PRIORITIES IN GENERIC NOMENCLATURE. 179 



Yancouver Island and eastward to Utah ; running into 

 curious extremes of variability in the character of its achenes; 

 the pappus commonly bright-white, but not rarely sordid. 

 In the var, cryptopleura the achene is inflated to the obliter- 

 ation of almost every trace of the ribs. In var. kymapleura 

 the ribs are broad, wing-like and beautifully wavy. But in 

 all its vagaries the species is readily known from the next by 

 its small ligules, the expanded head seldom measuring three- 

 quarters of an inch in diameter. 



23. A. major, Jepson, MSS, Troximon elatum, Greene. 

 Pitt. i. 71 (18S7). This plant is common from Santa Barbara 

 northward through the inner Coast Range and adjacent plains 

 to the head of Sacramento valley. It does not appear to 

 f^pproach the coast northward, or to trespass on the habitat of 

 A. hcierophijlla^ and is very distinct. If its achenes^ should 

 be found to exhibit the same variability as those of that 

 species, I should suspect this to be the original of Nuttall's 

 Cri/ptopleura Ca?//brnz'ca, which Avas from Santa Barbara; 

 in which case it would, of course, take tliat specific name. 

 These are problems which future investigations wull Lave 



to solve. 



SITILIAS. 



Rafinesque, New Flora, 85 (1836). Pyrrliopappus, DO. 

 Prodr. vii. 144 (1838). 



1. S. Carolij^iana, Raf. 1. c. (1836). Leonhdon Caro- 

 liniamtm, Walt. Carol 192 (1788). Scorzonera lyhinailfida, 

 Miclix. Fl. ii. 89 (1803). Chondvilla laevigata, Pursh, Fl. ii, 

 497 (1814). Barkhausia CaroUniana, Nutt. Gen. ii. 126 

 (1818); Ell. 8k. ii. 251 (1824). Pyrrhopappiis CaroUniamis, 

 DO. Proclr. vii. 144 (1838) ; Gray, Syn. Fl. 441. 



2. 8. MULTiCAULis. Pyrvhopappus mnlticauUs, DC 1. c. 



(1838). 



