Mycena epipterygia is a species of fungus in the family Mycenaceae of mushrooms commonly found in Europe.

It grows in diverse habitats: in deciduous and coniferous woods, but it is also found in heather and acid grasslands, amongst grasses and mosses.

The cap has a sticky surface from which the cuticle can be peeled,[1] and measures 1 to 2 cm (3⁄8 to 3⁄4 in) wide, with a colour varying from yellowish brown to gray-brown.

The stipe is long and slender, about 4–9 cm (1+5⁄8–3+1⁄2 in) tall and 1–2 mm wide;[6] it does not taper, and is yellowish to yellow-green, the colour serving to distinguish the fungus from other species.

[2] The gills are white to cream, sometimes tinged with pink when older; they are fairly widely spaced, adnate, or slightly decurrent.