108 University of California Publications in Botany. L V L - 3 



also collected in the typical form at Palm Canon and to be ex- 

 pected elsewhere in the Desert Area, since it occurs in Utah. 



2. F. depressa Gray, Proc. Am. Acad. xix. 3 (1883). 



Plant branching from the base, the short branches depressed 

 and spreading, or ascending, 1 dm. or less high (depauperate 

 plants sometimes simple-stemmed and erect) : leaves as in F. 

 Calif ornica but smaller : heads about 3 mm. high, borne in small 

 clusters which nearly equal or exceed the shortened upper in- 

 ternodes and are surrounded by short and obtuse bracts of the 

 inflorescence: marginal pistillate flowers 5 or 6, their woolly 

 enclosing bracts nearly straight: marginal achenes obovate, 

 smooth and shining; inner achenes oblong or fusiform, smooth. 



The type locality is Palm Springs, Colorado Desert, where 

 first collected by Parry, ace. to Gray, then by Parish; and 

 Wright's no. 1819, labeled merely "in damp places, Colorado 

 Desert," was probably gathered here; Colorado Desert in Im- 

 perial Co., Brandegee. I have collected the species in Marshall 

 Canon (no. 5801) and near the Pinto Mts. (no. 6021), both on 

 the Colorado Desert, and near Daggett (no. 6150), on the Mohave 

 Desert, whence it ranges north to Keeler, Inyo Co. (Brandegee). 

 It nearly always grows in dry sandy soil and appears to be 

 restricted to the Lower Sonoran Zone. 



3. F. Arizonica Gray, Proc. Am. Acad. viii. 652 (1873). 

 Plant diffuse or at first erect, with widely spreading branches : 



leaves short, linear, the upper ones involucrate around and much 

 exceeding the glomerules, which are widely separated by the elon- 

 gated filiform internodes: marginal pistillate flowers 10 to 15; 

 their bracts of firm texture, ovate, open on the face : ' ' achenes 

 clavate-oblong and arcuate, very smooth." 



Mohave Desert, Mrs. Brandegee; Santa Catalina Island, ace. 

 to Lyon, 21 Mrs. Trask; San Diego Co. and south, ace. to Gray; 

 Arizona. 



33. ANTENNARIA Gaertn. 



Low woolly perennial herbs. Leaves mostly in crowded basal 

 tufts, the cauline ones alternate and sessile. Heads dioecious, 

 many-flowered, solitary or terminally cymose (paniculate in one 



21 Bot. Gaz. xi. 333 (1886). 



