112 



Ory/opsis Jiiiicea, (Michx.) B. S. P. Slender Mountain 

 Rice. 



In the Black Hills. 



Muhleiibergia Mexicaiia, (L,.) Trin. Meadow Muhlen- 

 bergia. 



In woods and thickets in the Minnesota, Sioux and 

 James valleys. 



Muhleiibergia racemosa, (Michx.) B. S. P. 



From the Missouri valley eastward and in the Black 

 Hills. 



Muhleubergia ambigiia, Torr. Minnesota Muhlen- 

 bergia. 



In the Minnesota region. 



Muhleubergia Sylvatica, Torr. Wood Muhlenbergia. 

 In the Minnesota, Sioux and James valleys. 



Muhlenbergia Wrightii, Vasey. Wright's Muhlenbergia. 

 In the Black Hills. 



Brachyelytrum erectum, (Schred.) Beauv. Brachely- 

 trum. 



In the Minnesota and Sioux valleys and the Black 

 Hills. 



Phleum prateiise, L. Timothy. 



Escaped along streams and road sides in the'Minne- 

 sota and Sioux valleys. 



Alopecurus geniculatus, 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. 



Sporobolus vagiiiseflorus, (Torr.) Vasey. Sheathed 

 Rush -grass. 



It occurs in the Sioux and the James river valleys- 

 rare. 



