12 i,b;afi:,BTS. 



Pyrrocoma prionophyi<la. Stems upright, 2 feet high, 

 stout, glabrous, the bark whitish, almost polished, racemose 

 from above the middle : basal leaves a foot long, including 

 the very broad and short scarcely petiolar base, narrowly 

 oblong-lanceolate, less than an inch wide, very coarsely and 

 evenly serrate-toothed, everywhere glabrous except as to the 

 finely scabrous margin ; cauline leaves much reduced, sessile, 

 more finely and more saliently serrate : heads small for the 

 plant, forming a short and rather strict raceme ; involucres 

 broadly turbinate, much imbricated, the bracts coriaceous, 

 but with green tips which are pungently acute : rays rather 

 small and few, light-yellow. 



Eagle Valley, Nevada, C. F. Baker, Aug., 1902, his n. 1450 

 as in U. S. Herb. 



Pyrrocoma subcaesia. Small plants quite like P^ calen- 

 dulacea in habit and size, larger ones nearly a foot high and 

 more than monocephalous, the stronger stems corymbosely 

 sustaining 3 large and subequal heads ; bark of stems reddened 

 and sparsely villous-tomentose ; herbage otherwise altogether 

 of a dull glaucescent green and rather firm ; basal leaves 

 elliptic-lanceolate, acute ; cauline spatulate-lanceolate to ovate- 

 lanceolate, minutely but strongly reticulate, glabrous except 

 as to the denticulate-scabrous margins : involucre low-hemi- 

 spherical, large, 1 to 1/^ inches wide, bracts spatulate-oblong, 

 mainly herbaceous, very acute, loosely villous-hairy on the 

 back, marginally villous-ciliate ; rays 20 or more, clear yel- 

 low, showy ; achenes closely low-ribbed and loosely pilose ; 

 pappus scanty, coarse. 



Panguitch I^ake, Utah, at 8,400 feet, M. E. Jones, 7 Sept., 

 1894. 



Pyrrocoma crepidinea. Many-stemmed and low, 3 or 

 4 inches high, whitened with a kind of soft silky wooliness : 

 basal leaves lanceolate or elliptic, short-petioled, 1>^ to 2 

 inches long, somewhat dentate ; cauline leaves ovate-lanceo- 

 late, with broad subcordate-clasping base ; the decumbent 

 stems bearing usually three slender-peduncled small heads; 

 involucres rather full-hemispherical, their small bracts in two 



