206 



Fig. L'OO. BOUTELOUA ramosa Scribn. in Vasey, U. S. Dept. Agr. Div. Bot. 

 Bui. 121 : 44. pi. kk. 1890. WIRY GRAMA.— An erect or ascending perennial, 

 with branching and many-jointed culms 3-4.5 dm (X°-\\°) high, short, narrow, 

 spreading leaves, and one to three spreading and more or less arcuate spikes 

 1-3 em. (\'-\k') long. Sheaths .smooth, striate, with few long hairs at the apex; 

 leaf-blades narrow, attenuate, 2-5 cm. (l'-2') long. Spikelets 4 mm. {2") long 

 with one perfect and one imperfect flower; empty glumes (a) smooth, acute, 

 the first less than one-half as long as the second which is about 4 mm. (2") 

 long; flowering glumes (6, h') exceeding 4 mm. (2") in length, lanceolate, 

 clothed on the back with long white hairs, 3-awned at the apex. Palea (c) 

 2-toothed, smooth. Rudiment id) consisting of three awns with two or three 

 imperfect glumes at their ba.«e on a short pedicel, which is densely tufted at the 

 apex.— In canyons, mountains of southwestern Texas. (Northern Mexico.) 

 August, September. 



