242 



l^^ 



Fig. 224. Cathestecum prcstratum Presl (C (rectum Vasey 

 and Hack.) ; Heal, Grasses N. Am., 2 : 452. — Au extensively fTeep- 

 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 blutVs 

 western Texas. [Mexico.] July-October. 



along the Rio Grande, 



