"7 

 Poa trivialis, L. Rough Meadow-grass. 



Sparingly introduced in the vicinity of Brookiugs. 



Poa flava, L. False Red- top. 



In swampy places in the extreme eastern part of the 

 state; the Sioux and Little Minnesota valleys. 



Poa iiemoralis, L. Wood Meadow-grass. 



On moist banks in the Sioux and James river valleys 

 and in the Black Hills. 



Poa debilis, Torr. Weak Spear-grass. 



In wooded ravines in the Minnesota valley. 



Poa alsodes, Gray. Grove Meadow-grass. 



In damp woods in the Little Minnesota valley and in 

 the Black Hills. 



Poa arid a, Vasey. Prairie Spear-grass. 

 In the Sioux and James valleys. 



Poa alpiiia, L. Alpina Spear-grass. 



Near Hot Springs, in the Black Hills. 



Poa Buckleyaiia, Nash. Buckley's Spear-grass. 

 In dry soils near Hot Springs. 



Poa Irevis, Vasey. Smooth Poa. 



Extends from the Missouri valley to the Black Hills. 



Poaffeiiclleriana, (Steud.) Vasey. Fendler's Poa. 

 In the Black Hills. 



Poa iievedeiisis, Vasey. Nevada Poa. 

 In the Black Hills. 



Poa aniiua, L. Annual Meadow-grass. 

 Elk Canon, in the Black Hills. 



Paiiicularia iiervata, (Willd.) Knutze. Nerved Manna- 

 grass. 

 Glyceria nervata. Trin. 



In the Sioux and Little Minnesota valleys, and in the 

 Black Hills. 



