BOTANY. 231 



CXX. Order HYDROCHARIDACE^. Frog's-bit Family. 

 593. ELODEA Mx. Water-Weed. 



EI.ODEA CANADENSIS Mx. 



Occurring generally over the state. 



' 594. VALLISNERIA L. Tape Grass. Eei, Grass. 



VAM,ISNERIA SPIRALIS L. 



Generally distributed over the state. 



CXXI. ALISMACE^. Water Plantain Family. 



595. ALISMA L. Water Plantain. 



Ausma plantago L. 

 Common. 



596. SAGITTARIA L. Arrow-Head. 



SAGITTARIA HETEROPHYU.A Ph. 



Painesville, Otto Hacker; Licking Co., H. L. Jones (Cat.) 



SAGITTARIA HETEROPHYIXA ANGUSTIFOIJA Englm. 



Licking Co., H. L. Jones (Cat.) 



Saggittaria heterophyiaa EIXIpTica Englm. 

 Painesville, Otto Hacker. 



SAGITTARIA HETEROFHYIAA RIGIDA (Ph.) Morong. 



Painesville, Otto Hacker; Lorain Co., A. A. Wright (Cat.); Licking Co., H. L. 

 Jones (Cat.) 



Sagittaria sagiTTaefoua L. (S. variabilis Englm.) 

 Common and very variable. 



Sagittaria sagittaefoma angustifoija (Englm.) Britt. 

 Licking Co., H. L. Jones (Cat.) 



Sagittaria sagittaefolia diversifoua Englm. 



Lorain Co., A. A. Wright (Cat); Franklin Co., Selby & Craig (Cat.) 



Sagittaria sagittaefova graciws (Pursh.) Englm. 

 Licking Co., H. L. Jones (Cat.) 



Sagittaria sagittaefolia i^aTifowa (Willd.) Britt. 

 Licking Co., H. L. Jones (Cat.) 



Sagittaria sagittaefolia obtusa (Willd.) Britt. 

 Licking Co., H, L. Jones ( Cat.) 



