Gloeophyllum sepiarium
Gloeophyllum sepiarium, the rusty gilled polypore, is a wood decay fungus that causes a brown rot.
Description
The cap is wide, loosely fan-shaped, brown with a yellow-orange margin during growth, velvety then smooth, and leathery with a mild odor and taste. The tissue darkens in KOH. The flesh is tannish.The gills are adnate and close, light when fresh and darker both near the wood and in age. The spores are white, cylindrical, and smooth. The spore print is white.
The fruiting body grows for only one year, and produces spores in late summer and autumn. Its hymenial surface is distinctive from other polypores due to the presence of gills.
The species is inedible.
Similar species
Similar species include G. trabeum, Daedaleopsis confragosa, Daedalea quercina, Lenzites betulina, Trametes betulina, and T. versicolor.Habitat and distribution
It grows on dead conifers, both in the wild and on lumber.It is found throughout North America.