Synonymy:
Polyporus balsameus Peck, Ann. Rep. N.Y. St. Mus. nat. Hist. 30: 46 (1878) [1877]
Polystictus balsameus (Peck) Cooke, Grevillea 14(no. 71): 83 (1886)
Polystictus balsameus (Peck) Sacc., Syll. Fung. (Abellini) 6: 259 (1888)
Microporus balsameus (Peck) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 495 (1898)
Coriolus balsameus (Peck) Murrill, N. Amer. Fl. (New York) 9(1): 21 (1907)
Tyromyces balsameus (Peck) Murrill, North. Polyp. (New York): 13 (1914)
Spongiporus balsameus (Peck) A. David, Bull. mens. Soc. linn. Lyon 49(1): 9 (1980)
Oligoporus balsameus (Peck) Gilb. & Ryvarden, Mycotaxon 22(2): 364 (1985)

Tyromyces cutifractus Murrill, Mycologia 4(2): 94 (1912)
Polyporus cutifractus (Murrill) Murrill, Mycologia 4(4): 217 (1912)

Tyromyces kymatodes Donk, Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 9: 154 (1933)

Tyromyces kymatodes var. cuticulatus Donk, Meded. Bot. Mus. Herb. Rijks Univ. Utrecht 9: 155 (1933)

Leptoporus alma-atensis Pilát, Bull. Trimestriel Soc. Mycol. France 52(3): 307 (1937) [1936]

Polyporus basilaris Overh., Bull. Torrey bot. Club 68: 112 (1941)
Tyromyces basilaris (Overh.) K.J. Martin, Tech. Bull. Ariz. agric. Exp. Stn 209: 24 (1974)

Position in classification:
Postia, Dacryobolaceae, Polyporales, Incertae sedis, Agaricomycetes, Basidiomycota, Fungi

Note:
We aim to keep taxonomic opinions up to date, but errors or delays can occur. Please report them to our curator.