196 PROCEEDINGS OF THE AMERICAN ACADEMY 



BouTELOUA (Polyodon) Texana. Perennial, densely cespitose, 

 glabrous or loosely villous, the culms erect or geniculate at base, | to 

 1 foot high: leaves shorter than the culms, flat or revolute, some- 

 times pubescent on the upper surface : spikes 5 to 10, secund, cuneate, 

 about 6 lines long with the awns ; spikelets 4 to 6, crowded on the 

 very short rhachis : glumes short-villous or pubescent on the back, very 

 unequal, the lower bifid and the midnerve produced into an awn; 

 flowerinor orlume 3-awned and with a broad tooth on each side of the 

 middle awn ; sterile flowers 2 or 3, consisting of more or less similar 

 3-awned glumes. — Frequent from Arkansas to Western Texas (1535 

 Berlandier ; 340 and 374 Drummond ; 732 Lindheimer ; 752 Wright ; 

 771 Hall, distributed as B. offinis) ; collected also by Reverchon 

 and others. It appears to be the ^gopogon rigidlsetus of Steudel, 

 and is perhaps the " Atheropogon affinis, Fournier," mentioned by 

 Bentham. 



