I think Florida was an official member of the Confederacy. If so, it's contribution was minimal,.....

Florida was indeed a Confederate state and was known as the breadbasket of the Confederacy. It was Florida cattle that supplied much of the food that kept Southern troops fed. Many of the skirmishes fought in Florida were raids by Northern Marine detachments landed from either the Atlantic or the Gulf of Mexico to try to break up the supply lines north. My reenacting unit will be taking part in the recreation of such a raid two weeks from now at Crystal River, FL, known as the Raid of Yulee Sugar Mill Plantation. There were countless such raids on both sides of the state, not many having been properly documented because of their small size. Also blockade running was a thriving occupation, bringing in much needed supplies from foreign ports to start their journey northward.

The capitol of Florida, Tallahassee and the capital of Texas, Austin, have the distinction of being the only two Confederate capitols never to fall into enemy hands.