Basionym:
Boletus medulla-panis Jacq., Miscellanea austriaca ad botanicum, chemiam et historiam naturalem spectantia 1: 141 (1778) [MB#375125]
Obligate synonyms:
- Poria medulla-panis (Jacq.) Pers., Neues Magazin für die Botanik 1: 109 (1794) [MB#199956]
- Poria medullaris Gray, A natural arrangement of British plants 1: 640 (1821) [MB#356916]
- Fomitopsis medulla-panis (Jacq.) Bondartsev & Singer, Annales Mycologici 39 (1): 55 (1941) [MB#297496]
- Trametes medulla-panis (Jacq.) Pat., Essai taxonomique sur les familles et les genres des Hyménomycètes: 93 (1900) [MB#101915]
- Polyporus medulla-panis (Jacq.) Fr., Utkast til en Svensk Flora. Ed. 3: 661 (1816) [MB#230040]
- Daedalea medullaris (Gray) Purton, An appendix to the Midland flora: 250 (1821) [MB#469014]
- Physisporus medulla-panis (Jacq.) Chevall., Flore Générale des Environs de Paris 1: 262 (1826) [MB#472319]
Taxonomic synonyms:
- Polyporus chromaticus Berk. & Cooke, Botanical Journal of the Linnean Society 15: 384 (1877) [MB#455454]
- Poria chromatica (Berk. & Cooke) Sacc., Sylloge Fungorum 6: 326 (1888) [MB#191282]
- Perenniporia chromatica (Berk. & Broome) Decock & Ryvarden, Mycological Research 103 (9): 1142 (1999) [MB#460671]
- Polyporus dryinus Berk. & Cooke, Grevillea 6 (40): 130 (1878) [MB#472540]
- Poria dryina (Berk. & Cooke) Sacc., Sylloge Fungorum 6: 315 (1888) [MB#197911]
- Polyporus limitatus Berk. & M.A. Curtis, Grevillea 1 (4): 54 (1872) [MB#472678]
- Polystictus limitatus (Berk. & M.A. Curtis) Cooke, Grevillea 14 (71): 85 (1886) [MB#223666]
- Poria limitata (Berk. & M.A. Curtis) Sacc., Sylloge Fungorum 6: 324 (1888) [MB#200971]
- Microporus limitatus (Berk. & M.A. Curtis) Kuntze, Revisio generum plantarum 3 (3): 496 (1898) [MB#470134]
- Poria laevis Speg., Brotéria, Bot.: 135 (1937) [MB#471065]
- Polyporus unitus Pers., Mycologia Europaea 2: 93 (1825) [MB#473577]
- Poria unita (Pers.) P. Karst., Revue Mycol. (Toulouse) (1881) [MB#225299]
- Perenniporia unita (Pers.) Murrill, Mycologia 34 (5): 595 (1942) [MB#289143]
- Fomes unitus (Pers.) J. Lowe, Mycologia 47: 222 (1955) [MB#297480]
- Fibuloporia unita (Pers.) Bondartsev, The Polyporaceae of the European USSR and Caucasia: 309 (1953) [MB#469184]
- Fomes unitus (Pers.) Komarova, Opredelitel' trutovykh gribov Belorussii [Key-book to polyporoid fungi of Byelo- russia]
: 191 (1964) [MB#491529]
- Physisporus unitus (Pers.) Gillet, Les Hyménomycètes ou Description de tous les Champignons qui Croissent en France: 700 (1878) [MB#472341]
- Fomitopsis unita (Pers.) Bondartsev, The Polyporaceae of the European USSR and Caucasia: 309 (1953) [MB#297515]
- Polyporus xylostromatis Fuckel, Jahrbücher des Nassauischen Vereins für Naturkunde 27-28: 86 (1874) [MB#472918]
- Poria xylostromatis (Fuckel) Cooke, Grevillea 14 (72): 111 (1886) [MB#230056]