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Plate 83.— Two habitats are shown here. Classification of the forested area: SYSTEM Palustrine, class Forested Wetland, SUBCLASS 

 Needle-leaved Deciduous, DOMINANCE type Taxodium distichum, water regime Permanently Flooded, WATER chemistry Fresh. 

 Classification of the open area: system Palustrine, CLASS Aquatic Bed, subclass Floating Vascular, dominance TYPE Pistia 

 stratiotes, water regime Permanently Flooded, WATER chemistry Fresh. Emergent plants growing in the bed of water lettuce 

 are arrowheads (Sagittaria spp.). (Corkscrew Swamp Sanctuary, Collier County, Florida; January 1978; Photo by E. T. LaRoe) 



