Auricularia auricula-judae
Auricularia auricula-judae, commonly known as wood ear, jelly ear or historically as Jew's ear, is a species of fungus in the order Auriculariales. Basidiocarps (fruit bodies) are brown, gelatinous, and have a noticeably ear-like shape.
Source: Wikipedia — Auricularia auricula-judae (CC BY-SA 4.0)