1921] Smiley: Flora of the Sierra Nevada of California 373 



include E. Tweedyi Canby (Bot. Gaz., vol. 13, p. 17. 1888) of Wyom- 

 ing and southern Montana, a species which seems entirely distinct 

 by its broader leaves, different kind of pubescence, and length of 

 peduncles. 



11. Erigeron nevadensis var. pygmaeus Gray, Proc. Am. Acad., 

 vol. 8, p. 649. 1873. 



E. pygmaeus Greene, Fl. Fran., p. 390. 1897. 



Type locality. " Above Ebbett's Pass and at Mono Pass, Cali- 

 fornia, alt. 9,500 to 10,750 feet, Brewer." 



Range. Sierra Nevada and mountains of western Nevada. 



Zone. Arctic-alpine, rarely lower. 



Specimens examined. Mt. Dyer, Plumas County, Mrs. Austin in 

 1879; Mt. Stanford (Castle Peak), 8,000 feet, Bolander, Kellogg and 

 Co. ; same locality, C. F. Sonne 17 ; same locality, 9,000 feet, Smiley 

 484 ; Bloody Canon, Mono County, Congdon, C 141, C 139 ; Mt. Dana, 

 Congdon, no. 46.1896; Mt. Warren Pass, Congdon, August 21, 1894; 

 Mt. Rose, 10,500 feet. Heller 9867; above Ebbett's Pass, 9,500 feet, 

 Brewer 2008; Mt. Dana, rockfield on the northwest side, 11,600 feet, 

 Smiley 725 ; same locality, 12,200 feet, Hall and Babcock 3614 ; high 

 summit on the range east of the Minarets, Mariposa County, Congdon, 

 August 24, 1899; Kaiser Crest, Fresno County, dry loose sand at 

 9,400 feet, Smiley 628; Siberian Pass, Hall and Babcock 5478; Mt. 

 Olancha, Tulare County, 11-12,000 feet, Purpus 3008 ; Old Mt. Whit- 

 ney, 12-13,000 feet, Purpus 1427, 1578. 



lla. Erigeron nevadensis var. Sonnei (Greene), comb. nov. 



E. Sonnei Greene, Pitt., vol. 1, p. 218. 1888. 



Type locality. "Western slope of the Washoe Mountains. Ne- 

 vada." 



Range. East slope of the central Sierra Nevada. 



Zone. Hudsonian. 



Specimens examined. Ward's Peak, Placer County, Sonne, July 

 29, 1888; Mt. Stanford (Castle Peak), high rocky ridges, Sonne 365; 

 Lucile Crest, Tahoe, 8,500 feet, M. S. Baker, July 19, 1904; ridge 

 between LeConte and Heather lakes, Tahoe, 8,800 feet, Smiley 343. 



The leaves in var. pygmaeus have cinereous pubescence and are 

 somewhat spatulate, while the foliage in the second variety has strigose 

 pubescence and the shape of the leaves is linear-acute. 



