CALIFORNIA ACADEMY OF SCIENCES. 89 



rowly linear or filiform : heads few, or numerous in a cymose 

 panicle, each subtended by some subulate bracts : involucres 

 glandular, their scales numerous, unequal, green-tipped and 

 very regularly imbricated: rays none: akenes somewhat hir- 

 sute. — E. inomatus, var. angustatus, Gray, Syn. Fl. 215. 



As strictly confined to the foot-hills of the Coast Range as 

 E. inomatus is to the higher Sierra. Distinguishable from 

 that species at a glance by the glandular, numerous and 

 much imbricated scales of the involucre. 



HELIANTHELLA. 



Two species — one of them belonging to the Coast Range, 

 and the other as strictly limited to the region of the Sierra 

 Nevada — have hitherto been confounded. In general aspect 

 they are exceedingly alike, but are most dissimilar in char- 

 acters of the akene. I distinguish them as follows : 



H. Californica, Gray. 



Almost glabrous : stems branching, 2 feet high : branches 

 naked above and monocephalous : leaves lanceolate, on long 

 petioles, all opposite except occasionally a single one a little 

 below the head: akenes cuneate-obovate, slightly obcordate, 

 glabrous with traces of wings above, but wholly destitute of 

 pappus; terminal areola prominently elevated. — Pac. R. 

 Rep. IV. 103; also Bot. Cal. I. 352, and Syn. Fl. 285, as to 

 the Napa Valley plant with "pappus obsolete in age." 



Collected in the neighborhood of Napa by Bigelow; also 

 in Lake County by Cleveland in 1882, and by Mrs.Curran 

 in 1884. There is never any trace of pappus in even the 

 young fruit, and the akene is differently shaped from that of 

 the following. 



H. Nevadensis. 



Minutely scabrous-puberulent : stems simple, bearing at 

 summit about three short-peduncled heads : leaves lanceolate, 



