Fescue Tribe 55 



acute, 5-nerved, scabrous or appressed scabrous-pubescent, teeth 

 4-5 mm. long; awn 18-21 mm. long; palea long ciliate-pectinate 

 on the keels. 



Common in sandy soils along the coast and in our interior valleys. Port 

 Ballona; Fullerton; Capistrano; San Bernardino. 



*- -*-Awns less than 1 cm. long. 



8. B. Richardson! Link. Perennial; culms 6-13 dm. high, 

 smooth ; sheaths smooth below or sparsely pilose, pilose at the 

 throat; ligule 1-2 mm. long; leaves linear-lanceolate, 15-25 cm. 

 long, 5-12 mm. wide, usually scabrous above and glabrous be- 

 neath ; panicle drooping, 15-25 cm. long; spikelets drooping, 

 terete, acu-minate, becoming oblong-lanceolate and compressed, 

 2-3 cm. long, 6-11-flowered; empty glumes smooth, the first acut- 

 ish, 8-10 mm. long, the second 9-12 mm. long; flowering glume 

 obtuse, 7-nerved, 12-15 mm. long, appressed ciliate-pubescent 

 nearly to the apex; awn straight, 3-5 mm. long; palea slightly 

 shorter than its glume. 



Frequent on wooded slopes and in canyons in all our mountains and foot- 

 hills. 



9. B. Orcuttianus Vasey. Perennial; culms erect, 8-12 dm. 

 high, puberulent near the nodes, leafy below; sheaths glabrous 

 or sparingly pilose-pubescent; ligule 1-2 mm. long; leaves smooth, 

 broadly linear-lanceolate, 1-2 dm. long, 5-7 mm. wide; panicle 

 erect or nearly so, 10-15 cm. long, its branches few, widely divar- 

 icate in fruit and rather rigid; spikelets 2-2.5 cm. long, 2-3 mm. 

 broad, on short, stout pedicels, terete, acuminate, 5-9-flowered; 

 empty glumes smooth or scabrous, the first acute, 6-8 mm. long; 

 the second broader, obtuse, 3-nerved, 8-10 mm. long; flowering 

 glume 10-12 mm. long, obtuse, scabrous to scabrous-pubescent, 

 5-7-nerved, apex emarginate; awn about 5-7 mm. long; palea 

 about equaling its glume. 



Occasional in the San Gabriel and San Bernardino Mountains, in the* 

 upper altitudes of the chaparral belt. 



10. B. unioloides (Willd.) 'H. B. K. Annual ; culms 5-10 

 dm. high, smooth; sheaths usually pilose-pubescent, sometimes 

 smooth; ligule 3-4 mm. long; leaves linear, scabrous on both 

 sides or sparingly pilose-pubescent; panicle erect or nearly so, 

 1.5-3.5 dm. long, its lower branches 2-4, short or on larger plants 

 spreading or somewhat drooping; spikelets 2-3.5 cm. long, 5-9 

 mm. broad, 7-11-flowered ; empty glumes broad, subacute, smooth 



