656 REPORT OF STATE GEOLOGIST. 



HEMICARPHA Nees and Arn. 



H. micrantha (Vabl.) Britton. 



(H. subsquarrosa Nees.) 

 In moist, sandy places about the southern shores of Lake Michigan. 

 Not reported farther south. 



Flowering in July and August. 

 Porter (Hill). 



RYNCHOSPORA Vahl. 



R. corniculata (Lam.) Gray. Horned-rush. 



In marshes and low, wet open places in the southern counties of 

 the State. Sparingly found. 

 Flowers in July and August. 

 Floyd (Clapp). 



R. alba (L.) Vahl. White Beaked-rush. 



In marshes and swamps ; reported only from the northern counties 

 of the State. 



Flowers in June and August. 

 Noble (Barnes) ; Steuben (Bradner). 



R. C A PILL ACE A LAEVISETA E. J. Hill. 



Reported only from the northern counties in bogs and low, wet 

 grounds. 



Flowers in July and August. 

 Lake (Hill). Vahl. 



R. glomerata (L.) Vahl. 



In moist soils in the northern counties of the State. Of frequent 

 occurrence in the regions in which it is found. 

 Flowers from July through September. 

 Laporte (Barnes) ; Round Lake (Deam). 



R. CYMOSA Ell. 



In wet soils and about the margins of lakes, in the northern coun- 

 ties of the State. 



Flowers from June through August. 

 Lake (Hill). 



