1907] HallCompositae of Southern California. 249 



2. M. Douglasii (DC.) Gray, Proc. Am. Acad. ix. 209 (1874). 

 Calais Douglasii DC., Prodr. vii. 85 (1838). C. cyclocarpha 

 Gray, Pacif. R. Kept. iv. 113, t. 18 (1857). Microseris proxima 

 Greene, Pitt. v. 8 (1902). 



Scape usually 1.5 to 4 dm. high : leaves in the rosulate radical 

 cluster many, pinnatifid: involucres broadly ovoid, or in age 

 hemispheric, 1 to 1.5 cm. high : achenes oblong-turbinate, thickish. 

 contracted under the summit, about 5 mm. long, the outermost 

 usually white-villous : paleae of the pappus glabrous, or villous 

 externally, ovate to orbicular, the margins incurved, 3 or 4 mm. 

 long, imbricated or convolutely overlapping, abruptly contracted 

 into awns of about twice their length. 



A species chiefly of western middle California but collected in 

 meadows at Elizabeth Lake, Los Angeles Co., by Parish, no. 1902. 

 and also reported from this locality by Davidson ; Bimini Baths, 

 near Los Angeles, Miss Eastwood, no. 93 ; north slope of the Santa 

 Monica Mts., ace. to Abrams (under M. cyclocarpha) ; Santa Inez 

 Mts., Brandegee. It belongs to the Upper Sonoran Zone. 



3. M. platycarpha Gray, Proc. Am. Acad. ix. 210 (1874). 

 Calais platycarpha Gray, Pacif. R. Kept. iv. 113 (1857). Micro- 

 series breviseta Greene, Pitt. v. 8 (1902). 



Scapose peduncles 2 dm. or less high, several to numerous 

 from the dense rosette of oblong entire or pinnatifid radical 

 leaves: involucre about 1 cm. high, subcylindric when young, be- 

 coming obovoid or broadly turbinate as the achenes mature; its 

 outer bracts minute, ovate ; principal bracts oblong, merely acute : 

 achenes 4 or 5 mm. long, more or less narrowed at base, scabrous 

 on the prominent ribs and sometimes also pubescent or even vil- 

 lous, especially the outer: pappus-paleae dull white to smoky or 

 almost black, more or less pubescent, broadly ovate, with incurved 

 margins, convolutely overlapping, about as long as the achene, the 

 awn much shorter. 



Abundant on the mesas of western San Diego Co. and north- 

 ern Lower California in the Upper Sonoran Zone. 



Var. Parishii (Greene) Hall, comb. nov. M. Parishii Greene, 

 Bull. Calif. Acad. ii. 46 (1886). Achenes slender: pappus-paleae 

 lanceolate, 6 mm. long, attenuate into an awn 2 to 4 mm. long. 

 With the species. In the type of the variety (Parish, no. 955, 



