96' University of California Publications in Botany [Vol. 9 



feet, Smiley 96 ; Silver Lake, Amador County, 8,000 feet, Hansen 

 818 ; meadows near Black Mountain, Fresno County, 10,000 feet. Hall 

 and Chandler, 601a. 



5. AgTOStis Schiedeana Trin., Mem. Acad. St. Petersb., VI, vol. 4, 

 p. 327. 1840. 



A. nallii var. californica Vasey, Contr. Nat. Herb., vol. 3, p. 74. 1892. 

 A. elata Thurb., Bot. Cal., voL 2, p. 274 1880, not of Trin, 



Type locality. — "Mexico." 



Range. — British Columbia south to the high mountains of Central 

 Mexico. 



Zone. — Transition and Canadian. 



Specimen examined. — Glen Alpine, Tahoe, 6,800 feet, McGregor 33. 



8. CALAMAGROSTIS 



Awn long and strongly bent, exceeding the glumes; callus hairs short. 



Leaves involute-filiform: plant low (6-12 inches); panicle open. 1. C. Breweri 

 Leaves plane or involute; plant taller (1.5-2 feet); panicle dense, spike- 

 like 2. C. purpurascens 



Awn short and straight, little or not at all exceeding the glumes; callus hairs 

 mostly exceeding the lemma. 



Panicle open, spreading; leaf -blades flat 3. C. canadensis 



Panicle narrow or even spikelike; leaves flat or becoming involute 



4. C. hjrperborea 



1. Calamagrostis Breweri Thurb., Bot. Calif., vol. 2, p. 280. 1880. 



C. Lemmoni Kearney, U. S. Dept. Agri., Div. Agrost., Bull. 11, p. 16. 1898. 



Type locality. — "Near summit of Carson's Pass." Brewer 2128. 



Range. — Sierra Nevada. 



Zone. — Hudsonian mainly. 



Specimens examined. — Near summit of Carson's Pass, 8,000 feet. 

 Brewer 2128; above Donner Pass, 7,500 feet. Heller 7130; Lemmon 

 (without data), vicinity of Tuolumne meadows, 8,500-9,500 feet. Hall 

 and Babcock 3627 ; Upper Tuolumne River, 9,700 feet, Bolander 

 6898; mountain at Farewell Gap, Tulare County, 11-12,000 feet, 

 Purpus 5210. 



Lemmon 's specimen is the basis for C. Le^nmoni Kearney, but I 

 was unable to find a substantial difference in the material at hand. 



2. Calamagrostis purpurascens R. Br., in Richards. Bot. App. 



Frankl. Jour., p. 731. 1823. 



C. syJvatica A. Gray, Proc, Am. Acad., vol. 6, p; 80. 1868. Thurb., Bot. 



Calif., vol. 2, p. 282. 1880, not of DC. 

 C. sylvatioa var. americana Vasey, Contr. Nat. Herb., vol. 3, p. 83. 1892. 



