654 REPORT OF STATE GEOLOGIST. 



S. Smithii Gray. 



In muddy places at the borders of lakes and sluggish streams. 

 Reported only from the northern counties. 

 Flowers from July until in September. 

 Laporte. 



S. Americanus Pers. Chair-maker's Rush. 



(S. pungens Vahl ) 

 In all parts of the State in the shallower waters of ponds and lakes 

 and along their borders. 



Flowers from June until late in September. 



Noble (Van Gorder) ; Shriner Lake (Deam) ; Vigo (Blatchley) ; 



Hamilton (Wilson) ; Steuben (Bradner). 



S. Torreyi Olney. 



Found occasionally in swamps in the northern part of the State. 

 Not abundant in any of its stations. 

 Flowers from July until September. 

 Lake and Porter (Hill). 



S. lacustris L. Great Bulrush. Mat Rush. 



Throughout the State in ponds and swamps and sluggish streams. 

 Very abundant northward in the regions of the Kankakee marshes 

 and of the shallower inland lakes. 



Flowers from June until September. 



Tippecanoe (Cunningham) ; Noble (Van Gorder) ; Vermillion 

 (Wright) ; Putnam (MacDougal) ; Shriner Lake (Deam) ; Vigo 

 (Blatchley); Hamilton and Marion (Wilson) ; Steuben (Bradner). 



S. fluviatilis (Torr.) Gray. River Bulrush. 



Found in various parts of the State in the shallow waters along 

 the margins of streams and ponds. Usually abundant in its stations. 

 Flowers from June until late in September. 

 Vigo (Blatchley). 



S. atrovirens Muhl. Dark-green Bulrush. 



Throughout the State in swamps and low, wet meadows and 

 prairies. Abundant wherever found. 



Flowers from June until late in September. 



Tippecanoe (Cunningham ) ; Noble (Van Gorder) ; Shriner Lake 

 (Deam); Vigo (Blatchley); Hamilton and Marion (Wilson). 



