23 



Fig. 5. Manisuris compressa (L. f. ) Kuntze (Bottboellia com- 

 prcssaL.f.; Hemarthriafasciculata Kunth). Mat-grass. — A creep- 

 ing perennial, with ascending and usually much branched, flat- 

 tened culms 10 to 14 dm. high, and numerous slender spikes. — 

 River banks, southwestern Texas. [Tropical and subtropical 

 regions of both hemispheres.] September. 



