CHLORIDE.E. 



427 



"wide as its glume ; floral glume of the second spikelet cuneate, about 

 5 mm. long, including 2 slender lobes, 3 stout setae extending beyond 



A" B 



Fig. IQ.—Bouteloua Texana. A, B, spikelets; a, floret. (Scribner.) 



for 5 mm, ; palea small, hyaline; floral glume of third floret smaller 

 than the one below and including a rudimentary palea and an 

 empty glume. 



Texas, Reverclion, Nealley; also found in Arkansas. 



91. (6). Beckmannia Host, Gram. Austr. 3:5, t. 6 (1805). 

 Joachimia Tenore, ex 11. & S. Syst. 2:695 (1817). Bruchmannia 

 Nutt. Gen. 1:48 (1818). 



Panicle terminal, long and narrow. Spikelets subsessile on 2 

 sides of asubtriangular rachis, articulate with the very short pedicels, 

 broad, compressed, 1-2-flowered; empty glumes 2, membranous, 

 compressed, concave-inflated, obtuse or abruptly pointed, 2 floral 

 glumes narrow, subequal, concave-keeled, acute or mucronate, deli- 

 cately membranous; palea hyaline, 2-keeled, nearly as long as its 

 glume. Stamens 3. Styles distinct. Grain oblong, included, but 

 not adherent. An erect srrass with flat blades havinof much tlie 



