124 



GRAMINEAE 



7. C. aleutica Bong. Culms stout, 3 to 5 feet high; blades flat, becoming 

 mrolled, elongated, gradually narrowed into a long involute point; panicle 

 narrow, rather loose, 6 to 12 inches long, the branches rather stiffly ascending ; 

 glumes 2^/2 to 3 lines long, acuminate ; lemma 2 lines long, indistinctly nerved, 

 the callus hairs l /2 as long; awn rather stout, attached below the middle, 

 slightly geniculate, extending to summit of lemma. 



Bogs and swamps, Monterey to Alaska, near the coast. 



Locs. Eequa, Davy <$ Blasdale 5919; Mendocino, Davy $ Blasdale 6089; Pt. Arena, 

 Davy <$ Blasdale 6012, 6020, 6055; Ft. Bragg, Davy # Blasdale 6123, 6133, 6155; Noyo 

 Biver, Davy 6576; Pt. Keyes, Davy 6702, 6785, 6817; San Francisco, Bolander 6084; San 

 Pedro, Elmer 4693, 5033, 5040, 5051 ; Pacific Grove, Davy 7510, 7534, Hitchcock 2617. 



Kefs. CALAMAGROSTIS ALEUTICA Bong. Mem. Acad. St. Petersb. VI. Math. Phys. Nat. 2: 

 171. 1832; Thurb. in Wats. Bot. Cal. 2: 282. 1880; Davy in Jepson, Fl. W. Mid. Cal. 46. 1901. 

 C. subflexuosa Kearn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 22. 1898, type from Oakland, 

 Bolander 2274; Davy in Jepson, Fl. W. Mid. Cal. 46. 1901. 



8. C. rubescens Buckl. Culms slender, 2 to 3 feet high, from creeping rhi- 

 zomes; sheaths smooth, but pubescent on the collar; blades flat or somewhat 

 involute ; panicle narrow, spike-like, pale or purple, 3 to 6 inches long ; glumes 

 2 to 2^/2 lines long, narrow, acuminate ; lemma pale and thin, about as long as 

 glumes, smooth, scarcely nerved, the callus hairs about % as long ; awn attached 

 near base, geniculate, exserted at side of glumes, the terminal portion about % 

 line long. 



Prairies and banks, Mendocino Co. (Pringle in 1882) to Santa Clara Co. 

 (Hitchcock 2659) and Santa Cruz (Anderson) north and east to British Colum- 

 bia and Manitoba. 



Kefs. CALAMAGROSTIS RUBESCENS Buckl. Proe. Acad. Phila. 1862: 92. 1863; Davy in 

 Jepson, Fl. W. Mid. Cal. 47. 1901. C. suksdorfii Scribn. Contr. Nat. Herb. 3: 82. 1892. C. 

 aleutica Bong. var. angusta Vasey, Contr. Nat. Herb. 3 : 80. 1892, type from Santa Cruz, 

 Anderson. C. angusta Kearn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 21. 1898, based on 

 the preceding; Davy in Jepson, Fl. W. Mid. Cal. 46. 1901. C. fasciculata Kearn. U. S. Dept. 

 Agr. Div. Agrost. Bull. 11: 23. 1898, type from plains of Mendoeino, Pringle; Davy in Jepson, 

 Fl. W. Mid. Cal. 47. 1901. 



9. C. crassiglumis Thurb. Culms rather stout, 6 inches to 1% feet high; 

 blades flat, or somewhat involute, smooth, firm, about 2 lines wide ; panicle nar- 

 row, spike-like, 1 to 2 inches long ; glumes 2 lines long, ovate, rather abruptly 

 acuminate, purple, scaberulous, firm or almost indurated ; lemma about as long 

 as glumes, broad, obtuse; callus hairs abundant, about 1% lines long; awn 

 attached at middle of back, straight, about as long as lemma; rudiment ^ 

 line long, the pilose hairs reaching to apex of lemma. 



Swampy soil, from Mendocino Co., the type locality and only known station 

 in the state, to Vancouver Island. 



Kef. CALAMAGROSTIS CRASSIGLUMIS Thurb. in Wats. Bot. Cal. 2: 281. 1880, type Bolander 

 4766 (and 4787). 



10. C. hyperborea Lange. Culms 1 to 2 feet high, producing stout rhizomes ; 

 sheaths smooth, the outer basal ones numerous, marcescent, persistent ; blades 

 loosely involute, scabrous, 1 to 2 lines wide ; panicle narrow, more or less spike- 

 like, 2 to 3 inches long; glumes 1% lines long, scaberulous; lemma about as 

 long as glumes, scabrous, the callus hairs % to % as long ; awn attached about 

 the middle, straight, about as long as glumes; rudiment y line long, some of 

 the pilose hairs reaching to tip of lemma. 



In mountain meadows of the high Sierra Nevada ; extends from arctic North 



