Alan Cressler: J.N. 'Ding' Darling National Wildlife Refuge, Sanibel Bayou, from Red Mangrove Overlook, Sanibel Island, Lee County, Florida 1
Alan Cressler: J.N. 'Ding' Darling National Wildlife Refuge, Sanibel Bayou, near the Observation Tower, Sanibel Island, Lee County, Florida, Mindi Dalton Collecting a Water Sample 1
Alan Cressler: Campyloneurum phyllitidis, Six Mile Cypress Slough Preserve, Lee County, Florida 1
Alan Cressler: Euphorbia cyathophora, J.N. 'Ding' Darling National Wildlife Refuge, Bailey Tract, Sanibel Island, Lee County, Florida 1
Alan Cressler: Pantherophis alleghaniensis, Six Mile Cypress Slough Preserve, Lee County, Florida 1
Alan Cressler: Pantherophis alleghaniensis, Six Mile Cypress Slough Preserve, Lee County, Florida 3
Alan Cressler: Rhizophora mangle, Ten Thousand Islands National Wildlife Refuge, Brackish Marsh, Collier County, Florida 1
Alan Cressler: Lucky Lake, Florida Panther National Wildlife Refuge, Collier County, Florida 1
Alan Cressler: Prescribed Burn, Florida Panther National Wildlife Refuge, Collier County, Florida 2
Alan Cressler: Cypress Dome, Florida Panther National Wildlife Refuge, Collier County, Florida 1
Alan Cressler: Utricularia foliosa, Cypress Dome, Florida Panther National Wildlife Refuge, Collier County, Florida 2
Alan Cressler: Ruellia succulenta, Florida Panther National Wildlife Refuge, Collier County, Florida 1
Alan Cressler: Odocoileus virginianus clavium, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 1
Alan Cressler: Saltwater Lagoon, North End, Big Pine Key, National Key Deer Refuge, Monroe County, Florida, Mindi Dalton Collecting a Water quality Sample 1
Alan Cressler: Mosquito Control Ditch, End of Key Deer Drive, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 1
Alan Cressler: Mosquito Control Ditch, End of Key Deer Drive, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 2
Alan Cressler: Thrinax morrisii, and Pinus elliottii var. densa, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 1
Alan Cressler: Mortuary Sink, Big Pine Key, National Key Deer Refuge, Monroe County, Florida, Dan Calhoun Collecting a Water Sample 1
Alan Cressler: Moonscape Pond, Big Pine Key, National Key Deer Refuge, Monroe County, Florida, Dan Calhoun Collecting a Water Sample 1
Alan Cressler: Senna mexicana var. chapmanii, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 1
Alan Cressler: Ernodea littoralis, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 2
Alan Cressler: Dryophytes cinereus, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 2
Alan Cressler: Dryophytes cinereus, Big Pine Key, National Key Deer Refuge, Monroe County, Florida 3
Alan Cressler: Impoundment CP-9 Ditch, Authur R. Marshall Loxahatchee National Wildlife Refuge, Palm Beach County, Florida, Dan Calhoun Releasing Swabbed Frogs 1
Alan Cressler: Impoundment CP-1, Authur R. Marshall Loxahatchee National Wildlife Refuge, Palm Beach County, Florida 1
Alan Cressler: Sinkhole, and Ficus aurea, Pleistocene Age, Miami Limestone, Castellow Hammock Preserve, Miami-Dade County, Florida 1
Alan Cressler: Liguus fasciatus castaneozonatus, Castellow Hammock Park, Miami-Dade County, Florida 1
Alan Cressler: Goniopteris reptans, Large Sinkhole, Castellow Hammock, Miami-Dade County, Florida 1
Alan Cressler: Tectaria heracleifolia, Large Sinkhole, Castellow Hammock, Miami-Dade County, Florida 1
Alan Cressler: Didymoglossum krausii, Ficus aurea root, Large Sinkhole, Castellow Hammock Park, Miami-Dade County, Florida 2