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 peretmis (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. BARBAKEA 



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 89 as growing in Harrison's Pass, in the high Southern 

 Sierra. 



