254 University of California Publications in Botany. [VOL. 3 



Herbage glabrous except for the more or less persistent to- 

 raentum of the foliage : peduncles 3 dm. or less long, either erect 

 or decumbent and radiating from the tuft of pinnately lobed 

 radical leaves : involucre 2 or 3 cm. high when fully mature ; its 

 bracts inclined to be edged with red toward their tips and the 

 exposed portion spotted with reddish dots. 



In dry sandy soil of the Desert Area and the surrounding 

 ranges from San Jacinto Mt, Rock Creek, and Mt. Pinos north ; 

 also as a waif at San Bernardino, Parish, Although most com- 

 mon in the Lower Sonoran Zone, this species ranges well up into 

 the Transition, reaching an altitude of 2450 m. on warm south 

 slopes in the San Antonio Mts. 



108. HYPOCHOERIS L. 



Stems naked, commonly branched and bearing several long- 

 peduncled heads. Leaves in a radical cluster or rosette. Flowers 

 yellow. Involucre campanulate or cylindric, its bracts rather 

 few, lanceolate, imbricated, appressed, the outer ones successively 

 shorter. Receptacle flat, its scarious chaffy bracts thin and nar- 

 row. Achenes upwardly scabrous, the body 10-ribbed, narrowly 

 oblong or fusiform, tapering upward into a slender beak, or the 

 outermost truncate. Some of the outer pappus-bristles often 

 short and not at all plumose. 



Herbage pubescent: achenes all beaked 1. H. radicata. 



Herbage glabrous: outermost achenes truncate, inner ones beaked 



2. H. gldbra. 



1. H. radicata L., Sp. PI. 810 (1753). GOSMORE. 



Stems 5 to 20 dm. high, several from a fleshy perennial root, 

 usually branching and bearing several peduncled heads : leaves 

 hispid with spreading hairs, pinnatifid below the large terminal 

 lobe into oblong obtuse lobes: rays longer than the involucre, 

 which is disposed to twist slightly after anthesis: achenes all 

 beaked. 



Reported by McClatchie as being introduced at Pasadena ; 

 streets of Redlands, Jun., 1907, Greata. 



