Basionym: Hydnum paradoxum Schrad., Spicilegium Florae Germanicae: 179, t. 4:1 (1794) [MB#199725] Obligate synonyms: - Schizopora paradoxa (Schrad.) Donk, Persoonia 5 (1): 104 (1967) [MB#338860] - Sistotrema digitatum Pers., Synopsis methodica fungorum: 553 (1801) [MB#202911] - Hyphodontia paradoxa (Schrad.) Langer & Vesterh., Nordic Journal of Botany 16 (2): 211 (1996) [MB#436324] - Irpex paradoxus (Schrad.) Fr., Epicrisis Systematis Mycologici: 522 (1838) [MB#163406] - Sistotrema paradoxum (Schrad.) Pers., Synopsis methodica fungorum: 553 (1801) [MB#440443] - Xylodon versiporus f. paradoxus (Schrad.) Domanski, Flora Polska Grzyby (Mycota) 2: 51 (1965) [MB#350515] - Lenzites paradoxa (Schrad.) Pat., J. Micrographie: 23 (1885) [MB#440056] - Kneiffiella paradoxa (Schrad.) Zmitr. & Malysheva, Pyatnadtsataya Komi Respublikanskaya Molodezhnaya Nauchnaya Konferentsiya 2: 103 (2004) [MB#368242] - Xylodon digitatus (Pers.) Gray, A natural arrangement of British plants 1: 649 (1821) [MB#505201] - Schizopora paradoxa var. paradoxa (2022) [MB#846229] Taxonomic synonyms: - Daedalea mollis Velen., Ceske Houby 4-5: 690 (1922) [MB#207975] - Irpex daedaleaeformis Velen., Ceske Houby 4-5: 743 (1922) [MB#262760] - Irpex porosolamellatus Rick, Iheringia 5: 187 (1959) [MB#332644] - Poria albofulva Rick, Iheringia 7: 282 (1960) [MB#337505] - Irpex decumbens Rick, Egatea 17: 211 (1932) [MB#251771] - Hydnum obliquum Schrad., Spicilegium Florae Germanicae: 179 (1794) [MB#195480] - Irpex obliquus (Schrad.) Fr., Elenchus Fungorum 1: 147 (1828) [MB#171379] - Sistotrema obliquum (Schrad.) Alb. & Schwein., Conspectus Fungorum in Lusatiae superioris: 263 (1805) [MB#206489] - Coriolus obliquus (Schrad.) Pat., Essai taxonomique sur les familles et les genres des Hyménomycètes: 94 (1900) [MB#468907] - Xylodon obliquus (Schrad.) P. Karst., Acta Societatis pro Fauna et Flora Fennica 2 (1): 31 (1881) [MB#472136] - Polyporus obliquus (Schrad.) E.H.L. Krause, Mecklenburgs Basidiomyceten: 17 (1934) [MB#473803] - Poria versipora f. obliqua (Schrad.) Kreisel, Die phytopathogenen Grosspilze Deutschlands: Basidiomycetes mit Ausschluss der Rostpilze und Brandpilze: 154 (1961) [MB#350111] - Xylodon versiporus f. obliquus (Schrad.) Domanski, Flora Polska Grzyby (Mycota) 2: 51 (1965) [MB#350514] - Hydnum pseudoboletus DC., Flore française 6: 37 (1815) [MB#221876] - Xylodon pseudoboletus (DC.) Kuntze, Revisio generum plantarum 3 (3): 541 (1898) [MB#472142] - Polyporus versiporus Pers., Mycologia Europaea 2: 105 (1825) [MB#374313] - Poria versipora (Pers.) Lloyd, Mycological Writings 3 (35): 473 (1910) [MB#414475] - Xylodon versiporus (Pers.) Bondartsev, The Polyporaceae of the European USSR and Caucasia: 128 (1953) [MB#307897] - Schizopora versipora (Pers.) Teixeira, Revista Brasileira de Botânica 9 (1): 44 (1986) [MB#131590] - Agaricus versiporus (Pers.) E.H.L. Krause, Basidiomycetum Rostochiensium, Suppl. 4: 143 (1932) [MB#255810] - Poria versipora (Pers.) Sacc., Sylloge Fungorum 6: 311 (1888) [MB#195829] - Poria versipora (Pers.) Romell, Adapt. Antarct. Ecosys.: 63 (1966) [MB#337526] - Poria versipora (Pers.) Romell: 15 (1926) [MB#531482] - Poria eyrei Bres., Transactions of the British Mycological Society 3: 264 (1911) [MB#216343] - Polyporus laciniatus Velen., Ceske Houby 4-5: 638 (1922) [MB#268784] - Poria platensis Speg., Anales del Museo Nacional de Historia Natural Buenos Aires Ser. 3, 1: 53 (1902) [MB#154417] - Xylodon digitatum (Pers.) Gray (1821) [MB#440781] - Poria membranicincta var. megalospora Rick, Iheringia 7: 278 (1960) [MB#350108] - Irpex obliquus var. argillaceocinnamomeus Rodway & Cleland, Papers and Proceedings of the Royal Society of Tasmania 1929: 15 (1930) [MB#272571] - Irpex obliquus f. labyrinthiformis Rodway & Cleland, Papers and Proceedings of the Royal Society of Tasmania 1929: 14 (1930) [MB#272570] - Polyporus lacinatus Velen. (1922) [MB#277582]