Pyrenocarpon thelostomum (Ach. ex J. Harriman) Coppins & Aptroot
Fungi | Ascomycota | Lichinomycetes | Lichinales | Lichinaceae | Pyrenocarpon | Pyrenocarpon thelostomum
weathered concrete along lakeshore in spash zone
Illinois Beach State Park: North Unit, lakeshore