1921] Smiley: Flora of the Sierra Nevada of California 101 



Zone. Transition and Canadian. 



Specimens examined. Prattville, Plumas County, Heller and 

 Kennedy 8790 ; Tamarack trail, Tahoe, meadow at 8,400 feet, Smiley 

 258; Lake of the Woods meadow, Tahoe, 8,200 feet, Smiley 65; 

 Tuolumne Meadows, 8,500 feet, Smiley 750; trail to Mt. Whitney, 

 9,000 feet, Culbertson (B4369). 



13. TRISETUM 



Awn included by the glumes or wanting 1. T. Brandegei 



Awn longer than the glumes and exserted. 



Sheaths and blades pubescent 2. T. spicatum 



Sheaths and blades glabrous 3. T. Congdoni 



1. Trisetum Brandegei Scribn., Bull. Torr. Bot. Club, vol. 10, 



p. 64. 1883. 



T. subspicatum var. muticum Bolander in Thurb., Bot. Calif., vol. 2, p. 

 296. 1880. 



T. Wolfii var. wmticum Scribn., Rhodora, vol. 8, p. 88. 1906. 



Type locality. "Cascade Mountains," Washington. Brandegee 

 and Tweedy. 



Range. Sierra Nevada and northward in the mountains of Oregon 

 and Washington. 



Zone. Canadian. 



Specimens examined. Between Suzy Lake and Glen Alpine, 7,400 

 feet, Smiley 190 ; Upper Tuolumne River, 7,500 feet, Bolander 5019 ; 

 Kings River, Brewer 2822a. 



2. Trisetum spicatum Richter, PL Eur., vol. 1, p. 59. 1890. 



Aira spicata L., Sp. PL, p. 64. 1753, not A. spicata L., op. tit., p. 63. 

 Trisetum subspicatum Beauv., Agrost., p. 88. 1812. Thurb., Bot. Calif., 

 vol. 2, p. 296. 1880. 



Type locality. "Habitat in Lapponiae alpibus. " 



Range. Nearly world-wide in distribution in high mountains. 



Zone. Canadian to Arctic-alpine. 



Specimens examined. Soda Springs, Nevada County, 7,000 feet, 

 Jones 2923; Silver Mountain, Brewer 2044; hill above Ebbett's Pass, 

 Brewer 2002, Summit White Chief Peak, Culbertson (B4439) ; Deso- 

 lation Valley, 8,700 feet, Smiley 338a ; Mt. Goddard, 11,000 feet, Hall 

 and Chandler, July, 1900; Mt. Gibbs, Yosemite, 10,800 feet, Smiley 

 769; Mt, Rose, Kennedy 986; base of Mt. Whitney, 12,500 feet, 

 Rothrock 390. 



