298 



similar, but narrower and sessile ; head on a peduncle that is often 

 2-2^ dm. long; bracts 18-20, linear or lanceolate, acute but not 

 acuminate, villous-pubescent : disk 15-18 mm. high; rays fully 

 I ]/>, cm. long, orange ; achenes hirsute, pubescent. 



It is somewhat between A.foliosa incaiia and A. alpina inhabit, 



but differs from both by the long-peduncled solitary head and 



finer pubescence. It was collected by J. H. Flodman in the 



Spanish Basin, July. 11, no. 899 (broad leaved) and July 10, no. 



900 (narrow leaved), 1896. Also collected in Idaho by A. A. & 



Gertrude Heller, no. 3293, 1896, and in Washington during the 



Wilkes expedition. 



Senecio saliens. 



5. triangularis ^ T. N. G. F: Am. 2 & 1. 441. 1834. 



Periennial from a thick rootstock and numerous matted roots ; 

 stem stout, 3-5 dm. high, glabrous, striate ; leaves fleshy, deltoid- 

 triangular, with sahent teeth, the lower petioled, the upper sessile ; 

 inflorescence short, corymbose ; heads about i cm. high ; bracts 

 linear ; rays about 8 mm. long ; achenes glabrous. 



It is nearest related to S. triangularis, differing in the lower 

 stature, the smaller thick and rather fleshy leaves, with fewer 

 coarser less pointed teeth. The following specimens belong to it : 



Montana: J. H. Flodman, no. 919, 1896, from Yigo Baldy in 

 the Little Belt Mountains, altitude 7000 feet.. 



Wyoming : Fremont, in the Wind River Mountains, altitude 

 7000 feet. 



IVashmgton .' Frank Tweedy, 1883, Yakima Region, altitude, 

 6700 feet. 



Senecio pseudaukeus. 



Perennial from a creeping rootstock ; plant perfectly glabrous 

 except the tips of the bracts; stem 5-8 dm. high; basal leaves 

 broadly ovate, somewhat cordate at the base, serrate, 4-7 cm. 

 long, long-petioled ; stem leaves more or less laciniateat the base, 

 the upper sessile; inflorescence corymbose, flat-topped, of 8-10 

 heads about 8 mm. high ; bracts linear ; rays orange, about 8 mm. 

 long. 



It most resembles S. aureus and represents it in the Rockies. 

 It has the same large basal leaves as that species, but they are 

 less cordate at the base, not quite as wide and serrate instead of 

 crenate. S. aureus is a strictly Eastern species. 



Montana: J. H. Flodman, no. 918, from Little Belt Moun- 



