Basionym Name:Polyporus subspadiceus Fr., Observ. mycol. (Havniae) 2: 263 (1818)
Homotypic synonyms:Physisporus subspadiceus (Fr.) Gillet, Hyménomycètes (Alençon): 700 (1878)Poria subspadicea (Fr.) Sacc., Syll. fung. (Abellini) 6: 321 (1888)