Physcia phaea (Black-Eyed Rosette Lichen)
Photo was taken at Governor Dodge State Park
Photo was taken at Gibraltar Rock State Natural Area
Photo was taken at McGilvra Woods State Natural Area
Photo was taken at Pike Lake, Kettle Moraine State Forest Northern Unit
Photo was taken at Ableman's Gorge State Natural Area
Both photos (above & below) were taken at Ableman's Gorge State Natural Area