Basionym Name:Mycoporum ptelaeodes f. majus Nyl., in Norrlin, Not. Sällsk. Fauna et Fl. Fenn. Förh., Ny Ser. 13: 344 (1873)
Homotypic synonyms:Cyrtidula major (Nyl.) Vain., Acta Soc. Fauna Flora fenn. 49(no. 2): 224 (1921)Dermatina hippocastani f. majus (Nyl.) Riedl, Sydowia 17(1-6): 110 (1964)Dermatina major (Nyl.) Lettau, Feddes Repert., Beih. 119(no. 3): 174 (1940)Dermatina ptelaeodes f. major (Nyl.) Zahlbr., Cat. Lich. Univers. 1: 550 (1922)