Basionym Name:Phorcys betulae Niessl, Verh. nat. Ver. Brünn 14: 201 (1876)
Homotypic synonyms:Amphisphaeria betulae (Niessl) Schrantz, Bull. trimest. Soc. mycol. Fr. 76(4): 333 (1961)Didymosphaeria betulae (Niessl) Sacc., Syll. fung. (Abellini) 1: 707 (1882)Microthelia betulae (Niessl) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 498 (1898)