FLOWERING PLANTS AND FERNS OF INDIANA. 



S. rigida Pursh. 



(S. heterophylla Pursb.) 

 Throughout the State in swamps aud shallow water. Varies 

 greatly in appearance in different situations. When growing in run- 

 ning water the petioles become ligid. 



Flowers from late in May through August. 

 Round Lake ( Deam ) ; Vigo (BlatchJey). 



S. graminea Michx. Grass-leaved Arrow-head. 



Throughout the State, growing in mud or shallow water. Abun- 

 dant in all stations from which it is reported. ' ; The early leaves 

 are often purplish." ( Britton and Brown). 



Flowers from July through September. 



Tippecanoe (Cunningham) ; Laporte (Barnes) ; Kosciusko (Coul- 

 ter). 



VALLISNERIACEiE. Tape-grass Family. 



PHILOTRIA Raf. 



P. Canadensis < Michx.) Britton. Water-weed. Ditch-moss. 

 (Elodea Canadensis Michx.) 

 Abundanily found in ponds and shallow waters in all parts of the 

 State. Extremely variable in our area. 

 Flowers from May until August. 



Laporte (Barnes) ; Noble ( Van Gorder) ; Gibson and Posey 

 (Schneck) ; Jay, Delaware, Randolph, and Wayne (Phinney) ; 

 Jefferson (J. M. Coulter) ; Putnam (MacDougal) ; Vigo (Blatchley) ; 

 Steuben ( Bradner ) ; Kosciusko aud Tippecanoe (Coulter . 



VALLISNERIA L. 



V. spiralis L. Tape-grass. Eel grass. 



Throughout the State in quiet waters of swamps and lakes. 

 Quite common in most of its stations. "The wild celery of Chesa- 

 peake Bay and a favorite food of ihe canvas-back duck" (Britton 

 aud Brown). 



Flowers in August and September. 



Jefferson (J. M. Coulter) ; Clark (Baird and Taylor) ; St. Joseph 

 (Barnes); Vigo (Blatchley) ; Steuben ( Bradner). 



GRAMINE.E. Grass Family. 



ANDROPOGON L. 



A. scoparius Michx. Brown Beard-grass. 



Common, especially northward, growing iu dry, rather sandy soil 



Flowers from July to September. 



Elkhart (Barnes) ; Vigo (Blatchley) ; Steuben (Bradner). 



