About Mycena crocea Maas Geest.
The cap of Mycena crocea is vivid yellow, with a shape ranging from conical to broadly convex, and reaches up to 15 mm (0.6 in) in diameter. Young caps are typically conical or bell-shaped, and become flat when the mushroom reaches maturity. The cap margin is striated, while the cap surface is moist, glabrous, and somewhat hygrophanous. The flesh is thin, pallid, and yellowish, with no distinctive odor or taste. The gills attach to the stem in an adnate arrangement, are pale yellowish in color, and are spaced subdistantly apart. The sturdy central stem (stipe) measures 10 to 20 mm (0.4 to 0.8 in) long by 1 to 1.5 mm (0.04 to 0.06 in) thick, is roughly equal in thickness from top to bottom, and ranges in color from dark orange to yellowish. This species is classified as nonpoisonous, but is not confirmed to be edible. For microscopic features, the spores measure 7–9 by 4–5 μm, are smooth, elliptical, and range from weakly amyloid to inamyloid. Both pleurocystidia and cheilocystidia are present, and the spore print is white. Mycena crocea grows on hickory nuts and walnuts, and is distributed in eastern North America.