56 Festuceae 



or faintly scabrous, the first usually 5-nerved, 7-10 mm. long, the 

 second 7-nerved, 10-13 mm. long; flowering glumes broadly 

 lanceolate, acute, subcoriaceous, more or less scabrous, slightly 

 2-toothed at the apex, 13-16 mm. long; awn rarely exceeding 2 

 mm. in length; palea K~% the length of its glume. 



Occasional along streets and irrigating ditches about Los Angeles. 

 Fruitland. 



11. B. unioloides Haenkeanus (Presl) Shear. Smaller than 

 the type, 1.5-5 dm. high ; sheaths retrorsely pilose; leaves linear, 

 narrow, retrorsely pilose-pubescent on both sides ; panicle erect, 

 5-10 cm. long. 



Reported from Mentone, Leiberg. 



12. B. marginatus Nees. Perennial; culms 6-12 dm. high, 

 mostly puberulent to pubescent ; sheaths pilose-pubescent ; ligule 

 3-3.5 mm. long; leaves rather sparsely pilose-pubescent through- 

 out and scabrous, 1.5-2.5 dm. long, 6-12 mm. wide; panicle 

 erect, 1-2 dm. long, its lower branches 2-4, erect or spreading in 

 flower, unequal, the lowest about 7 cm. long and bearing 2 spike- 

 lets; spikelets 2.5-4 cm. long, 5-7 mm. wide, laterally compressed, 

 7-9-flowered, erect or ascending; empty glumes scabrous to 

 scabrous-pubescent, the first subacute, 3-5-nerved, 7-9 mm. long, 

 second 5-7-nerved, 9-11 mm. long; flowering glume coarsely 

 pubescent, acute, 11-14 mm. long, mostly 7-nerved, teeth very 

 short, subacute ; awn 4-7 mm. long; palea ciliate-pectinate on the 

 keels, equaling its glume or nearly so. 



Frequent in all our mountains in the pine belt and in the upper portions 

 of the chaparral belt on wooded slopes. 



13. B. carinatus H. & A. Annual or biennial; culm 5-8 dm. 

 high, slightly pubescent at the nodes; sheaths retrorsely soft 

 pilose ; ligule 3-4 mm. long ; leaves flat, mostly narrow, 1-2.5 dm. 

 long, 3-6 mm. wide, sparsely pilose on both sides; panicle rather 

 lax, 1-2.5 dm. long, lower branches 3, spreading or drooping; 

 spikelets compressed, 2.5-3 cm. long, 5 mm. broad, 5-9-flowered ; 

 empty glumes lanceolate, acute, glabrous to slightly scabrous- 

 pubescent, the first 3-5-nerved, 7-9 mm. long, second 5-7-nerved, 

 9-10 mm. long; flowering glume puberulent or short pubescent, 

 7-nerved, 13-16 mm. long, shortly 2-toothed at apex and tapering 

 into an awn 7-10 mm. long; palea nearly equaling its glume, 

 ciliate-pectinate on the keels. 



Rather common in grassy places in the lower hills and valleys. Verdugo 

 Hills ; Inglewood ; San Bernardino. 



