CONTRIBUTIOXS TO U'ESTERN BOTANY. 7 



E. caespitosum var. Douglassii (Bcnth. DC. Prod. 14 9.) 



Peduncles bracted in the middle, with leaflike bracts ; flowers 

 3-4 line long. This is nonnally a tnore robust form of the Blue 

 Mts., region. It also occurs at Reno. Xevada, and northward. 



E. csespitosum var Kelloggii (Gray Proc. Am. Acad. 8 293.) 



This is a similar plant with smaller glabrous flowers and more 

 villous pubescence, which occurs near !\It. Shasta, Calif. 



E. Lobbi var. robustum (Greene Proc. Cal. Acad. 3 127.) 



Densely matted and rigid; leaves 1-2 inches long, much 

 thicker, short petioled, often rhomboidal : peduncles, petioles and 

 inflorescence, densely white-shaggy ; inflorescence very compound, 

 dense and long bracted, forming a cluster 1-3 inches long; flowers 

 2J/2 lines long, very broad and rounded, floral peduncles very 

 stout, 1-2 inches long, erect. Grows in the Middle Temperate 

 life zone in Westerji Nevada, along the Sierras, at Reno. 



E. flavumvar. polyphyllum (Small. Rydb. Fl. Mont. 119.) 



Involucres sessile and heads large and subtended by leafy 

 bracts which equal or exceed the heads. In the most reduced 

 fornis the leaves are not over an inch long, densely clustered and 

 petioles not visible ; peduncles almost none to 2 inches long. High 

 alpine, Colorado, and northward. 



E, flaTum var. androsaceum (Benth. DC. Prod. 14.^ 



Flowers narrow, mostly gradually reduced to a sTiort stipe, 

 varyiiig from greenish-yellow' to light yellow in the type ; scapes 

 and rays slender; leaves and bracts nearly linear, insensibly re- 

 duced, with the petiole longer than the blade ; plants prominently 

 villous all over, the crowns not so densely clustered as in E. caes- 

 pitosum. Upper Temperate life zone of Idaho, Montana and 

 northward to Lat. $6 degrees in British America. 



E. flaram var. Piperi (Greene Pitt. 3 263.) 



Frowers yellowish-white, sharply reduced to a long stripe; 



