1) Lichen Watch List Species for Ohio.
2) "The Macrolichens of Ohio" (by Ray Showman and Don Flenniken) - Updates.
3) Photographs of Ohio Lichens.
4) A list of Crustose Lichens of Ohio (by Don Flenniken).
5) List of Macrolichens of Ohio (with links to distribution maps)
6) Below, a CLICKABLE map indicating the total number of lichen species recorded from each Ohio County.

ALL-OHIO LICHEN LIST