BULLETIN. 



No. 4. 



California Academy of Sciences, 



STUDIES IN THE BOTANY OF CALIFORNIA AND PARTS 



ADJACENT. 



BY EDWARD LEE GREEXE. 



II. 



1. Three New Genera. 



BEBBIA, Helianthoidearum. 



Heads liomogamous, discoid. Involucre cainpanulate ; 

 bracts imbricated, appressed, striate. Receptacle chaffy 

 throughout; bracts lanceolate, partly embracing the akenes, 

 equaling those of the involucre, persistent. Corollas tubu- 

 lar, 5-toothed, deep yellow. Akenes turbinate, slightly ob- 

 compressed, the angles (2 lateral and 1 dorsal) obtuse. 

 Pappus a single series of long, slender, strongly plumose, 

 persistent awns or stout bristles. Much branched, suffru- 

 tescent plants of the dry southwestern districts, with few 

 and mostly opposite leaves, and scattered heads. Carphe- 

 phorus § Kuhniodes, Gray, Proc. Am. Acad. viii. 632; Bot. 

 Cal. i. 301, and Syn. FL ii. 113. 



The long, plumose awns or bristles of the pappus, and the 

 striate bracts of the involucre are the only characters 



[Issued August 29, 1885.] 



