NEW OB NOTEWORTHY SPECIES. J67 



in the Sierra, ISOO, Mrs. L. A. Rawson Peckinpah. Related 

 to S, Whijjpleanns^ but the heads are small and disposed in 



I 



a very ample compound corymb, and when well in flower 

 appear white by the early lengthening of the pappus. 



Senecio werneri^folius, Gray, Proc. Am. Acad. xix. 54. 



This species, common at middle elevations on the eastern 

 slope of the Rocky Mountains of central Colorado, though 

 not hitherto reported from. elsewhere, was obtained last year 

 in California ; the locality, near the summit of Mt. Conness, 

 one of the highest peaks of the Sierra Nevada, not far from 

 the middle of the State ; the collector Dr. George Davidson. 

 At this new and surprising station — so very remote from the 

 original one — the plants exhibit a rather narrower foliage, 

 more elongated and slender scapes, narrower involucres and 

 somewhat more showy rays. 



Erigeron multiceps. E. cceHpitosus, A^asey & Rose, Contr. 

 U. S. Herb, i. 4, not Nutt. Near E. divergens, but perennial, 

 the thick tap-root bearing a stout multicipital densely leafy 

 caudes : herbac^e cinerous with a short and fine appressed 

 pubescence : lowest leaves with obovate or oblanceolate entire 

 abruptly acute lamina tapering to a petiole mnch longer, this 

 gradually dilated at base; cauline oblanceolate to linear, 

 sessile : stems slender, ascending, loosely corymbose : head 

 2 lines high ; involucre hirsutulous : rays about 75, pale 

 purple : pappus double, the short bristles of the outer row 

 more or less squamately united, the elongated inner ones 5 to 8. 



Collected in Kern or Tulare Co., Calif., in 1888, by Palmer 

 & \y right (n. 121). Though a cespitose perennial, there is 

 nothing about tlie plant to suggest to one experienced in the 

 study of western Erigerons E. ccespiiosus. In aspect and iu 

 character it is altogether like E. divergens. The mere flower- 

 ing stems separated from the caudex, would pass unquestioned 

 for those of that species. 



Erigeron cobonarius. Annual or biennial, strictly erect, 

 simple up to the rather abruptly corymbose-paniculate sura- 



Issued September 15, 1891. 



