624 REPORT OF STATE GEOLOGIST. 



ALISMACE^E. Water Plantain Family. 



ALISMA L. 



A. Plantago-aquatica L. Water Plantain. 



(A. Plantago L.) 

 Found throughout the State in shallow waters and in mud, 

 usually very plentiful in the stations in which it oceurs. 

 Flowers from June until September. 



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

 Dougal) ; Fayette (Hessler) ; Vigo (Blatchley) ; Hamilton and 

 Marion (Wilson) ; Steuben (Bradner) ; Kosciusko (Coulter). 



ECHIXODORUS'Rich. 



E. cordifolius (L.) Griseb. Upright Bur-head. 

 (E. rostratus Engelm.) 

 Reported only from the southern part of the State and probably 

 not extending far northward, as the species is southern in its mass 

 distribution. It was first reported by W. S. Blatchley in 1889, as 

 growing abundantly in mud flats on the borders of a pond. 

 Flowers in June and July. 

 Vigo (Blatchley). 



SAGITTARIA L. 



8. Engelmanniana J. G. Smith. 



(S. variabilis gracilis Engelm.) 



Common, especially in the central part of the State in shallow 

 water and along the wet shores of sluggi-h streams. 



Flowers in August and September. 



Putnam (MacDougal) ; Fayette (Hessler) ; Hamilton (Wilson) ; 

 Decatur (Ballard). 



S. latj folia Willd. Broad-leaved Arrow-head. 

 (S. variabilis Engelm.) 

 Common in the shallow waters of ponds and ditches, extending 

 often far out on low muddy banks. 

 Flowers in July and August. 



Tippecanoe (Cunningham) ; Daviess (Clements) ; Vigo (Blatch- 

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



S. latifolia pubescens (Muhl.) J. G. Smith. 



(#. variabilis pubescens Engelm.) 

 In similar situations as the preceding,- but less common aud less 

 widely distributed. 



Flowers in July and August. 

 Hamilton and Marion (Wilson). 



