1907] Hall. Compositae of Southern California. 141 



sponds to the seashore forms of Chaenactis glabriuscula, Baeria 

 chrysostoma, etc. 



2. C. Bigelovii (Gray) Hall, comb. nov. Pugiopappus Bige- 

 lovii Gray, Pacif. R. Kept. iv. pt. 5, 104 (1857). P. Breweri 

 Gray, Proc. Am. Acad. viii. 660 (1873). Leptosyne Bigelovii 

 Gray, Syn. Fl. 1. pt. 2, 300 (1884). 



Stems several or numerous, from an annual root, 2 to 4 dm. 

 high except in depauperate specimens, commonly simple and 

 scape-like but often branching and leafy below : leaves 5 to 10 cm. 

 long, 2 to 3-parted into linear lobes : outer involucre of narrowly 

 linear loose bracts; inner involucre 8 to 10 mm. high, its bracts 

 broadly ovate, erect : rays 1 to 2 cm. long : ring of disk-corollas 

 beardless : ray-achenes with narrow callous-winged margin ; disk- 

 achenes oblong, the villous marginal hairs conspicuous: pappus- 

 paleae 2, broadly oblong, erose-margined, half as long as the 

 achene. 



Western portion of the Desert Area and warm places west of 

 the mountains in northern Los Angeles Co. and in Ventura and 

 Santa Barbara counties: Palm Springs, on the Colorado Desert, 

 and Morongo, on the Mohave Desert, north to Kern and Inyo 

 counties; particularly abundant on gravelly slopes around Ante- 

 lope Valley in Apr. and May ; the westernmost station is probably 

 Zaca Lake Forest Reserve, Santa Barbara Co., Miss Eastwood, 

 no. 585. Rays commonly deep yellow throughout but in speci- 

 mens from Elizabeth Lake they are intense yellow on the lower 

 half, pale yellow on the upper half, the difference being especially 

 noticeable in age when the upper portion fades to white. 



3. C. calliopsidea (DC.) Gray, Bot. Mex. Bound. 90 (1859). 

 Agarista calliopsidea DC., Prodr. v. 569 (1836). Leptosyne 

 calliopsidea Gray, Syn. Fl. i. pt. 2, 300 (1884). 



Branching and leafy below, 3 to 6 dm. high: bracts of the 

 outer involucre broadly ovate, conspicuously shorter than the 

 oblong-ovate inner ones: rays cuneate-obovate, commonly 2 cm. 

 long and 1 cm. wide, 15 to 20-nerved: ring of the disk-corolla 

 pubescent : achenes of the ray and outer disk-flowers oval, flat, 

 glabrous ; central achenes cuneate-oblong, long-villous on the mar- 

 gins and inner face : pappus-paleae 2, linear, nearly as long as the 

 achene. 



