^58 



Priimis Virgiiiiaiia, L. Choke Cherry. 



Along streams and lakes throughout the state. 



Pruiius (leniissa, (Nutt.) Walp. Western Wild Cherry. 

 Along streams from the Missouri valley westward. 



Primus serotiiia, Ehrh. Black Cherry. 



Rare in the Minnesota and Sioux valleys. 



MiMOSACE^. — Mimosa Family. 



Acuaii lUiiioensis, (Michx.) Kuntze. 

 DesmantJms brachylobiis^ Benth . 



On sandy or rocky banks of streams and lakes; occa- 

 sional in the Minnesota, Sioux and James valleys. 



Moroiig-ia unciiiata, (Willd.) Britton. Sensitive-brier. 

 Schrankia icncinaia^ Willd. 



In dry soil from the Missouri valley westward. 



C^SALPiNACE^. — Senna Family. 



Cercis Canadensis, ly. Red -bud. 



This species is reported by Engelman to be found at 

 the mouth of the Sioux river. It has not yet been col- 

 lected there or elsewhere in the state. If it reaches our 

 southeastern limit it must be quite rare. 



Cassia clianirpcrista, L. Sensitive Pea. 



In the southern part of the Sioux and James valleys, 

 near Sioux Falls, Elk Point and Yankton. 



(xleditsia triacanthos, L. Sweet Locust. 



Along the Sioux river in the extreme southeastern 

 county, Union county. 



Oyninocladus dioica, (L ) Koch. Kentucky Coffee-tree. 

 Along the Missouri river in the two southeastern 

 counties, Clay and Union. 



Papiluonace^. — Pea Family. 



Sopliora serieea, Nutt. Silky Sophora. 



On prairies from the Missouri valley westward. 



