Geograph - photograph every grid square

It would seem to be Auricularia auricula-judae, an edible mushroom also known as Jew's ear, wood ear or jelly ear which can be found worldwide. It grows on dead wood, especially elder, and the brown fruiting body has a noticeably ear-like shape. Its name is derived from the belief that Judas Iscariot hanged himself from an elder tree and the common name "Judas's ear" eventually became "Jew's ear", while today "jelly ear" and other names are sometimes used. The fungus can be found throughout the year in temperate regions worldwide, where it grows upon both dead and living wood.