Panellus stipticus, commonly known as the
bitter oyster, the
astringent panus, the
luminescent panellus, or the
stiptic fungus, 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, a
(Wikipedia)