Caloplaca citrina, synonym Flavoplaca citrina (Mealy Firedot Lichen)
Both photos (above & below) were taken in Muscoda
Photo was taken in Muscoda
Photo above was taken at Blue River Bluffs State Natural Area

Both photos (above & below) were taken near Lake Pepin
Photo was taken at Peninsula State Park
Both photos (above & below) were taken at Ableman's Gorge State Natural Area
Both photos (above & below) were taken at Ableman's Gorge State Natural Area
Photo above was taken at Halfway Prairie, Dane County