Fruitbodies are swollen, gelatinous, purplish to smoky brown with violet tints, tightly clustered and form a complex, lobed mass, up to 4 cm across and several cm high. As the genus name suggests, this sac fungus looks like a jelly fungus (see Tremella). Widespread but not common, it fruits on debarked hardwoods, particularly Beech and Alder. To confirm its identity you should make a squash and look at it microscopically. It will have asci rather than basidia in the hymenium.