Basionym Name:Polyporus circumstans Morgan, J. Cincinnati Soc. Nat. Hist. 18: 37 (1895)
Homotypic synonyms:Fomes circumstans (Morgan) Sacc. & P. Syd., Syll. fung. (Abellini) 14(1): 181 (1899)Scindalma circumstans (Morgan) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 518 (1898)