I'm hopeless at Fungi ID but this is one I did know, I had no idea however why it had this name so I looked it up.

Auricularia auricula-judae, known as the Jew's Ear, Jelly Ear or by a number of other common names, is a species of edible Auriculariales mushroom found worldwide. Distinguished by its noticeably ear-like shape and brown colouration, it grows upon wood, especially elder. Its specific name is derived from the belief that Judas Iscariot hanged himself from an elder tree; the common name "Judas's Ear" eventually became "Jew's Ear"