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CYPERACE^. The Sedge Family. 



Cyperus iiiflexus, Muhl. Awned Cyperus. 

 Cyperus Anstatus, of Manuals. 

 In damp sandy soil from the Missouri river eastward. 



Cyperus Schvveiiiitzii, Torr. Schweinitz Cyperus. 



In low, moist ground from the Missouri valley eastward. 



Cyperus acumiuatus, Torr. & Hook. Short-pointed 

 Cyperus. 



In wet meadows throughout the state. 



Cyperus erythrorhizos, Muhl. Red-rooted Cyperus. 

 In the Sioux and James valleys. 



Cyperus strigosus, L. Straw-colored Cyperus. 



In wet meadows in the little Minnesota valley. 



Cyperus ovularis, (Michx.) Torr. Globose Cyperus. 

 In the Sioux and Little Minnesota valleys. ; 



Eleocharis Eiiglemaimi. Steud. Englemann's Spike- 

 rush. 



In wet soil from the Missouri valley eastward. There 

 are several specimens in the College herbarium labelled- 

 E. Ovata. The plants all have the pointed spike, the 

 low broad tubercle covering the top of the achene and 

 the short bristles of E. Englemanni. 



Eleocharis palustris, (L.) R. & S. Creeping Spike- 

 rush. 



In swamps and ponds in the Black Hills, James, Sioux 

 and Little Minnesota valleys; and in the southern part 

 of the Missouri valley. 



Eleocharis acicularis, (L.) R. & S. Needle Spike-rush. 



In wet soils from the Missouri valley eastward and 

 probably throughout the state. 



Eleocharis acumiuata, (Muhl.) Nees. Flat-stemmed 

 Spike-rush. 



In the Black Hills near Hot Springs. 



