FLOWERING PLANTS AND FERNS OF ' INDIANA. 649 



HYSTRIX Moench. 



H. Hystrix (L.) Millsp. Hedge-hog Grass. 



(Asprella Hystrix Willd.) 

 A coarse grass found quite abundantly in moist, rocky woods. 

 Easily distinguished from Elymus by its very loose spike. 

 Flowers from June until in August. 

 Hamilton and Marion (Wilson); Steuben (Bradnen. 



ARUNDINARIA Michx. 



A. tecta (Walt.) Muhl. Small Cane. 



(A. macrosperma suffruticosa Munro.) 

 "Found in swamps in the southwestern counties, growing from 

 two to twenty-five feet high and with a stem diameter of from one to 

 three inches. The leaves furnish an abundant food supply for 

 cattle." (Troop.) 



Flowers in May and June. 



CYPERACE^E. Sedge Family. 



CYPERUS L. 



C. flave8Cens L. Yellow Cyperus. 



In low grounds or marshes. Reported only from the southern 

 counties, but probably of more general distribution. 

 Flowers August and September. 

 Jefferson. 



C. diandrus Torr. Low Cyperus. 



Common throughout the State in marshy places and in low, wet, 

 sandy soil. 



Flowers from August through October. 



Tippecanoe (Cunningham) ; Jefferson (Barnes) ; Putnam ( Mac- 

 Dougal) ; Hamilton (Wilson ) ; Vigo (Blatchley) ; Steuben I Brad- 

 ner). 



C. rivulaius Kunth. 



In wet soils about the margins of lakes and along the shores of 

 rather sluggish streams. Reported only from the northern part of 

 the State, though doubtless of wider distribution. It is probably 

 not separated from C. diandric*, which it closely resembles. 



Flowers in August and September. 



Round Lake (Deain). • 



