Basionym Name:Umbilicaria leiocarpa var. nana Vain., Résult. Voy. Belgica, Lich.: 9 (1903)
Homotypic synonyms:Agyrophora leiocarpa var. nana (Vain.) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 56 (1950)Agyrophora nana (Vain.) C.W. Dodge, Lich. Fl. Antarct. Cont. adjac. Isls (Canaan, N. Hamp.): 118 (1973)Gyrophora leiocarpa var. nana (Vain.) Zahlbr., Cat. Lich. Univers. 4: 682 (1927)