg -308; Almota, Piper 1486; Tukanon 

 River, Lake d- Hull 437; Loomis, Griffiths ci- Cotton 339. 



Zonal distribution: Upper Sonoran and Transitioiu 



