Punctelia rudecta (Rough Speckled Shield Lichen)
Photo was taken at Mazomanie Oak Barrens State Natural Area
Both photos (above & below) were taken at Ridgeway Pine Relict State Natural Area
Both photos (above & below) were taken at Baxter's Hollow State Natural Area
Photo was taken at Parfrey's Glen State Natural Area
Photo was taken near Muscoda
Both photos (above & below) were taken on Washington Island, Door County