Here are a couple of links to the North American Lichen Consortium. Several of the State Park lichen species lists, and the main website, are listed below for folks to peruse:
Note that in the "Options Box" on each of the different state park pages, you can click on the "Display As Images" filter, and you will see images of each of the species. You need to hit "Rebuild List" for this to work. Pretty cool.
For those who would like a copy of our field oriented Florida macrolichen key, they can go to this link and scroll to the bottom of the page under "Bryophyte and Lichen Literature" and click on the most recent 2015 version. Hopefully we will get that updated in 2018.