FESTUCE^. 615 



Culms smooth erect branching below, 30-50 cm. high. Leaf- 

 blades flat, sparsely pubescent, 3-8 cm. long, 2 mm. wide. Panicle 

 simple, 8-18 cm. long, rays in half-whorls of 4, the lowest often 

 remote from those above. Spikelets 2-4-flowered, the racliilla 

 smooth, each joint 5 mm. long. Glumes rough, pubescent, 

 narrowly lanceolate, first 1-nerved, 8 mm. long, with a bristle 4 

 mm. long, second ovate-lanceolate, 3-5-nerved, 17 mm. long, with 

 a bristle 3 mm. long, the margins and space between the nerves 

 thin and pubescent; floral glume compressed, softly membranous,, 

 oval-lanceolate, 7-nerved, 10 mm. long to the bases of the awn, and 

 seta?, the latter 3-5 mm. long; palea pubescent on the keels, 10 

 mm. long. 



The following are some of the reasons for considering this a 

 species of Bromus and not Trisetum : the sheaths mostly closed, 

 florets of a large spikelet several to many, and large second empty 

 glume 5-ncrved; floral glume 7-nerved, grain plicate and adhering 

 to glume and palea. 



Guadaloupe Island, off Lower California, Palmer 99; California, 

 0. D. Allen, Orcutt. 



Oregon, California, and Chili. 



Var. sulcatus, T. harhatum major Yasey, ined. 



A rather stout grass, branching near the base, 60-70 or more 

 cm. high. Sheaths about the length of the internodes, mostly 

 closed, clothed with short pubescence; ligule obtuse, 1 mm. long; 

 blades flat, scabrous, 15-20 cm. long, 8-12 mm. wide. Panicle 

 ovate-lanceolate, 30 cm. long, rays in half-whorls of 5-7, the sets 

 5-9 cm. distant, the longest 10 cm. long, bearing about 5 spikelets 

 on the outer half. Spikelets somewhat compressed, 5-8-flowered,. 

 3-4 cm. long; empty glumes subequal, bristly-pointed, 1.5-2 cm,. 

 long; floral glumes scabrid-pubescent, compressed, 7-nerved, 10-14 

 mm. long to the base of 2 teeth, which are 4 mm. long; awn from 

 the notch between the teeth, irregularly twisted and bent, about 2 

 cm. long. Grain compressed, deeply grooved, adherent to floral 

 glume and palea. 



Mexico, Palmer 667. 



11. B. laciniatus n. sp. 



