Basionym:
Polyporus tephroleucus Fr., Systema Mycologicum 1: 360 (1821) [MB#201871]
Obligate synonyms:
- Tyromyces tephroleucus (Fr.) Donk, Meded. Bot. Mus. Herb. Rijksuniv. Utrecht 9: 150 (1933) [MB#280015]
- Oligoporus tephroleucus (Fr.) Gilb. & Ryvarden, Mycotaxon 22 (2): 365 (1985) [MB#105589]
- Spongiporus tephroleucus (Fr.) A. David, Bull. Mens. Soc. Linn. Lyon 49 (1): 37 (1980) [MB#114047]
- Polystictus tephroleucus (Fr.) Bigeard & H. Guill., La Flore des Champignons supérieurs de France 2: 374 (1913) [MB#473769]
- Boletus tephroleucus (Fr.) Spreng., Systema Vegetabilium. Ed. 16 4 (1) (1827) [MB#449607]
- Bjerkandera tephroleuca (Fr.) P. Karst., Bidr. Känn. Finl. Nat. Folk: 297 (1882) [MB#244957]
- Leptoporus tephroleucus (Fr.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 176 (1886) [MB#491945]
Taxonomic synonyms:
- Polyporus linearisporus Velen., Ceské Houby 4-5: 654 (1922) [MB#269538]
- Polyporus elatinus Berk., Hooker's J. Bot. Kew Gard. Misc. 6: 140 (1854) [MB#225947]
- Piptoporus elatinus (Berk.) Teng, Zhong Guo De Zhen Jun [Fungi of China]
: 762 (1963) [MB#337051]
- Tyromyces elatinus (Berk.) S. Ahmad, Basidiomycetes of West Pakistan: 97 (1972) [MB#325204]
- Bjerkandera melina P. Karst., Meddeland. Soc. Fauna Fl. Fenn. 14: 80 (1887) [MB#140791]
- Tyromyces melinus (P. Karst.) Bondartsev & Singer, Ann. Mycol. 39 (1): 52 (1941) [MB#307285]
- Polyporus melinus (P. Karst.) Sacc., Syll. Fung. 6: 134 (1888) [MB#228819]
- Polyporus tokyoensis Lloyd, Synopsis of the section Apus of the genus Polyporus (7): 302 (1915) [MB#200645]
- Bjerkandera cinerata P. Karst., Meddeland. Soc. Fauna Fl. Fenn. 16: 103 (1890) [MB#236358]
- Polyporus cineratus (P. Karst.) Sacc., Syll. Fung. 9: 169 (1891) [MB#179542]
- Polyporus tokyvensis Lloyd (1915) [MB#277731]