BOTANY. 231 



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



593. ELODEA Mx. Water-Weed. 



ELODEA CANADENSIS Mx. 



Occurring generally over the state. 



594. VALLISNERIA L. Tape Grass. Eel Grass. 



Vaelisneria spiralis L. 



Generally distributed over the state. 



CXXI. AUSMACE^E. Water Plantain Family. 



595. ALISMA L. Water Plantain. 



AXISMA PLANTAGO L. 



Common. 



596. SAGITTARTA L. Arrow-Head. 



Sagittaria heterophylla Ph. 



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



Sagittaria HETEROPHYLLA ANGUSTIFOLIA Englm. 

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



SaGGITTARIA HETEROPHYEEA ELLIPTICA. Englm. 



Painesville, Otto Hacker. 



Sagittaria heterophyeea rigida (Ph.) Morong. 



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

 Jones (Cat.) 



Sagittaria sagiTTaEFOEIa L. (S. variabilis Englm.) 

 Common and very variable. 



Sagittaria sagittaefolia angustifoeia (Englm.) Britt 

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



Sagittaria sagittaefoeia dfversifoeia Englm. 



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



Sagittaria sagittaefoeia gracilis (Pursh.) Englm. 

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



Sagittaria sagittaefolia latifoeia (Willd.) Britt 

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



Sagittaria sagittaefolia obtusa (Willd.) Britt. 

 Licking Co., H L Jones (Cat.) 



