Piper : Poa gracillima and its allies 



437 



Trask River, Hoivell \ 

 July 1 1, 1882, and Hi 



1880; without locality, Hotvcll 



This is certainly exceedingly close to Poa Midtnomae described 

 above, but the ligule character, which seems very constant In the 

 difficult western poas, together with the larger size, is relied upon 

 to distinguish it. 



From Poa actttiglwnis Scribn. it may be distinguished by its 

 more lax, larger panicles, larger leaves, smaller spikelets, and 

 different flowering glumes. 



Bureau of Plant Industry, 



United States Department of Agriculture. 



