Mycena multiplicata

Mycena multiplicata is a species of mushroom in the family Mycenaceae. First described as a new species in 2007, the mushroom is known only from the prefecture of Kanagawa, Japan, where it grows on dead fallen twigs in lowland forests dominated by oak. The mushroom has a whitish cap that reaches up to 13 mm (0.51 in) in diameter atop a slender stem 15 to 20 mm (0.59 to 0.79 in) long and 1 to 1.3 mm (0.039 to 0.051 in) thick. On the underside of the cap are whitish, distantly spaced gills that are narrowly attached to the stem. Microscopic characteristics of the mushroom include the amyloid spores (which turn bluish-black to black in the presence of Melzer's reagent), the pear-shaped to broadly club-shaped cheilocystidia (cystidia found on the gill edge) which are covered with a few to numerous, unevenly spaced, cylindrical protuberances, the lack of pleurocystidia (cystidia on the gill face), and the diverticulate hyphae in the outer layer of the cap and stem. The edibility of the mush......read more on Wikipedia.