1921] Smiley: Flora of the Sierra Nevada, of California 113 



Mr. K. K. Mackenzie considers our Californian plant to be 

 specifically distinct from C. filifolia Nutt. and has accordingly de- 

 scribed it as C. exserta (Bull. Torr. Bot. Club, vol. 42, p. 620. 1915), 

 an evaluation of its divergent characters in which I am unable to 

 concur. 



3. Carex Breweri Boott, 111. Car., vol. 4, p. 142, t. 455. 1867. 

 Type Zocai/i!/.—" California on Mount Shasta, 7,000-10,000 ft. in 



dry volcanic soil." Brewer 1422. 



Range. — Sierra Nevada and mountains of northern California, 

 north to Mt. Hood. 



Zone. — Arctic-alpine, rarely lower. 



Specimens examined. — Dick's Peak, Tahoe, just below summit, 

 10,000 feet, Smiley 434 ; Mt. Dana, Congdon, August 27, 1895 ; Eliza- 

 beth Lake meadow, Yosemite, 9,800 feet. Smiley 798 ; Sawtooth Peak, 

 12,000 feet, Hall and Babcock 5680 ; Mt. Dana, Bolander in 1866. 



4. Carex nigricans C. A. Meyer, Mem. Acad. St. Petersb., vol. 1, 



p. 210, t. 7. 1831. 



Type locality. — "Habitat in Unalaschka. " 



Range. — Alaska to California and Colorado. East Asia? 



Zone. — Hudsonian. 



Specimens examined. — Lake Lucile, Tahoe, 8,300, Hall and Chand- 

 ler 4664; Devil's Basin, Eldorado County, 8,300 feet, Brainerd, July 

 18, 1897 ; summit of Rush Creek Divide, east of Minarets, Mariposa 

 Countj^ Congdon, August 21, 1899. 



5. Carex simulata Mackenzie, Bull. Torr. Bot. Club, vol. 34, p. 



604. 1907. 



Type locality. — "Wyoming: Chug Creek, Albany County." A. 

 Nelson 7316. 



Range. — ^Washington to California, east to Montana and New 

 Mexico. 



Zone. — Canadian. 



Specimens exanmied. — Eldorado County, bogs near Echo Post- 

 office, 5,800 feet, Brainerd, July 12, 1897 ; east slope Sonora Pass, 

 8,000 feet. Brewer 1865. 



6. Carex vernacula Bailey, Bull. Torr. Bot. Club, vol. 20, p. 417. 



1893. 

 Type locality. — Not given. 



Range. — Washington to California and east to Utah, perhaps to 

 Colorado. 



