202 University of California Publications in Botany [Vol. 9 



2. Erysimum asperum var. perenne Wats., in Coville, Proc. Biol. 

 Soc. Wash., vol. 7, p. 70. 1892. 

 Cheiranthes perennis (Wats.) Greene, Pitt., vol. 3, p. 132. 1896. 



Type locality. — "Between Mineral King and Farewell Gap. Sierra 

 Nevada, Tulare County, California." 



Range. — Sierra Nevada north to central Idaho, 



Zone. — Canadian and above. 



Specimens examined. — Pyramid Peak, Tahoe, W. S. Atkinson in 

 1900; Heather Lake, Tahoe, 7,800 feet, McGregor 184; Mt. Tallac, 

 9,600 feet, Hall and Chandler 4618; Mt. Dana, 12,000 feet. Brewer 

 1749 ; Lake Tenaya, Yosemite, Brewer 1689 ; same locality, 8,100 feet, 

 Smiley 863; Angora Peak, Tahoe, 8,100 feet, Smiley 25; Cloud's Rest, 

 Yosemite, 9,000 feet. Hall 9051 ; near Nellie Lake, Fresno County, 

 8,500 feet. Smiley 596; Alta meadows, Tulare County, R. Hopping 

 146; midway between Mineral King and Farewell Gap, 9,000 feet. 

 Hall and Babcock 5393. 



The lemon colored flowers are the main reasons for maintaining 

 this variety distinct from the type ; the latter has the corolla orange 

 or even brownish in color and is not found in the mountains above 

 the Yellow Pine belt as a rule. 



5. BARB ARE A 



1. Barbarea orthoceras Ledeb., Fl. Ross., vol. 1, p. 114. 1841. 



Type locality. — Not ascertained. 



Range. — Subarctic America south to northern New England; in 

 the west from the Aleutian Islands to California and Colorado. 

 Siberia. 



Zone. — Hudsonian ? 



Specimens examined. — Lake Tenaya, Yosemite, 8,100 feet. Smiley 

 866; Mt. Goddard, 11,000 feet, Hall and Chandler, July 24-26, 1900; 

 Mt. Whitney, 11,800 feet, H. M. and G. R. Hall, 8436 ; along brooks, 

 Farewell Gap, Tulare County, 10,400 feet, Purpus 5241. I have not 

 seen Coville and Funston 1403, 1670, but they are quite certainly of 

 this species, as must be the case also of that plant referred to by 

 Miss Eastwood®^ as growing in Harrison's Pass, in the high Southern 

 Sierra. 



