Basionym Name:Didymium difforme var. comatum Lister, J. Bot., Lond. 39: 8 (1901)
Homotypic synonyms:Didymium comatum (Lister) Nann.-Bremek., Proc. K. Ned. Akad. Wet., Ser. C, Biol. Med. Sci. 69: 361 (1966)