Basionym Name:Polyporus dualis Peck, Ann. Rep. N.Y. St. Mus. nat. Hist. 30: 44 (1878)
Homotypic synonyms:Mucronoporus dualis (Peck) Ellis & Everh., J. Mycol. 5(1): 28 (1889)Polystictus dualis (Peck) Sacc., Syll. fung. (Abellini) 6: 208 (1888)