144 CALIFORNIA ACADEMY OF SCIENCES. 



in rounded clumps, branching freely, 3-4 feet high. — 

 Todos Santos. 



To this species, rather than to the preceding, I think 

 Palmer's No. 17, from La Paz, should be referred. 



288. CouLTERELLA CAPITATA Rose. — Sand beach 

 near La Paz. 



289. BiGELOviA DIFFUSA (Benth.) San Jose del Cabo, 

 La Paz. 



290. Aster spinosus Benth. San Jose del Cabo. 



291. Aster exilis Ell. San Jose del Cabo. 



292. Aster sp. San Jose del Cabo. 



293. CoNYZA CouLTERi Gray. — Mountains of the 

 interior. 



294. Erigeron Canadensis L. San Jose del Cabo, 

 Sierra de la Laguna. 



295. Baccharis c^rulescens DC. — Proc. Am. 

 Acad., V, 160. 



296. Baccharis viminea DC. — San Jose del Cabo. 



297. Baccharis sp. Male flowers only, of an un- 

 identified species from the high mountains. 



298. Pluchea subdecurrens DC. — San Jose del 

 Cabo. 



299. Anaphalis margaritacea Benth. & Hook. — 

 Sierra de la Laguna. 



300. Gnaphalium leptophyllum DC. — Sierra de 

 la Laguna. 



301. Melampodium divaricatum DC. — San Jose 

 del Cabo, in fields. 



302. Melampodium sinuatum. Perennial, 2-4 dm. 

 high, with many branching stems from a somewhat woody 

 base, grayish rough -pubescent all over: leaves 3-4 cm. 

 long, elliptic-oblong, obtuse, narrowed but connate at base. 



