Species
Exidia nigricans (Warlock’s butter)
Exidia nigricans. Photo: (c) AnneTanne, some rights reserved (CC BY-NC-SA)
Exidia nigricans (common name Witches’ butter) is a jelly fungus in the family Auriculariaceae. It is a common, wood-rotting species throughout the northern hemisphere, typically growing on dead attached branches of broadleaf trees. It has been much confused with Exidia glandulosa.
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