Mycena chlorophos is a species of mushroom belonging to the Mycenaceae family. It is commonly found in damp, wooded areas and is notable for its bioluminescent properties, emitting a greenish glow in the dark. This phenomenon is due to the presence of luciferin, a compound that produces light when oxidized. The mushroom typically has a small, conical cap that can reach up to 3 cm in diameter, with a pale yellow to greenish color. Its gills are closely spaced and white, while the stem is slender and can grow up to 10 cm tall. Mycena chlorophos is not considered edible and should be approached with caution.