Hall Compositae of Southern California. 129 



achenes sparingly pilose, glabrate: principal pappus-paleae. 

 tapering into a slender awn shorter than the achene, obscurely 

 denticulate throughout, deciduous, the intermediate scales erose 

 or laciniate. 



Southwestern San Diego Co. and Lower California; common 

 back of San Diego. 



2. V. deltoidea Parishii (Greene) Rose, Contr. U. S. Nat. 

 Herb. i. 72 (1890). V. Parishii Greene, Bull. Torr. Club ix. 15 

 (1882). 



A compact twiggy shrub 3 to 5 dm. high : leaves ovate, acute, 

 short-petioled from the broad or truncate base, 1 to 3 (rarely 4) 

 cm. long including petiole, coarsely serrate or nearly entire : heads 

 on conspicuous nearly naked peduncles: involucre about 8 mm. 

 high; outer bracts cinereous with a close pubescence, linear- 

 lanceolate, loose ; inner bracts linear, erect : rays 1 to 1.5 cm. 

 long : aehenes villous : awns of the pappus very slender, as long 

 as the achene, obscurely chaffy at base, the intermediate scales 

 erose or laciniate. 



San Luis Rey Mission, western San Diego Co., Apr., 1881, 

 Parish, no. 963 (type) ; Vallecito, western San Diego Co., Parish, 

 no. 963 B; Mountain Spr. Grade, San Diego Co., Cleveland, no. 

 366; occasional on benches and in canons across the Colorado 

 Desert, various collectors ; Providence Mts., Mohave Desert, Bran- 

 degee; Lower California, Orcutt, Palmer, no. 250. 



V. RETICULATA Wats, has been collected only in Inyo Co. 

 Somewhat like V. deltoidea Parishii but leaves "entire, canescent 

 with soft appressed hairs above, prominently reticulated, and 

 loosely tomentose beneath, not scabrous in any part." 27 



47. HELIANTHUS L. SUNFLOWER. 



Stout coarse herbs with rough leaves, yellow mostly entire 

 rays, and brownish purplish or yellow disk. Leaves mostly alter- 

 nate but the lower or lowest commonly opposite. Heads middle- 

 sized or large, hemispheric, solitary on the ends of the branches 

 or in terminal cymes. Bracts of the involucre imbricated. Re- 

 ceptacle flat or convex, its bracts persistent and embracing the 



27 Coville, Contr. U. S. Nat. Herb. iv. 130 (1893). 



