Synonymy:
Polyporus volvatus Peck, Ann. Rep. N.Y. St. Mus. nat. Hist. 27: 98 (1875) [1874]
Fomes volvatus (Peck) Cooke, Grevillea 13(no. 68): 119 (1885)
Scindalma volvatum (Peck) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 519 (1898)
Ungulina volvata (Peck) Pat., Essai Tax. Hyménomyc. (Lons-le-Saunier): 102 (1900)

Polyporus obvolutus Berk. & Cooke, Grevillea 7(no. 41): 1 (1878)
Polyporus volvatus var. obvolutus (Berk. & Cooke) Peck, Bull. Torrey bot. Club 7: 105 (1880)
Fomes volvatus var. obvolutus (Berk. & Cooke) Sacc., Syll. Fung. (Abellini) 6: 165 (1888)

Polyporus volvatus var. torreyi W.R. Gerard, Bull. Torrey bot. Club 7: 105 (1880)
Fomes volvatus var. torreyi (W.R. Gerard) Sacc., Syll. Fung. (Abellini) 6: 166 (1888)
Cryptoporus volvatus var. torreyi (W.R. Gerard) Shear, Bull. Torrey bot. Club 29: 450 (1902)

Polyporus inflatus Ellis & I.C. Martind., Am. Nat. 18: 722 (1884)

Fomes volvatus var. helix Henn., Hedwigia 37: 273 (1898)
Polyporus volvatus var. helix (Henn.) Murrill, N. Amer. Fl. (New York) 9(2): 94 (1908)

Cryptoporus volvatus var. pleurostoma (Pat.) Sacc., Bull. Soc. Mycol. France 23(2): 74 (1907)
Ungulina volvata var. pleurostoma Pat., Bull. Soc. Mycol. France 23(2): 74 (1907)
Fomes volvatus var. pleurostoma (Pat.) Sacc. & Traverso, Syll. Fung. (Abellini) 19: 718 (1910)

Position in classification:
Cryptoporus, Polyporaceae, Polyporales, Incertae sedis, Agaricomycetes, Basidiomycota, Fungi

Note:
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