Four kinds are fungus, hairy fungus, wrinkled fungus and swallow fungus. The back surface of the fungus is arc-shaped, purple-brown to dark blue-gray, with sparse short hairs. The base of the villi is brown. The body of the fungus is cup-shaped in the early stage, gradually becoming ear-shaped to leaf-shaped, gelatinous, tough, cartilage after drying, mostly smooth, often with wrinkles at the base, 10-15cm in diameter, and shrinks strongly after drying. The infertile surface is grey-brown to reddish-brown, with downy hairs.