The mushroom Mycena silvaelucens,
whose Latin name means "forest light," (pictured, in daylight, top, and at night) was discovered on the grounds of an orangutan rehabilitation center in the Malaysian
section of the South Pacific island of Borneo, according to an October 2009 study.
Most glowing fungi flourish in closed-canopy forests of the world's tropical regions, such as Southeast Asia, the Caribbean, and South America--though researchers don't know why these habitats are ideal.
In an international team effort to catalog the world's luminescent mushrooms, San Francisco State University's Desjardin and colleagues have made an appeal to their fellow researchers: If you find a new fungi species, look at it in the dark too.
Desjardin has found a quarter of the 71 known glowing fungi species.
Photograph courtesy Brian Perry, University of Hawaii