Basionym Name:Dictydium umbilicatum var. fuscum Lister, J. Bot., Lond. 36: 120 (1898)
Homotypic synonyms:Cribraria cancellata var. fusca (Lister) Nann.-Bremek., Acta bot. neerl. 11: 22 (1962)Dictydium cancellatum subsp. fuscum (Lister) Meyl., Bull. Soc. Vaud. Sci. Nat. 59: 485 (1937)Dictydium cancellatum var. fuscum (Lister) Lister, J. Bot., Lond. 36: 120 (1898)