UNH LIBRARY 



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ABSTRACT 



This paper is the third in a series of reports on the aquatic and 

 wetland flora of New England. It treats all species of the Alismataceae 

 occurring in New England and includes keys, comments on taxonomy 

 and nomenclature, habitat and distributional information, water 

 chemistry data, illustrations, and dot maps. Those species regarded as 

 rare and endangered in the New England Region or in one or more of 

 the six New England states are also noted. One species, Echinodorus 

 parvulus, is believed extinct in our region. 



KEY WORDS: Aquatic plants, New England Flora, Taxonomy, Alismataceae, Alisma, 

 Echinodorus, Sagittaria, Water-plantain, Burhead, Arrowhead, Wapato, Duck-potato. 



