318 PHANEROGAM OUS PLANTS. 



suspicion that a broad-leaved Californian form of this species may 

 show that P. latlfolium is not distinct, but we have not yet sufficient 

 materials for determining the question. 



3. Peucedanum triternatum, Nutt. 



Hab. Upper Columbia and Kooskooskee, and in Oregon ; common 

 on hillsides and prairies ; also var. leptocarpum, Torr. & Gray (P. lep- 

 tocarpum, Nutt. in Torr. & Gray) ; common on elevated stony land in 

 the Nez Perces country. — The root is subglobose or oblong, and 

 varies from one inch to four inches in diameter. The natives call it 

 KamsTdt when fresh, and Kanash (Biscuit-root) when dry. It consti- 

 tutes a principal article of their food. They dry it in the sun after 

 peeling off the dark skin, and sometimes pound it into flour and then 

 make it into cakes. Hundreds of bushels of the root are gathered 

 every year in May, according to the Rev. Mr. Spalding. 



4. Peucedanum? ambiguum, Nutt. 



Eulophus ambiguus, Nutt. in Jour. Acad. Pbilad. 7, p. 27. 

 Peucedanum ambiguum, Nutt. in Torr. & Gray, Fl. 1, p. 626. 

 P. jarinaeeum, Hook. PI. Geyer, in Loud. Jour. 6, p. 235? 



Hab. Washington Territory, east of the Cascade Mountains, and 

 on the Kooskooskee River. — The root is globose, and from half an 

 inch to an inch in diameter. As in many other species of the genus, 

 it is farinaceous, and a wholesome article of food. According to Mr. 

 Spalding, the aboriginal name of it is Lakaptat. The description of 

 P. farinaceum, Hook., applies very well to our plant, except that the 

 flowers are white, while Nuttall states that they are yellow in his 

 plant. The description of his plant was made from dried speci- 

 mens collected by Wyeth (one of which I have), and they may 

 have been white when living:. 



J 8- 



5. Peucedanum fceniculaceum, Nutt. 

 Hab. Between the Cascade Mountains and the Columbia River, 



