225 



Fig. 207. Bouteloua burkii Scribu. ; Beal, Grasses N. Am., 2 : 

 422. Burk's Grama. — A slender, tufted perennial 15 (rarely 30) 

 cm. high, with short, spreading leaves and slender, horizontal 

 spikes 1 to 2 cm. long. — Sandy plains and dry mesas, western 

 Texas. [Northern Mexico.] April-July. 

 11162— No. 7 15 



