FIGURES Figure Page 1 Map of the Florida Keys, showing State parks and extent of the Key Largo Limestone and the Miami Limestone ... 2 2 Oblique view of the Floridan Plateau .................. 4 3 Mangrove trees, showing thickly tangled prop roots ...... 8 4 Mangrove seedlings in the process of colonizing a shallow lim e-m ud bank .................................... 9 5 Aerial view of part of John Pennekamp Park ........... 10 6 Gumbolimbo tree .................................. 11 7 Florida Poisontree ................................. 11 8 West Indies Mahogany tree ......................... 12 9 M astic tree ....................................... 12 10 Jamaica Dogwood ................................. 13 11 Pigeon Plum tree ................................... 13 12 Florida Strangler Fig ................................ 14 13 Lignumvitae tree .................................. 14 14 John Pennekamp Coral Reef State Park, showing points of interest on the reef tract .......................... 16 15 Map of John Pennekamp Coral Reef State Park ........ 17 16 Map of Lignumvitae Key State Botanical Site and Indian Key State Historical Site ............................ 19 17 Aerial view of Indian Key ........................... 22 18 Map of Indian Key showing archeological sites .......... 23 19 Ocean-facing beach at Long Key showing erosion ....... 25 20 Map of Long Key State Recreation Area ............... 26 21 Map of Bahia Honda State Recreation Area ............ 27 vii