132 FLORIDA GEOLOGICAL SURVEY I3TH ANNUAL REPORT 



Chemically, most of the soils seem to be pretty well supplied with 

 phosphorus, as would be expected from the occurrence of so much 

 phosphate rock. 



Vegetation. The vegetation types include flatwoods with and 

 without saw-palmetto (fig. 23), a little high pine land, a few 

 patches of scrub, many cypress ponds (fig 24), wet prairies, high 

 and low hammocks (fig. 25), various kinds of swamps and bays, 

 and salt marshes along the shores of Tampa Bay. The cypres? 

 ponds are chiefly confined to Pasco and Pinellas Counties, the 

 lowNliammocks to Hillsborough and Polk, and the high hammocks 

 to the neighborhood of the Peace Ri\er. Swamps are not very ex- 

 tensive. 



Fig. 25. Low hammock near Peace_ River about two miles southeast of 

 Bartow, showing cabbage palmetto, dwarf palmetto, sweet gum, rattan v'ne, 

 etc. March 13, 1915. 



The commonest plants seem to be as follows, the first tree named 

 being^apparently about 15 times as abundant as' its nearest compet- 

 itor : 



COMMONEST PLANTS OF WESTERN DIVISION OF FLATWOODS. 



TIMBER TREES 



Fiuus palustris 

 Pinus Caribaea 

 Taxodium imbricarium 

 Pinus EUiottii 

 Finus clausa 



Long-leaf pine 

 Slash pine 

 fPond) cypress 

 Slash pine 

 Spruce pine 



Flatwoods 

 Flatwoods 

 Cypress ponds 

 Branch-swamps, etc. 

 Scrub 



