1-prl11808 2-prl11527

Gloeoporus dichrous (Fr. : Fr.) Bres.

Hedwigia 53: 506 (1912)

Name:
gelatinous-pored polypore; bicoloured bracket
Fruitbody:
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).
Ecology:
White rot on hardwoods, rarely conifers. Reported to be found on dead polypores.
Phenology:
For Chicago Region can be found from May to November.
Biogeography:
Widespread across North America.
Chicago Region status:
Fairly common. Widespread.
Type:
Europe.
Taxonomy:
Ginns (2014, PDF) gives no explanation for his new combination in Gelatoporia. DNA phylogenies argue against this placement. See the Genus Gloeoporus page.
Specimens examined:
Our Chicago research database has 50 collections plus 25 observations for the past 20 years.
Description links:
Michael Kuo ; Gary Emberger ; Gilbertson European Polypores
Records online:
Mushroom Observer ; MycoPortal
Taxon links:
228918 MycoBank ; Index Fungorum ; Species Fungorum