Mycena citrinomarginata Gillet Cap 1-3cm across, cone-shaped with margin close to the stem when young, broadly convex with margin often flaring in maturity; color varying shades of yellow; surface with a bloom becoming polished, moist, striate. Gills ascending adnate, distant to subdistant, narrow; whitish with yellow edges. Stem 30-80 x 1-2.5mm, fragile, generally smooth; greeny gray or yellowish. Flesh thick on disc of large caps, otherwise thin, fragile; yellowish gray to white. Odor not distinctive. Taste not distinctive. Spores ellipsoid to subcylindric, 8-11 x 4-5.5ì (12-14 x 5-6ì in 2-spored variety). Deposit white. Habitat singly, scattered, or gregarious on moss, leaves, needles, or debris in deciduous and coniferous woods. Found widely distributed in western and eastern states of North America. Season April-November. Not edible.