374 University of California Puhlications in Botany [you 9 



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

 1871. 



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

 Caiion ; 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 smmnit 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 meadowTS, Tulare County, 

 10-11,500 feet, Purpus 1801. 



Erigeran 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 theSierra," 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. 



