14 lEAFiETS. 



New Composites from Oregon, Washington and Idaho. 



Senecio Chapacensis. Perennial, the tufted leaves and 

 low stems from the stout branches of a hard caudex, the whole 

 plant 5-7 inches high, glabrous : basal leaves many, rather 

 fleshy, short-petioled, obovate and oval, cuneate and entire at 

 base, the obtuse or subtruncate apex coarsely crenate, some 

 also laterally crenate : the stout pedunculiform stems with two 

 or three sessile pinnatifid small bracts : heads of less than 

 middle size, 6-18 in a mostly, simple fastigiate corymb ; bracts 

 of involucre 12-15, narrow-lanceolate : rays deep-yellow, ob- 

 long, somewhat narrowed, and sharply 3-toothed at apex. 



Mount Chapaca, in Okanogan Co., Washington, at 4,000 ft., 

 collected by A. D. E. Elmer, Aug., 1897. Collector's n. 592, 

 as on sheet 352360 U. S. Herb. In Mr. Piper's Flora of 

 Washington this is called 5*. cymbalarioides , though there is 

 not one essential point at which it agrees with Nuttall's char- 

 acter of that species. 



Senecio LiGuiviFOLius. Stems one or several, subligneous 

 at base and decumbent around the crown of a taproot, 7-12 

 inches high, the whole plant canescently tomentulose, the wool 

 apt to be more or less deciduous from the upper face of foliage 

 in age : basal leaves mostly tufted on sterile shoots, the nar- 

 rowly oblong obtuse blades not equalling the rather wide 

 petioles, their margins entire, short-revolute, the whole 2-4 

 inches long, the tuft upright ; cauline leaves reduced, few, 

 sessile, entire or toothed, no revolute : heads middle-sized, not 

 very numerous, in a fastigiate corymb ; involucres narrowly 

 subcampanulate, loosely tomentulose at base only : rays rather 

 short, oblong, obtuse, the teeth very short and obscure : pap- 

 pus fragile and deciduous ; achenes glabrous. 



Near Waldo, Oregon, 14 June, 1904, C. V. Piper. Sheet 

 527705, U. S. Herb. 



Senecio leucocrinus. .S. fastigiatus, Nutt. (1841), not 

 of Schweinitz (1824). Since this fine species is in need of a 

 name I give it one that is suggested by its beautiful soft pap- 



