374 University of California Publications in Botany [VOL. 9 



12. Erigeron ursinus Eaton, in "Wats., Bot. King's Exped., p. 148. 

 1871. 



Type locality. "Uinta Mountains, on the ridge above Bear River 

 Canon ; 10,000 feet elevation. ' ' 



Range. Colorado and Wyoming west to California. 



Zone. Arctic-alpine. 



Specimens examined. Castle Peak near the highest point, 9,000 

 feet, Heller 7088 ; mountain at head of Squaw Valley, Placer County, 

 Sonne 8; Mt. Dana, 12,800 feet, Bolander 5083; same locality, near 

 the summit at 13,000 feet, Lemmon 1429; Mt. Gibbs, 12,000 feet, 

 Smiley 779; Cloud's Rest, summit, Chesnut and Drew, July 12, 1889;. 

 Mt. Lyell, 11,000 feet, Hall and Babcock 3573; Mt. Goddard, 11,500 

 feet, Hall and Chandler 704; Tuolumne County, 10,000 feet, Turner, 

 July 19, 1898; mountains near Kaweah meadows, Tulare County, 

 10-11,500 feet, Purpus 1801. 



Erigeron uniflorus L., a holarctic species alpine on the mountains 

 of Colorado and New Mexico and also in the Cascades of Washington, 

 is perhaps represented in the Sierra by a collection of Dr. Kellogg, 

 made in 1873 at 10,000 feet, ' ' On high peaks of the Sierra, ' ' probably 

 in the Tahoe region; the specimen lacks the definite character of 

 typical E. uniflorus, the copious black hairs on the involucre, and, in 

 my opinion, is more likely to be a peculiar state of the preceding 

 species. 



9. WYETHIA 



1. Wyethia mollis Gray, Proc. Am. Acad., vol. 6, p. 544. 1865. 



Type locality. "Mono Lake and summit of Sonora Pass in the 



Sierra Nevada. ' ' 



%^ 



Range. Central Sierra Nevada, especially on the eastern slope. 



Zone. Transition and locally in the Canadian. 



Specimens examined. Fallen Leaf Lake, in dry places, Miss 

 Lathrop, July 9, 1909; Donner Lake, Heller 6902; Caples Lakes, 

 Alpine County, 8,500 feet, Hansen 421; Sierra County, Lower Sar- 

 dine Lake, 6,000 feet, Hall and Babcock 4486 ; east slope of the Sierras, 

 Bolander 6024 ; vicinity of Lake Tenaya, 8,200 feet, Hall and Babcock 

 3543; Luther's Pass, Tahoe, 7,800 feet, Abrams 4764. 



Wyethia is a genus peculiar to the Cordilleran and Pacific region 

 of the United States, with fifteen species, seven of these being confined 

 to California. 



