
Appearance
Cap: 2-7 cm wide; convex with an inrolled margin, becoming planoconvex or flat; semicircular to kidney-shaped in outline; rubbery and moist; covered with thick, gelatinous spines with blunt tips; dark brownish gray or bluish gray, fading to grayish.Gills: Close or nearly distant; white to pale grayish.
Stem: Absent.
Flesh: Grayish or whitish; rubbery.
Odor and Taste: Odor not distinctive, or mealy; taste not distinctive or slightly foul.
Spore Print: White.

Habitat
Saprobic on the dead wood of hardwoods (especially maples); growing alone or in overlapping clusters; summer and fallReferences:
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https://en.wikipedia.org/wiki/Hohenbueheliahttps://www.mushroomexpert.com/hohenbuehelia_mastrucata.html