The species was first described as Tremella auricula by Carl Linnaeus in his 1753 Species Plantarum[6] and later (1789) redescribed by Bulliard as Tremella auricula-judae.[1] In 1822, Swedish mycologist Elias Magnus Fries accepted Bulliard's epithet and transferred the species to Exidia as Exidia auricula-judae. In so doing, Fries sanctioned the name, meaning that the species epithet "auricula-judae" takes priority over Linnaeus's earlier "auricula".