Basionym Name:Bathelium mastoideum Afzel. ex Ach., Methodus, Sectio prior (Stockholmiæ): 111 (1803)
Homotypic synonyms:Trypethelium mastoideum (Afzel. ex Ach.) Ach., Lich. Univ.: 307 (1810)Trypethelium mastoideum var. mastoideum (Afzel. ex Ach.) Ach., Lich. Univ.: 307 (1810)