1907] Hall. Compositae of Southern California. 43 



10. CHRYSOPSIS Nutt. 



Perennial herbs, sometimes suffrutescent at base, with alter- 

 nate entire leaves and either discoid or radiate heads of yellow 

 flowers. Involucre campanulate to hemispheric, its bracts nar- 

 row and regularly imbricated. Style-appendages linear-filiform 

 to subulate. Achenes compressed or turgid. Pappus brownish 

 or ferruginous, of numerous capillary bristles with or without 

 an outer row of short bristles or squamellae. 



Kays present: pubescence hirsute or villous, canescent 1. C. villosa. 



Kays wanting: pubescence fine and soft, not canescent 2. C. Wrightii. 



1. C. villosa (Pursh.) Nutt., Gen. ii. 150 (1818). Amellus 

 villosus Pursh, Fl. ii. 564 (1814). 



Rigid, erect, 3 to 9 dm. high: herbage canescently strigose 

 or hirsute or hispid: spring leaves 3 to 5 cm. long, oblong, nar- 

 rowed to a margined petiole, early withering or deciduous; ra- 

 meal leaves rigidulous, oblong, closely sessile, acute, mostly 2 cm. 

 or less long: heads variously paniculate or cymose, often nearly 

 sessile, radiate : involucre about 8 mm. high ; bracts linear, acute, 

 hirsutulous or almost smooth: achenes oblong-ovate, villous. 



A northern species, represented in Southern California by 

 the following varieties : 



Var. echioides (Benth.) Gray, Syn. FL, i. pt. 2, 123 (1884). 

 C. echioides Benth., Bot. Sulph. 25 (1844). C. fastigiata Parish, 

 Eryth. vii. 97 (1899), not Greene. A branching form as orig- 

 inally described, but commonly simple-stemmed up to the in- 

 florescence : herbage canescently hispid : outer pappus con- 

 spicuous, white, squamellate ; the squamellae very narrow, toothed 

 at summit. The common form in Southern California, extending 

 north to the Sacramento Valley, plentiful in the Upper Sonoran 

 Zone, occasionally also in the neighboring zones : Ramona, San 

 Diego Co., Oct., 1903, Mrs. Brandegee; Witch Creek, San Diego 

 Co., 1893, Alderson, also no. 721; Murietta, Parish, no. 2245; 

 San Jacinto Mt., in the Transition Zone, Hall, no. 2607 ; Antelope 

 Valley, Hall, no. 6713 ; Mt. Pinos, Hall, no. 6700. 



Var. fastigiata (Greene) Hall, comb. nov. C. fastigiata 

 Greene, Pitt. iii. 296 (1898). Stems rather densely clothed (ex- 



