Domanski, Orlos & Skirg., (1967) Daedalea sepiaria (Wulfen) Fr., (1821) Daedalea ungulata Lloyd, (1915) Gloeophyllum ungulatum (Lloyd) Imazeki, (1943) Lenzites argentina Speg., (1898) Lenzites sepiaria (Wulfen) Fr., (1889) Merulius sepiarius (Wulfen) Schrank, (1789) Gloeophyllum sepiarium, the rusty gilled polypore, is a wood decay fungus that causes a brown rot.

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.

[1] The gills are adnate and close, light when fresh and darker both near the wood and in age.

[2] The fruiting body grows for only one year, and produces spores in late summer and autumn.

[2] Media related to Gloeophyllum sepiarium at Wikimedia Commons This Agaricomycetes-related article is a stub.