Basionym Name:Gyrophora atropruinosa var. laevis Schaer., Naturwiss. Anzeiger Allgem. Schweizer. Gesellsch. Naturwiss. 1: 8 (1817)
Homotypic synonyms:Agyrophora laevis (Schaer.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 68 (1950)Gyrophora anthracina var. laevis (Schaer.) Hepp, Flecht. Europ.: no. 720 (1860)Gyrophora cinerascens var. laevis (Schaer.) Boistel, Nouv. Fl. Lich. (Paris) 2: 54 (1903)Gyrophora laevis (Schaer.) Du Rietz, Ark. Bot. 19(no. 12): 6 (1925)Umbilicaria anthracina var. laevis (Schaer.) Schaer., Enum. critic. lich. europ. (Bern): 27 (1850)Umbilicaria atropruinosa var. laevis (Schaer.) Nyl., Flora, Regensburg 48: 418 (1865)Umbilicaria laevis (Schaer.) Frey, Hedwigia 71: 117 (1931)