
Bitter Oyster
By day, this mushroom is unassuming, common, and mostly overlooked. But, it becomes a spectacular beauty at night with its bioluminescent gills, which incidentally make a decent nightlight when camping. This mushroom has a fan-shaped, wooly, white cap with an inrolled margin. Cinnamon-tan colored gills. Off-center, fuzzy, white stipe.

"Panellus stipticus", commonly known as the bitter oyster is a species of fungus in the family Mycenaceae, and the type species of the genus "Panellus". A common and widely distributed species, it is found in Asia, Australia, Europe, and North America, where it grows in groups or dense overlapping clusters on the logs, stumps, and trunks of deciduous trees, especially beech, oak, and birch.