This stinkhorn is probably Phallus ravenelii, and is found in eastern North America. The genus name referring to the shape of the mature fruiting body. These fungi emit a putrid aroma, attracting flies that help distribute the stinkhorn spores.
For more information on these stinkhorns, visit Mushroom Expert.
I had originally thought that this was one of the Mutinus species - dog stinkhorns - which usually have pinkish fruiting bodies. Thanks to Bill Petty of Florida Fungi for helping me out with this one.
For a taxonomic tree and links to other fungi posted on Wild Florida Photo see the Fungi at Wild Florida Photo page.