332 ALISMACE^. [chap. 



113. Natural Order, AlisDiacece. — The Water-Plantain 

 Family. 



Aquatic plants. Perianth inferior, six-leaved, three innei 

 leaves petaloid. Pistil apocarpous. 



Type — Sagittaria cordifolia. 



Fig. 213. Sagittaria sagittcefolia, much reduced. 



