Basionym Name:Mytilostoma deflectens P. Karst., Meddn Soc. Fauna Flora fenn. 5: 50 (1879)
Homotypic synonyms:Lophidium deflectens (P. Karst.) Sacc., Syll. fung. (Abellini) 2: 712 (1883)Mytilinidion deflectens (P. Karst.) Mussat, [as 'Mytilidion'], in Saccardo, Syll. fung. (Abellini) 15: 223 (1901)