GRASS FAMILY 123 



3. C. foliosa Kearn. Culms cespitose, erect, 1 to 2 feet high ; leaves mostly 

 basal, numerous, the blades involute, firm, smooth, nearly as long as culm; 

 panicle dense, spike-like, 2 to 3 inches long; glumes 3 to 4 lines long, acumi- 

 nate; lemma 2% to 3y 2 lines long, acuminate, 4-nerved, the nerves ending in 

 setaceous teeth ; awn from near base, geniculate, about 4 lines long above the 

 bend; rudiment pilose, nearly as long as lemma; callus hairs numerous, l 1 /^ 

 lines long. . 



Humboldt Co. (Bolander 6470, Davy 6602) and Mendocino Co. (Congdon), 



near the coast. 



Refs. CALAMAGROSTIS FOLIOSA Kearn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 17. 1898, 

 type Bolander 6470. C. sylvatica DC. var. longifolia Vasey, Contr. Nat. Herb. 3 : 83. 1892 

 (not C. longifolia Hook.), type Bolander 6470. This is included under C. sylvatica by Thurber 

 (in Wats. Bot. Cal. 2: 282. 1880). 



4. C. purpurascens R. Br. Culms cespitose, erect, 1 y 2 to 2 feet high ; sheaths 

 scabrous; blades flat or more or less involute, scabrous; panicle dense, spike- 

 like, 2 to 5 inches long, pale or sometimes purple; glumes 3 to 4 lines long, 

 scabrous ; lemma nearly as long as glumes, 4-nerved, 4-awned at apex, the dor- 

 sal awn from near base, finally geniculate, exserted about 1 line. 



In mountain meadows and on rocks, chiefly of the high Sierra Nevada; 

 extends from arctic regions to California and Colorado. The Mt. Tamalpais 

 specimens, differing in having pale panicles and larger spikelets, may be a 

 distinct species. 



Locs. Mt. Dana, Congdon; Mt. Lyell, Hitchcock 3301; Mt. Tamalpais, Chase 5685, 5687, 

 Congdon, Heller 8396, Piper 6315. 



Refs. CALAMAGROSTIS PURPURASCENS R. Br. ; Richards, Bot. App. Frankl. Jour. 731. 1823; 

 Davy in Jepson, Fl. W. Mid. Cal. 45. 1901. C. sylvatica [DC. misapplied by] Thurb. in 

 Wats. Bot. Cal. 2 : 282. 1880. Var. purpurascens Vasey, Contr. Nat. Herb. 3 : 83. 1892, type 

 from Mt. Dana, Bolander 5071. 



.">. C, canadensis Beauv. Culms 2 to 4 feet tall, from creeping rhizomes; 

 blades scattered, flat, rather lax, scabrous, 2 to 4 lines wide ; panicle narrow but 

 loose, rather open, especially at base; glumes 2 lines long, smooth, scabrous on 

 keel, acuminate ; lemma nearly as long as glumes, smooth, narrowed toward 

 summit; callus hairs abundant, about as long as the lemma; awn delicate, 

 straight, attached just below the middle of the lemma and extending to or 

 slightly beyond its tip; rudiment delicate, sparsely long-pilose. 



Meadows and open woods in the high Sierra Nevada from Lake Tahoe to Mt. 

 AVhitney ; extends throughout the northern part of North America. 



Locs. Mt. Tallac, Hitchcock 3129, McGregor 169; Hot Springs, Austin 1302; Silver Lake, 

 Davy; Yosemite Nat. Park, Hitchcock 3252, 3282, Lemmon; Sequoia Nat. Park, Hitchcock 

 3372, 3429, 3445, 3465. 



Refs. CALAMAGROSTJS CAXADEXSIS Beauv. Ess. Agrost. 15. 1812; Thurb. in Wats. Bot. Cal. 

 2: 279. 1880. Arundo canadensis Miehx. Fl. Bor. Am. 1: 173. 1803. 



6. C. calif ornica Kearn. Culms 3 feet tall ; blades flat, firm, rather rigid, 2 

 lines wide,, those of the innovations involute; panicle 8 inches long, narrow, 

 loose; glumes IVo to 2 lines long, scabrous, acuminate; lemma shorter than 

 the glumes, strongly nerved ; callus hairs abundant, % as long as the lemma ; 

 awn delicate, straight, attached below the middle, extending to tip of lemma. 



A little-known species resembling C. canadensis but having more rigid firm 

 blades, and callus hairs only i/ 2 as long as lemma. The only specimens known are 

 those of the type collection, from "Sierra Nevada Mts.," Lemmon 444 in 1875. 



Ref. CALAMAGROSTIS CALIFORNICA Kearn. U. S. Dept. Agr. Agrost. Bull. 11: 37. 1898. 



