11 



Fig. o. MANISURIS COMPRESSA . L. f. , O. Kuntze, Rev. Gen PI 2 • 779 

 1891. (BottbodUacompressaL.tSnp^l.UA. 1781; Hemarthnafascicidafa Kunth )' 

 MAT-GRASS.-A creeping perennial, with ascending and usually much 

 branched, flattened culms 10-14 dm. (3°-50) high, and numerous slender spikes 

 (a) 4-8 cm. (U'-S') long, often fasciculate above. Spikelets glabrous, G-7 mm. 

 (2i"-3") long; first glume (b) subcoriaceous, obtuse; .second glume (0) of the 

 pedicellate spikelet, acuminate-pointed; inner glumes (rf, e) much thinner than 

 the outer ones and obtuse.-River banks, southwestern Texas : tropical and 

 subtropical regions of both hemispheres. September. 



Highly esteemed for pasturage and said to remain green throughout the vear 

 in dry climates. 



