Basionym Name:Polyporus declivis Kalchbr., in Thümen, Die Forschungsreise S.M.S. Gazelle 4(no. 3): 3 (1889)
Homotypic synonyms:Fomes declivis (Kalchbr.) Sacc., Syll. fung. (Abellini) 9: 176 (1891)Scindalma declive (Kalchbr.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 518 (1898)