Sfi 



Plate 39.— Classification: SYSTEM Palustrine, class Emergent Wetland, subclass Persistent, water regime Permanently 

 Flooded, water chemistry Fresh, soil Unknown. The dominant plant is common cattail [Typha latifolia). This palustrine 

 emergent wetland borders a lacustrine system that is still ice covered. Note that the persistent vegetation remains standing. 

 (Knox County, Maine; April 1978) 



