Mycenaceae is a family of fungi that includes various species of mushrooms, commonly known as mycena. These fungi are typically small and have slender stems with caps that can be brightly colored or more subdued. They are often found in forested areas, growing on decaying wood, leaf litter, or soil. Members of the Mycenaceae family play an important role in the ecosystem by breaking down organic matter, which helps recycle nutrients back into the soil. Some species are bioluminescent, emitting a faint glow in the dark, which adds to their unique characteristics and ecological significance.