Basionym: Corticium cinereum Pers., Neues Magazin für die Botanik 1: 111 (1794) [MB#449619] Obligate synonyms: - Auricularia cinerea (Pers.) Sowerby, Coloured Figures of English Fungi 3: 171, f. 388:3 (1803) [MB#439689] - Thelephora cinerea (Pers.) Pers., Synopsis methodica fungorum: 579 (1801) [MB#473913] - Kneiffia cinerea (Pers.) Bres., Annales Mycologici 1 (2): 103 (1903) [MB#226806] - Xerocarpus cinereus (Pers.) P. Karst., Revue Mycologique Toulouse 3 (9): 22 (1881) [MB#440756] Taxonomic synonyms: - Xylobolus tumulosus P. Karst., Meddelanden af Societas pro Fauna et Flora Fennica 6: 11 (1881) [MB#101388] - Stereum tumulosum (P. Karst.) Sacc., Sylloge Fungorum 6: 572 (1888) [MB#208071] - Thelephora obscura Pers., Mycologia Europaea 1: 146 (1822) [MB#200997] - Peniophora obscura (Pers.) Bres., Atti dell´Istituto Reale dell´Accademia di Rovereto di Scienze 3: 113 (1897) [MB#122966] - Corticium obscurum (Pers.) Fr., Hymenomycetes europaei: 653 (1874) [MB#191588] - Terana obscura (Pers.) Kuntze, Revisio generum plantarum 2: 872 (1891) [MB#440593]