Gloeophyllum sepiarium
species of fungus
Gloeophyllum sepiarium, the rusty gilled polypore, is a wood decay fungus that causes a brown rot.
Description
The cap is 1.5–15 centimetres (1⁄2–6 in) 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.
This brief starts where responsible research should: with the source description of “Gloeophyllum sepiarium” as species of fungus. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of fungus. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 7, 2026. The linked authority identifier is Q12951866. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Gloeophyllum sepiarium” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.