GRASS FAMILY 177 



20. B. marginatus Nees. Short-lived perciuiiiil; culms rather stout, 2 to 4 

 feet high ; sheaths pilose; blades broad, flat, more or less pilose; panicle erect, 

 rather narrow, 4 to 8 inches long, the lower branches erect or somewhat spread- 

 ing; spikelets 1 to 11/^ inches long, 2}/-^ to Si/o lines wide, 7 or 8-flowered ; 

 glumes broad, scabrous, or scabrous-pubescent, the first subacute, 3 to 5-nerved, 

 31/2 to 41/2 lines long, the second obtuse, 5 to 7-nerved. 41/0 to Si^-o lines long; 

 lemmas subcoriaceous, coarsely pubescent, ovate-lanceolate, acute, S^/o to 7 lines 

 long; awn 2 to 31/0 lines long. 



Open ground, open woods, roadsides anil waste places. Riverside Co. to 

 British Coluiiibia. east to Alberta and Arizona. 



Var. seminudus Shear. Sheaths glabrous; plant often tall and stout with 

 large spreading panicle. — Woods or near streams, mostly from 3000 to 9000 feet 

 altitude. San Jacinto Mts. {Hall 785) north to British Columbia and east to 

 Assiniboia and Colorado. 



Refs. — Bromus marginatus Nees; Steud. Sj'n. PI. Glum. 1: 322. 1854; Davy in Jepson, 

 Ft. W. Mid. Cal. 72. 1901; Abrams, FI. Los Ang. 56. 1904. Cenitochloa breviarisUiia [Hook, 

 misapplied by] Thurb. in Wats. Bot. Cal. 2: 321. 1880. Var. seminudus Shear, V. S. Dept. 

 Agr. Div. .\groRt. Bull. 23: 55. 1900. 



21. B. maritimus Hitchc. u. comb. Differs from B. marginatus in having 

 smooth sheaths, scabrous but not pilose blades, and narrow, strict panicle, the 

 branches short and erect. 



.Xear the coast from Sonoma Co. to Monterey Co. 



Locs. — Bodega Pt., Eastu-ood; Pt. Reyes, Vary 67(50, 6798, 6844; San Francisco, Joiies 

 3270, Lemmon, Michencr 4' Bioletti; Monterey, Davy 7281; Little Sur, Davy 7406. 



Refs. — Bromus maritimus Hitclic. B. inariiiitatus Nees var. maritimus Piper, Proc. Biol. 

 Soc. Wash. 17: 148. 1905. 



22. B. carinatus TI. & A. Annual; culms 2 to 3 feet high; sheaths pilose; 

 l)ladt's nariMw. flat, more or less pilose; panicle pyramidal, rather lax. the 

 lower branches spreading or drooping; spikelets about an inch long. 2V-; lines 

 wide, 5 to 9-flowered ; glumes lanceolate, acute, glabrous or .slightly scabrous- 

 pul)eseent, the first 3-nerved, 31/2 to W2 ^mes long, the second 5-nerved, 41/2 to 

 •")!., lines long; lemmas lanceolate, puberulent or short-pidieseent. 6I/0 to 8 lines 

 long; awn 3^2 to ri lines long. 



Open ground, open woods, roadsides and waste places, throughout the state, 

 norlh to Washington. 



Var. californicus Shear. Sheaths smooth, si)ikelets narrower than in the 

 species. — Common in the Coast Ranges; infi'cquent in the Sierra Nevada and 

 San Beriuirdino ]\Its. 



Var. hookerianus Shear. Sheaths smooth ; spikelets as broad as in the spe- 

 cies.— Range aliDut as in the last, less common. 



Var. linearis Shear. Sheaths pubescent; blades very narrow, less than 1 line 

 wide; ]ianicle narrow, few-flowered. — Known only from California. P>crkeley 

 Hills, Davy 4245; above timber-line, Mt. Lyell. Hitchcock 3330. 



Refs.— Bromus carinatus H. & A. Bot. Beech. 403. 1841; Davy in Jepson, Fl. W. Mid. 

 Cal. 72. 1901 ; Abrams, Fl. Los Ang. 56. 1904. Var. californicus Shear, IT. S. Dept. Agr. 

 Div. Agrost. Bull. 23: 60. 1900. Var. hookerianus Shear, U. S. Dept. Agr. Div. Agrost. Bull. 

 23: 60. 1900. B. hookfriuiius Thurb. in Wilkes, V. S. Expl. E.xped. 17=: 493. 1874: Davy in 

 .Ippson, Fl. \V. Mid. Cal. ed. 2. 71. 1911. Ctnilorhloa (irandiflora Hook. Fl. Bor. Am. 2: 253. 

 1840; Thurb. in Wats. Bot. Cal. 2: 321. 1880. Var. line.\ris Shear, U. S. Dept. .Vgr. Div. 

 Agrost. Bull. 23: 61. 1900, type from California (without locality), G. R. Vasey in 1875 



