dominant vegetation 'of which comprises pickerel weed

(Pontederia lanceolata), maidencane (Panicum hemitomom),

arrowhead (Sagittaria lancifolia), and cordgrass (Spartina

bakerii); cypress strands, dominated by baldcypress

(Taxodium distichum); swamp hammocks, in which grow pond

apple (Annona ,labra), water ash (Fraxinus caroliniana),

and red maple (Acer rubrum); wet pairies, dominated by

short sedges and grasses, different species predominating

on sand and on marl; shallow ponds, open or holding pond

cypress (Taxodium ascendens), water ash, pond apple, red

maple, pickerel weed, maidencane, and arrowhead; and deep

sink holes; large shallow ponds; and lakes, all of which

are open. A cross section showing relative elevations is

given in Figure 15. Throughout the study it was possible

to use the term "slough" and "marsh" interchangeably. In

common usage the term "swamp" applies to wetlands with

trees and "marsh" to wetlands without trees.

 The high water line for the average wet season was

assumed to be the line where saw palmetto, slash pines, or

live oaks began (Davis, 1943). Rings of sparse vegetation,

showing white on the photographs, also helped delineate the

outer limits of many wetland areas, particularly ponds.

Following are details of area measurements made of the

different types of habitat.