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



ruinating the slender stems : involucre cylindric, 3 to 9-flowered. 

 nearly 5 mm. high, the accessory bracts oblong or lanceolate. 



Near Lancaster, Mohave Desert, Parish, no. 1177 (identical 

 with Nuttall's plants, ace. to note by Gray in Herb. Parish). 

 More common in the Sierra Nevada Mts., Utah, etc. 



9. A. Parishii Gray, Proc. Am. Acad. xvii. 220 (1885). 

 Plant distinctly shrubby, 6 to 9 dm. high: herbage densely 



and closely cinereous-pubescent: leaves 2 to 4 cm. long, linear- 

 spatulate, strongly 1-nerved, mostly entire but some of the lower 

 ones 2 or 3-toothed at apex, the margins revolute : heads inclined 

 to nod when mature, in small close glomerules which are scat- 

 tered on short branchlets of the rather loose oblong panicle: 

 involucre oblong, 5 to 7-flowered, 3 or 4 mm. long: achenes 

 arachnoid-villous. 



Newhall, Los Angeles Co., Nov., 1881, Parish, no. 1065 (dupli- 

 cate type) ; Mohave Desert, Oct. 19, 1882, Pringle; Rosamond, in 

 the creosote belt of Antelope Valley, Los Angeles Co., Oct., 1896. 

 Davy, no. 2933 ; all in the Lower Sonoran Zone. The report that 

 this species was collected at Cajon Pass is erroneous, ace. to 

 Parish. 57 



10. A. Palmeri Gray, Proc. Am. Acad. xi. 79 (1876). 

 Stems herbaceous or somewhat woody, slender and erect, tall. 



minutely pubescent: leaves (about 5 cm. long) almost glabrous 

 above, densely cottony-tomentose beneath, linear and entire or 

 mostly with few linear lobes, the margins closely revolute : heads 

 mostly nodding when mature, either glomerate or somewhat 

 loosely disposed on the branches of the elongated panicle: in- 

 volucre hemispheric, 3.5 mm. high : receptacle chaffy, its scarious 

 bracts subtending at least many of the flowers. 



From the vicinity of San Diego to Lower California: Jamul 

 Valley, Palmer, Miss Bird, ace. to Gray; near National City, 

 Purpus, Brandegee, etc. 



v. 120 (1901). 



