(17 



Plate 20.— Classification: system Riverine, subsystem Lower Perennial, class Aquatic Bed, subclass Vascular, water 

 REGIME Permanently Flooded, water chemistry Fresh-Circumneutral, SOIL Organic, SPECIAL MODIFIER Excavated. The 

 dominant, plant is the white water lily Nymphaea odorata. This channel was dug by man in an unsuccessful attempt to drain 

 the wetland. Plants in the Palustrine wetland bordering the channel include sedge (Carex lasiocarpa), sweet gale {Myrica 

 gale), leatherleaf [Chamaedaphne calyculata), and Atlantic white cedar (Chamaecyparis thyoides). (Washington County, 

 Rhode Island; July 1977) 



