UNH LIBRARY 



3 ^tDDD DDhlfl Mfi7D 



ABSTRACT 



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

 wetland flora of New England. It treats all species of the Trapaceae, 

 Haloragaceae, and Hippuridaceae 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. 



KEY WORDS: Aquatic Plants, New England Flora, Taxonomy, Trapaceae, 

 Haloragaceae, Hippuridaceae, Trapa, Myriophyllum, Proserpinaca, Hippuris, Water 

 Chestnut, Water Milfoil, Mermaid Weed, Mare's-tail. 



