Synonymy:
Conferva ebenea Dillwyn, Brit. Conferv.: tab. 101 (1809)
Chroolepus ebeneus (Dillwyn) C. Agardh, Syst. alg.: 36 (1824)
Racodium ebeneum (Dillwyn) Fr., Summa veg. Scand., Sectio Prior (Stockholm): 122 (1845)
Coenogonium ebeneum (Dillwyn) A.L. Sm., Monogr. Brit. Lich. 2: 3 (1911)

Byssus nigra Huds., Fl. Angl.: 487 (1762)
Conferva nigra (Huds.) Roth, Catal. Bot. 3: 299 (1806)
Cystocoleus niger (Huds.) Har., J. Bot., Paris 4: 91 (1890)
Coenogonium nigrum (Huds.) Ehrenb., Annln naturh. Mus. Wien 25: 241 (1923)

Position in classification:
Cystocoleus, Cystocoleaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Ascomycota, Fungi

Note:
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