408 [nuleae 



1. M. Californicus F. iV M. Slender, erect. 1-:: dm. high; 

 leaves mostly linear: fructiferous bracts 5-6, becoming firm-cori- 

 aceous, Bomewhal semicordate or semiobovate in outline, straight 

 anteriorly, the soon erect bract-like tip mostly scarious. 



Frequent on open hillsides in the Santa Monica Mountains and in the 

 foothills about Los Angeles. 



22. STYLOCLINE Nutt. 



Low and diffuse white-woolly annuals, with alternate 

 leaves and terminal subglobose heads. Bracts of the 

 involucre and of the receptacle deciduous with the 

 mature fruit, those of the fertile flowers involute or sac- 

 cate-conduplicate, embracing the obovate or oblong 

 obcompressed achene : those of the sterile (lowers plane 

 or concave. Pappus wanting in the fertile flowers, com- 

 posed of a few caducous bristles in the sterile ones. 



1. S. gnaphalioides Nutt. Stems 5-10 cm. long ; leaves linear 

 or the upper oblong, obtuse; fruiting bract hyaline, broadly ovate, 



woolly on the hack. 



Occasional in open ground, on wooded slopes, and in the chaparral belt. 

 April-June. 



23. PSILOCARPHUS Xutt. 



Small, usually depressed and much branched floccose 

 annual-, with opposite leaves and globose heads which 

 are sessile in the axils or at the forks. Fruiting bracts 

 numerous, crowded on the globular or oval receptacle, 

 cucullate-saccate, semiobovate or semiohcordate, rounded 

 at the tip. somewhat membranaceous, apex introrse, tin- 

 ovate or oblong hyaline appendage indexed or erect. 

 Achene loos,, within the bract, oblong or narrow, straight, 

 slighl ly compressed. 



1. P. globiferus Nutt. Branched from the base and spread- 

 ing or prostrate ; leaves linear or narrowly spat ulate, the upper- 

 most little surpassing the very woolly heads; achenes obovate- 



ohloni.', al'out 1 mm. long. 



Frequent on the plains and hills, especially In ex- located places April- 

 May 



