1907] Hall. Compositae of Southern California. 155 



Var. Parryi (Greene) Hall, comb. nov. Hemizonia Parry i 

 Greene, Bull. Torr. Club ix. 16 (1882). Centromadia pungens 

 Parryi Jepson, Fl. W. Mid. Calif. 532 (1901). Herbage usually 

 minutely glandular: bracts of the receptacle thin, villous on the 

 margin, obtuse or rarely acute but not at all pungent: sterile 

 disk-achenes with 3 to 5 linear or subulate paleae as long as the 

 corolla, these either smooth or with a few loose hairs. Near Los 

 Angeles and probably elsewhere toward the coast in Southern 

 California ; more common further north. 



12. H. Fitchii Gray, Pacif. R. Kept. iv. 109 (1857). Centro- 

 madia Fitchii Greene, Man. Bot. Reg. S. F. Bay 197 (1894). 

 FITCH'S SPIKEWEED. 



Diffusely branched, 2 to 9 dm. high : herbage dark, hirsute or 

 villous with spreading hairs, more or less beset with stalked 

 glands, .ill-scented: leaves of the radical tuft pinnately parted 

 into remote narrowly linear pungent lobes; cauline leaves linear 

 and entire, tapering into a subulate or pungent tip ; those about 

 the head spreading and star-like, exceeding the involucre : bracts 

 of the involucre subulate ; those of the receptacle pointless, soft, 

 hairy: ray-achenes flattened laterally, nearly semicircular in out- 

 line, smooth: ligules of the 25 to 40 ray-flowers small, bifid: 

 pappus of disk-achenes of 8 to 12 paleae as long as the corolla 

 and hairy or fimbriate at the tip. 



Quite abundant in a large wheat field on the Mohave River. 

 Parish, no. 1426. Probably introduced from the north where it 

 is more common. 



H. LUZULAEFOLIA DC. occurs in San Luis Obispo Co. and 

 possibly within our limits. Annual : leaves linear, entire, the 

 lower ones appressed-silky : receptacle chaffy throughout, its mar- 

 ginal bracts united : flowers white or pale yellow : pappus none. 



56. LAGOPHYLLA Nutt. 



Slender plants with mainly alternate entire leaves and rather 

 small heads in leafy-bracted clusters. Bracts of the involucre 

 about 5, thin-herbaceous; flat on the back, with margins at base 

 infolded and completely enclosing their achenes with which they 



