Mycena crocea

It was first described as Marasmius nucicola in 1925 but that name could not be used in Mycena. The mushroom is commonly known as the "walnut mycena" and was previously and commonly misidentified as Mycena luteopallens. The specific epithet crocea refers to the orange color. ==Description==

The cap is vivid yellow, conical to broadly convex cap and up to in diameter. When young the cap tends to be conical or bell-shaped becoming plane or flat at maturity. The margin is striated. The surface is moist, glabrous, and somewhat hygrophanous. The flesh is thin, pallid, and yellowish. The odor and taste are not distinctive. The gills have an adnate attachment and are a pale yellowish color. They are subdistantly spaced. The sturdy stem is long by thick. The stipe is central, equal (i.e., roughly equal in thickness at the top and bottom), and dark orange to yellowish. Microscopic characteristics The spores are 7–9 x 4–5 μm, smooth, and elliptical, and weakly amyloid to inamyloid. Pleurocystidia and cheilocystidia are present. The spore print is white. Similar species Mycena strobilinoides is similar to M. crocea, but is found in needle beds under conifers. Atheniella adonis has a fragile stem and a more reddish-pink coloration. Atheniella aurantiidisca has a conical cap. ==Habitat and distribution==

Mycena crocea are found on hickory nuts and walnuts in eastern North America. ==References==