I30 



Sniilax liispida, Muhl. Hispid Greenbrier. 



In the southern part of the Sioux valley from Sioux 

 Falls southward and in the Southern Missouri valley to 

 Running Water. 



Amaryllidace^. — Amaryllis Family. 



Hypoxis liirsiita, (L.) Coville. Star-grass. 



Common on prairies in the Minnesota and Sioux 

 valleys. 



Iridace^. — The Iris Family. 



Iris Missouriensis, Nutt. Western Flag. 



In wet soils throughout the Black Hills. 



Sisyriiicliiuin augustitbliuiii, Mill. Pointed Blue-eyed 

 Grass. 



Common from the Missouri valley eastward and in the 

 Black Hills. 



Orchidace^, — The Orchid Family. 



Cyprepedium candidnni, (Willd.) Small White Ladies' 

 Slipper. 



In low, damp meadows in the Minnesota and Sioux 

 valleys. 



Cyprepediiiin hirsntnni, Mill. Large Yellow Ladies' 

 Slipper. 



In the deep, shaded ravines of the Minnesota valley. 



Cyprepediiiin parviflorum, Salisb. Small Yellow 

 Ladies' Slipper. 



In woods in the Minnesota valley and in the Black 

 Hills. 



Hal)eiiaria liyperborea, (L.) Tall Green Orchis. 



In bogs in the Little Missouri valley and in the Black 

 Hills. 



