GRASS FAMILY 123 



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

 basal, miinerons. 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 2i/^ to 31/2 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, li/4 

 lines long. 



Humboldt Co. {Bolandcr G470. Davy 6602) and Mendocino Co. {Congdon), 



near the coast. 



Befs. — Calam.uirostis foliosa Kearn. tJ. S. Dept. Agr. Div. Agrost. Bull. 11: 17. 1898, 

 type Bolandcr 6-t70. C. sylvatica DC. var. longifolia Vasey, Coctr. 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: 2S'i. 1880). 



4. C. purpurascens R. Br. Culms eespitose, erect, li 4 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 neai'ly 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 sjDikelets, may be a 



distinct species. 



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

 Congdon, EcUcr 8396, Piper 6315. 



Refs. — C'ALAilAfiBOSTls PURPtJRASCENS R. Br.; Richards, Bot. App. Frankl. Jour. 731. 1823; 

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

 Wats. Bot. Cal. 2: 282. 1880. Var. pwinirascens Vasey, Contr. Nat. Herb. 3: S3. 1892, type 

 from Mt. Dana, Bolander 5071. 



5. 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. 



Jleadows and open woods in the high Sierra Nevada from Lake Tahoe to ilt. 

 "Wliitney ; extends throughout the northern part of North America. 



Locs.-^Mt. Tallac, Hitclieoel- 3129, McGregor 169; Hot Springs, Austin 1302; Silver Lake, 

 Davy; Yosemite Nat. Park, Eitchcoc]: 32.'52, 3282, Lemmon; Sequoia Nat. Park, Hitchcock 

 3372, 3429, 3445, 3465. 



Refs.— Calamagrostis canadensis Beauv. Ess. Agrost. 15. 1812; Thurb. in Wats. Bot. Cal. 

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



G. C. californica 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 ly^ to 2 lines long, scabrous, acuminate; lemma shorter than 

 the glumes, strongly nerved; callus hairs abundant, 1/2 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 U. as long as lemma. The only specimens known are 

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



Kef. — Calamaceostis californica Kearn. U. S. licpt. Aj;r. .Xgrost. Bull. U: 37. 1898. 



