176 GRAMINEAE 



16. B. laevipes Shear. Culms 2y 2 to 3 feet high, the base often decumbent 

 and rooting ; sheaths and blades glabrous ; panicle broad, lax, drooping, 6 to 

 8 inches long, the branches slender, drooping; glumes smooth, the first 

 3-nerved, 3 to 4 lines long, the second 5-nerved, 5 to 6 lines long; lemmas 

 obtuse, 7-nerved. 6 to 7 lines long, densely pubescent on the margin nearly to 

 the apex and on the back at the base ; awn 1% to 2% lines long. 



Moist woods and shady banks, in the Coast Ranges from Humboldt Co. to 

 San Diego ; in Shasta and Lassen cos., and in the middle Sierra Nevada ; 

 extends north to Washington. 



Refs. BROMUS LAEVIPES Shear, U. S. Dept. Agr. Div. Agrost. Bull. 23: 45. 1900; Davy in 

 Jepson, Fl. W. Mid. Cal. 71. 1901. B. richardsoni [Link, misapplied by] Abrams, Fl. Lou 

 Ang. 55. 1904. 



17. B. suksdorfii Vasey. Culms 2 to 3 feet high ; sheaths and blades smooth, 

 scattered; panicle narrow, erect, rather dense, 3 to 5 inches long, the branches 

 erect or ascending; spikelets about an inch long, longer than the pedicels; 

 glumes glabrous, the first 1-nerved, 4 to o lines long, the second 3-nerved, 5 to 

 6 lines long ; lemmas 6 to 7 lines long, appressed-pubescent near margin and on 

 the lower part of the midnerve. 



Rocky woods and slopes, California to Washington. 



Loes Donner Lake, Heller 7120; Mt. Tallac, Hitchcock 3131; Yosemite Nat. Park, Hitch- 

 cock 3303 ; Ebbetts Pass, Brewer 2088 ; Sequoia Nat. Park, Hitchcock 3365. 



Ref. BROMUS SUKSDORFII Vasey, Bot. Gaz. 10: 223. 1885. 



DIVISION III. Annuals or perennials; spikelets large, strongly flattened, usually 

 keeled; lemmas acuminate, usually awned. 



18. B. unioloides H.B.K. RESCUE GRASS. Annual ; culms 2 to 3 feet high ; 

 sheaths pilose ; blades narrow, very scabrous ; panicle open ; spikelets about an 

 inch long, 2 1 /2 to 4y 2 lines broad; glumes smooth, the first 5-nerved, 3% to 5 

 lines long, the second 7-nerved, 5 to 6 lines long; lemmas acute, subcoriaceous, 

 glabrous or scabrous, 6 to 8 lines long ; awn 1 line long or less ; palea % to % 

 as long as lemma. 



Native country not certainly known, but probably the Andes, now dis- 

 tributed from Chile to southern U. S. Cultivated as a meadow grass in the 

 Southern States under the name of Rescue Grass and Schrader's Brome Grass. 

 Introduced in California. 



Loes. Palo Alto, Congdon; Bishop, Heller 8251; Kern Co., Leckenby ; Pasadena, Hitchcock 

 2550; Fruitland, Abrams 1461; San Bernardino, Parish 4672; Mentone, Leiberg 3296. 



Refs. BROMUS UNIOLOIDES H.B.K. Nov. Gen. & Sp. 1: 151. 1816; Thurb. in Wats. Bot. 

 Cal. 2: 322. 1880; Abrams, Fl. Los Ang. 56. 1904. Var. haenkeanus Shear, U. S. Dept. Agr. 

 Div. Agrost. Bull. 23: 52. 1900; Abrams, Fl. Los Ang. 56. 1904. Ceratochloa haenkeana 

 Presl, Rel. Haenk. 1: 285. 1830. 



19. B. subvelutinus Shear. Perennial ; culms 1 to 2 feet high ; sheaths 

 canescent; blades narrow, rather rigid, becoming involute, canescent and also 

 pilose; panicle 2 to 4 inches long, narrow, erect, the branches short, erect; 

 spikelets about an inch long ; glumes puberulent, the first 3 to 5-nerved, 4 to 5 

 lines long, the second 7-nerved, 5 to 6 lines long; lemmas appressed-puberulent, 

 6 to 7 lines long; awn I 1 /*) to 2 lines long. 



Dry wooded hills and meadows. California to Oregon and Wyoming. 



Loes: Goosenest Mt., Butler 842; Warner Mts., Griffiths $ Hunter 399.; N. E. Shasta Co., 

 Hall $ Babcock 4196; Eureka, Davy; East Oakland, Davy; Templeton, Davy 7587; Ft. Te.jon, 

 Parish 1995; Mt. Pinos, Hall 6635; San Bernardino Mts., Hall 7601; Laguna, Schoenfeldt 

 3624. 



Ref. BROMUS SUBVELUTINUS Shear, U. S. Dept. Agr. Div. Agrost. Bull. 23: 52. 3900. 



