AGKOSTIDE.E. 



315 



mas with sliort luiirs. Grain luirrow-oblong, included, but not 

 adherent. 



Decumbent grasses witli numy culms or branches, the culms 

 sleiider, ascending or erect, with narrow flat leaf-blades. Panicle 

 terminal, narrow, elongated, with sliort slender erect branches. 



Fig. 55. — TAurberia Arkansana. A, spikelet; a, floret. (Scribner.) 



Spilvclets few or numerous, glabrous, pubescent, not surrounded 

 Avitli cilia. 



Species 2, Xorth American. 



Bentham observes: '* 7"// ?/;-&erm was substituted for the names 

 jiroposed by Xuttall and Torrey, because both of them had been 

 preoccupied. Tlie present name was for Dr. Geo. Thurber, an 



