112 



Oryzopsis Jiiiicea, (Michx.) B. S. P. Slender Mountain 

 Rice. 



In the Black Hills. 



Muhlenbergia Mexicaua, (L.) Trin. Meadow Muhlen- 

 bergia. 



In woods and thickets in the Minnesota, Sioux and 

 James valleys. 



Muhlenbergia raceiiiosa, (Michx.) B. S. P. 



From the Missouri valley eastward and in the Black 

 Hills. 



Mulilenbergia aiiibigua, Torr. Minnesota Muhlen- 

 bergia. 



In the Minnesota region. 



Muhleiiberg'ia Sylvatica, Torr. Wood Muhlenbergia. 

 In the Minnesota, Sioux and James valleys. 



Muhlenbergia Wriglitii, Vasey. Wright's Muhlenbergia. 

 In the Black Hills. 



Brachyelytriiiii erectum, (Schred.) Beauv. Brachely- 

 trum. 



In the Minnesota and Sioux valleys and the Black 

 Hills. 



Phleuiii prateiise, L. Timothy. 



Escaped along streams and road sides in the^ Minne- 

 sota and Sioux valleys. 



Alopeeurus genieiilatiis, L. Marsh Fox-tail. 

 In the Sioux valley. 



Sporobolus asper, (Michx.) Kunth. Rough Rush-grass. 

 Abundant in the James and Missouri river valleys; 

 occasional throughout the state. 



Sporoboliis vagiii?pflorus, (Torr.) Vasey. Sheathed 

 Rush -grass. 



It occurs in the Sioux and the James river valleys; 

 rare. 



