liyt'iiialiM, (Walt.) B. S. P. Rough Hair-grass. 

 Agrostis scabra. Willd. 



A rather uncommon grass from the Missouri river 

 eastward. 



inacouiiiana, Vasey. Macoun's Reed- 



grass. 



From the Missouri river eastward. 



Calamagrostis Caiiadensis, (Michx.) Beauv. Blue 

 Joint. 



Common in low places, from the Missouri river east- 

 ward. 



Calamagrostis breviseta, (Gray.) Scrib. Pickering's 

 Reed grass. 



Calamagrostis sylvatica breviseta. Gray. 

 In the Black Hills. 



coiifinis, (Wild.) Nutt. Bog Reed-grass. 

 In the Minnesota and Sioux valleys. 



Calamagrostis iieglecta, (Ehrn.) Gaertn. Narrow Reed- 

 grass. 



Calamagrostis stricta. Beauv. 

 In the Sioux valley, near Brookings. 



Calamagrostis Montanensis, Scrib. Montana Reed- 

 grass. 



Occasional in the Sioux and James valleys. 



Calamovilfa longifolia, (Hook.) Hack. Long-leaved 

 Reed-grass. 



Calamagrostis longifolia. Hook. 

 In dry soils throughout the state. 



Aveiia Striata, Michx. Purple Oats. 



In the Black Hills. 

 Avena fatua, L. Wild Oats. 



Introduced in the Minnesota and Sioux valleys. 

 Arrhenatliernm Elatius, (L.) Beauv. Oat-grass. 



Escaped from cultivation near Brookings. 



