AdHOSTIDE.E. 



315 



iniis with sliort liiiirs. Grain i)iirrow-ol)loug, iucludod, but not 

 adherent. 



Decumbent grasses witli nuiny cuhns or brandies, the culms 

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

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



Fio, 55. — Thiivheria Avkansana. A, spikelot; a, floret. (Scribiu-r.) 



Spiivelets few or numerous, glabrous, pubescent, not surrounded 

 with cilia. 



S))ecies 3, Xorth American. 



Bentham observes: '* 77/ ?/;7>r>vV/ was substituted for the names 

 proposed by Nuttall and Torrey, because both of them had been 

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



