Chicory Tribe 445 



palese ovate, scarcely 1 mm. long; bristles 6-8 mm. long, slender, 

 fragile or deciduous. 



Near Santa Monica, Davidson. 



2. M. cyclocarpha Gray. Scapes 2-4 dm. high ; leaves nar- 

 row, 1-2 dm. long; heads about 10 mm. broad; achenes oblong- 

 turbinate, 5 mm. long, the outer ones white-villous ; palea of the 

 pappus ovate, 2-3 mm. long, about half the length of the slender 

 persistent bristles. 



Occasional in open grassy places on the north slope of the Santa Monica 

 Mountains. 



70. UROPAPPUS Nutt. 



Nearly acaulescent annuals with pinnatifid or entire 

 leaves and solitary heads on scape-like peduncles. 

 Heads erect, oblong. Involueral bracts about equal, 

 with shorter ones at the base, all membranous. Ligules 

 short, yellow. Achenes 10-12-ribbed. Pappus-paleae 5, 

 elongated, tipped with a very short awn or bristle which 

 proceeds from the cleft summit. 



1. U. linearifolius (DC.) Nutt. Stems or peduncles usually 

 several from the base, erect, 2-4 dm. high, in robust plants thick- 

 ened and fistulose under the oblong head ; leaves linear, 7-15 cm. 

 long; 2-4 mm. wide, with 2-several pairs of more or less serrate 

 salient attenuate lobes; achenes attenuate above into a beak, 10 

 mm. long; pappus silvery-white, 12-14 mm. long; the awn deli- 

 cate, about half the length of the deeply notched palea. 



Common on grassy hillsides in the foothills. March-May. 



2. U. Lindleyi (DC.) Nutt. Stout, 2-4 dm. high; peduncles 

 scarcely thickened under the head ; leaves as in the last or some- 

 what broader; achenes brownish, 10 mm. long, slightly narrowed 

 above; pappus dull brown or sordid, 12-14 mm. long; awn nearly 

 equaling the palese, from a very shallow notch. 



Same range as the last, but not common. 



71. HYPOCHAERIS L. 



Mostly perennial herbs, with scapose, often branched 

 stems, mostly basal tufted leaves pinnatifid or entire, 



