PIPER FLORA OF THE STATE OF WASHINGTON. 421 



3. Lomatium canbyi Coult. & Rose, Contr. Nat. Herb. 7: 210. 1900. 

 Peucedanum canbyi Coult. & Rose, Bot. Gaz. 13: 78. 1888. 



Type locality: "High ridges, E. Oregon." Collected by Howell. 



Range: Eastern Oregon, eastern Washington, and Idaho. 



Specimens examined: Wenache, Whited287; Ellensburg, Whited 287, 258 and May 4, 

 1898; North Yakima, Mrs. Steinweg in 1894; Klickitat Valley, Howell 1367, 67; near 

 Columbus, Suksdorf, April 13, 1886; Davenport, Geo. R. Sawyer, April 13, 1901; Rattle- 

 snake Mountains, Cotton 567; Klickitat Hills, Gorman, April, 1895. 



Zonal distribution: Arid Transition and Upper Sonoran. 



4. Lomatium. farinosum. (Geyer) Coult. & Rose, Contr. Nat. Herb. 7: 210. 1900. 

 Peucedanum farinosum Geyer; Hook. Lond. Journ. Bot. 6: 235. 1847. 



Ferula farinosa Geyer; Hook. Lond. Journ. Bot. loc. cit. 



Type locality: "On an isolated rock in the Coeur d' Aleine Mountains on wet clay." 

 Collected by Geyer. 



Range: Eastern Washington and Idaho. 



Specimens examined: Pine City, Piper, May 6, 1898; Rock Lake, Sandberg <& Leiherg, 

 May, 1893; Rock Creek, Sandberg cfc Leiberg 131; near Spangle, Piper, May 31, 1901; 

 Almota, Piper 2794; Wawawai, Elmer 98; Pifer 1567; Coulee City, Piper 3874; North 

 Palouse River, Vasey, May 25, 1902. 



Zonal distribution: Arid Transition. 



6. Lom.atiiim piperi Coult. & Rose, Contr. Nat. Herb. 7: 211. 1900. 



Type locality: "Ellensburg, Kittitas County, Wash." Collected by G. R. Vasey. 



Range: From the mountains of northern California to Washington. 



Specimens examined: Klickitat Valley, Howell, February 15, May, 1878; Klickitat 

 River, Flett 1304; White Salmon, Suksdorf 278; Klickitat Hills, Gorman, ApiW, 1895. 



Zonal distribution: Arid Transition. 



6. Lom.atium. watsoni Coult. & Rose, Contr. Nat. Herb. 7: 211. 1900. 

 Peucedanum watsoni Coult. & Rose, Bot. Gaz. 13: 209. 1888. 



Type locality: "Simcoe Mts.," Yakima County, Wash. Collected bj- Howell. 

 Range: Mountains of Oregon and Washington.' 



Specimens examined: '^e&r Columbus, Suksdorf ; Klickitat, //owe// 412, 413; Klickitat 

 Hills, Gorman, April, 1895; Simcoe Mountains, Howell 180. 

 Zonal distribution: Arid Transition. 



7. Lomatium ecus (S. Wats.) Coult. & Rose, Contr. Nat. Herb. 7: 214. 1900. 



Cous. Biscuit root. 

 Peucedanum cous S. Wats. Proc. Am. Acad. 21: 453. 1886. 

 Type locality: "John Day's Valley," Oregon. Collected by Howell. 

 Range: Eastern Oregon and Washington and adjacent Idaho. 



Specimens examined: Blue Mountains, Piper 2341 ; Wawawai, fi'/mer 97; above Wawa- 

 wai, Piper, May 6, 1901; Whitman County near Lewiston, B. Hunter 45. 

 Zonal distribution : Arid Transition. 



8. Lomatium circumdatum (S. Wats.) Coult. & Rose, Contr. Nat. Herb. 7: 213. IIXX). 

 Peucedanum circumdatum S. Wats. Proc. Am. Acad. 22: 474. 1887. 



Type locality: "On hillsides in the Wallowa region of eastern Oregon." Collected by 

 Cusick. 



Range: Eastern Oregon and Washington and adjacent Idaho. 



Specimens examined: Blue Mountains, Horner 222. 



This species is not very satisfactorily distinguished from L. cous. Good series of speci- 

 mens for both of these species are needed before their relations can be made clear. 



