Gloeoporus dichrous

Gloeoporus dichrous (Fr.) Bres.

[Caloporus dichrous]

gelatinous-pored polypore; bicoloured bracket (UK)
Epithet = two-colored. Genus = glutinous-pore.
Annual, effused-reflexed. Upper side and margin white. Lower side reddish brown, salmon-colored, with small shallow pores. When fresh, the gelatinous to rubbery pore layer can be stretched and separated from the white underside of the cap tissue. Microscopic characters: hyphae with clamps; cystidia absent; spores allantoid (curved like a sausage) to cylindrical.
Similar species
Gloeoporus taxicola grows on conifers and is effused with a white margin but no projecting cap; hyphae lack clamps, hymenium has pointed cystidioles (sterile cells similar in size to basidia).
White rot on hardwoods, rarely conifers. Reported to be found on dead polypores.
For Chicago Region can be found from May to November.
Widespread across North America.
Chicago Region status
Fairly common. Widespread.
Specimens examined
Our Chicago research database has more than 50 collections and 25 observations for the past 20 years.

Taxon Details and Links

  • Gloeoporus dichrous (Fr. : Fr.) Bres., Hedwigia 53: 506 (1912)
  • ≡ Basionym: Polyporus dichrous Fr., Observationes mycologicae 1: 125 (1815)
  • ≡ Sanctioned: Polyporus dichrous Fr., Observationes mycologicae 1: 125 (1815)
  • Caloporus dichrous (Fr. : Fr.) Ryvarden, The Polyporaceae of North Europe 1: 109 (1976)
  • Gelatoporia dichroa (Fr. : Fr.) Ginns, Index Fungorum 156: 1 (2014)
Ginns (2014, PDF) gives no explanation for his new combination in Gelatoporia. DNA phylogenies now argue against this placement. See the Genus Gloeoporus page.
Michael Kuo
Gary Emberger
Gilbertson European Polypores
Mushroom Observer
Index Fungorum and Species Fungorum

Compare Index Fungorum and Mycobank.

Cite this page as: Leacock, P.R. (2018 May 07). Gloeoporus dichrous - MycoGuide. Retrieved from

<< Gloeoporus   |   Irpex >>