Basionym: Diderma squamulosum Alb. & Schwein., Conspectus Fungorum in Lusatiae superioris: 88, t. 4:5 (1805) [MB214550]
Obligates Synonym: Cionium squamulosum (Alb. & Schwein.) Spreng., Caroli Linnaei systema vegetabilium 4 (1): 528 (1827) [MB232738]
Taxonomische Synonyme:
Didymium applanatum Nann.-Bremek., Proceedings van de Koninklijke Nederlandse Akademie van Wetenschappen Section C 74: 352 (1971) [MB313076]
Didymium praecox de Bary, Fungi Europaei exsiccati Cent. 4: no. 367 (1861) [MB142211]
Didymium praecox de Bary ex Rostaf., Sluzowce Monografia: 163 (1875) [MB841906]
