242 



Fig. 224. Cathestecum prostratum Presl (C. erectum Vasey 

 and Hack.); Beal, Grasses N.Am., 2 : 452. Ad extensively creep- 

 ing, slender perennial, with upright flowering branches 1 to 3 dm. 

 high, narrow, flat leaves, and clustered spikelets in terminal or 

 lateral racemes. Dry mesas and bluffs along the Rio Grande, 

 western Texas. [Mexico.] July-October. 



