Trametes gibbosa
https://www.mushroomexpert.com/Trametes_gibbosa.html
Ecology: Saprobic on the deadwood of hardwoods; annual; causing a white rot of the sapwood; growing alone or gregariously on logs and stumps; spring through fall; originally described from Europe (Persoon 1795); widely distributed in Eurasia; in North America distributed from the Great Plains eastward, and in the Pacific Northwest. The illustrated and described collections are from Illinois, Michigan, North Carolina, and Ohio.
Cap: 4-20 cm across; 2.5-9 cm deep; 1.5-5 cm thick; semicircular or kidney-shaped; convex to planoconvex; dry; vaguely or distinctly zoned with tomentose and bald zones; whitish to grayish or brownish (sometimes green in places due to algae); lumpy; the margin often yellowish to brownish or brown when fresh.
Pore Surface: White to pale brownish; usually featuring slot-like pores (1-2 per mm) with thick pore walls, but occasionally with maze-like pores; tubes 2-15 mm deep; bruising yellow to pinkish or brownish—or not bruising.
Stem: Absent, or present as a prominent bump at the point of attachment to the substrate or, less often, as a stubby lateral structure with a surface like that of the cap.
Flesh: White; very tough and leathery; not changing when sliced.
Odor and Taste: Odor usually strong and fragrant when fresh, but sometimes not distinctive; taste slightly bitter, or not distinctive.
Chemical Reactions: KOH yellow to orange on flesh.
Spore Print: Whitish to faintly yellowish.
Microscopic Features: Spores 4-5 x 1.5-2.5 m; cylindric to long-ellipsoid; smooth; hyaline in KOH; inamyloid. Cystidia not found. Setae not found. Hyphal system trimitic: generative hyphae 2.5-5 m wide, thin-walled, with clamp connections; skeletal hyphae 5-7.5 m wide, thick-walled, aseptate; binding hyphae 2.5-5 m wide, thick-walled, aseptate, branching frequently.
Ethereal. Enchanted. Eerie. 
