378 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Specimens examined: South Arbor, Lami 1112; Fairhaven, Piper, July 2, 1897; Coupe- 

 ville, Gardner 87; Port Ludlow, Binns, September 15, 1890; Fidalgo Js\&nd, Lyall in 1858; 

 Bellingham Bay, Suksdorf 1S23; Everett, Piper, July 9, 1892; Clallam County, Elmer 2528. 



Zonal distribution: Humid Transition. 



11. Lathyrus coriaceus White, Bull. Torr. Club 21: 452. 1894. 

 Type locality': Wasatch Mountains, Utah. 



Range: Washington to Arizona. 



Specimens examined: Seattle, 0. Piper; Wen&che,Whited 148; Ellensburg, Piper 2720; 

 Whited, July 9, 1897; Toppenish and Tampico, Henderson 2345; Topponish, Henderson in 

 1892; North Yakima, Leckenby; base Mount Adams, Ffe« 1260, 12(K)a; Klickitat River, 

 Henderson 2344; Wenache, Griffiths & Cotton 147; Wenas, Griffiths dh Cotton 106; Clealum 

 Lake, Cotton 843; Kittitas Valley, Cotton 1208. 



Zonal distribution: Upper Sonoran. 



12. Lathyrus pauciflorus Femald, Bot. Gaz. 19: 335. 1894. 



Lathyrus parvifdius S. Wats. Proc. Am. Acad. 17: 345. 1882, not Roth. 1797. 



Lathyrus shaffneri Rydberg, Mem. N. Y. Bot. Gard. 1 : 258. 1900. 



Type locauty: Roseburg, Oregon. 



Range: Washington and Idaho to California and Mexico. 



Specimens examined: Nisqually Valley, AUen 132; west Klickitat County, SuJcsdorfin 

 1886; EUensburg, Piper 2679; Wenache Region, Brandegee 735; Wenache, Whited 1106; 

 Waitaburg, Homer 96; Wawawai, Piper, June 13, 1896; Lake <k Hull, June 4, 1892; 

 Almota, Piper 2797 and May 27, 1893. 



Zonal distribution: Upper Sonoran and Arid Transition. 



Suksdorf' s specimens were distributed and later listed as L. pclyvwrphus Nutt., a species 

 that does not reach our borders. 



12a. Lathyrus pauciflorus tenuior Piper, Fl. Palouse Reg. 108. 1901. 



Type locality : Near Almota, Washington. 



Range: Eastern Washington. 



Specimens examined: West Klickitat County, Suksdorf, April 23, 1886; Wenache, 

 Whited 127, 150, 2, 1107; Waitsburg, Horner 95; Almota, ?2me.r 52; Union Flat, Piper 

 2733; without locality, Fa«ey in 1889; Yfeaaa, Griffiths & Cotton 8f5; Wenache Mountains, 

 Griffiths <fc Cotton 129. 



Zonal distribution: Arid Transition and Upper Sonoran. 



Lathyrus venosus Muhl. Suksdorf lists this species, but we can discover no good 

 evidence that it occurs in the State. 



GERANIACEAE. Geranium Family. 



Leaves palmate, variously cleft or divided Geranium (p. 378) . 



Leaves pinnately compound (in ours) Erodium (p. 380) . 



GERANIUM. 



Perennials; flowers large 1. 6*. viscosissimum. 



Annuals; flowers small. 



Seeds reticulate or pitted. 



Flowers deep purple ; seeds pitted .* 4.0. dissectum. 



Flowers pale purple; seeds reticulately lilgeJ. 



Peduncles short; inflorescence compact 2.G. carolinianum. 



Peduncles long; inflorescence loose 3.G. bickneUii. 



Seeds smooth or nearly so. 



Carpels canescent, not rugose 5.G. pusHlum. 



Carpels glabrous, rugose &.G. moUe. 



