Basionym: Hyphodontia subtropica C.C. Chen & Sheng H. Wu, Mycological Progress 16 (5): 561 (2017) [MB#818690] Taxonomic synonyms: - Poria radula Pers., Observationes mycologicae 2: 14 (1800) [MB#449622] - Hyphodontia radula (Fr.) Langer & Vesterh., Nordic J. Bot. 16 (2): 212 (1996) [MB#436325] - Chaetoporus radula (Pers.) Bondartsev & Singer, Annales Mycologici 39 (1): 51 (1941) [MB#294731] - Schizopora radula (Pers.) Hallenb., Mycotaxon 18 (2): 308 (1983) [MB#108505] - Boletus radula (Pers.) Pers., Synopsis methodica fungorum: 547 (1801) [MB#439699] - Polyporus radula (Pers.) Fr., Systema Mycologicum 1: 383 (1821) [MB#440371] - Physisporus radula (Pers.) Chevall., Flore Générale des Environs de Paris 1: 262 (1826) [MB#440357] - Kneiffiella radula (Pers.) Zmitr. & Malysheva, Pyatnadtsataya Komi Respublikanskaya Molodezhnaya Nauchnaya Konferentsiya: 103 (2004) [MB#368383] - Xylodon raduloides Riebesehl & E. Langer, Mycological Progress 16 (6): 649 (2017) [MB#820421] - Xylodon patagonicus J. Fernández-López, Telleria, M. Dueñas & M.P. Martín, IMA Fungus 10 (no. 2): 13 (2019) [MB#828018] - Xylodon laurentianus J. Fernández-López, Telleria, M. Dueñas & M.P. Martín, IMA Fungus 10 (no. 2): 11 (2019) [MB#828019] - Xylodon novozelandicus J. Fernández-López, Telleria, M. Dueñas & M.P. Martín, IMA Fungus 10 (no. 2): 14 (2019) [MB#828020]