Basionym Name:Acrothecium tenebrosum subsp. marchalii Sacc., Syll. fung. (Abellini) 4: 484 (1886)
Homotypic synonyms:Acrothecium marchalii (Sacc.) Mussat, in Saccardo, Syll. fung. (Abellini) 15: 157 (1901)