1921] Smiley: Flora of the Sierra Nevada of California 97 



Type locality. — British America between Point Lake and the 

 Arctic Sea. 



Range. — Arctic America from Alaska to Greenland and south, in 

 the east to Quebec ; in the western mountains to the Black Hills, Colo- 

 rado, and California. 



Zone. — Hudsonian. 



Specimens examined. — Mt. Dana, 12,500 feet, Bolander 5071; foot 

 of Mt. Dana, Congdon, August 10, 1898. 



Specimens collected on Mt. Tamalpais, north of San Francisco 

 Bay, have been referred to this species provisionally (Hitchcock in 

 Jepson, I.e., p. 123). 



3. Calamagrostis canadensis Beauv., Agrost., p. 157. 1812. 



Arundo canadensis Michx., Fl. Bor. Am., vol. 1, p. 73. 1803. 



Type locality. — ' ' Hab. in Canada. ' ' 



Range. — Subarctic America south to California, Colorado, and 

 New Mexico in the west ; in the east southward to New England and 

 along the mountains to North Carolina. 



Zone. — Transition and above. 



Specimens examined. — Donner Lake, Torrey 559 ; cliffs at Glen 

 Alpine, Tahoe, 7,000 feet, McGregor 169; Angora Peak, 8,000 feet. 

 Smiley 312; Merced River, Hildebrand 2244; Yosemite, "up to 11,000 

 feet, ' ' Bolander 6087 ; Tuolumne meadows, Yosemite, 8,500 feet, 

 Smiley 740 ; 77 Corral, San Joaquin trail, Congdon, August 15, 1899, 



Some of the above specimens are not typical, e.g. Torrey 559, and 

 have been referred to the var. acwminaia Vasey {in Scribn., U. S. 

 Dept. Agri., Div. Agrost. Bull. 5, p. 26. 1897), which forms a 

 transition to the northern C. Langsdorfii Trin, 



4. Calamagrostis hyperborea Lange, Fl. Dan., vol. 50, pi. 3. 1880. 



Consp. Fl. Greenl., p. 160. 1880. 



C. robusta Vasey, in Eothrock, Eep. Wheeler Exped., vol. 6, p. 285. 1878, 

 not Muell. 



Type locality. — Igalico, near Julianshaab, southern Greenland. 



Range. — Arctic America south to California, New Mexico, Ver- 

 mont, Eastern Quebec and Newfoundland. 



Zone. — Hudsonian. 



Specimens examined. — Slope above Nellie Lake, Fresno County, 

 8,800 feet. Smiley 611 ; Kaweah meadows, Tulare County, 9,200 feet, 

 Purpus 5128; soda springs of the Tuolumne, Congdon, August 15, 

 1894. 



