·        Parasitize and disfigure other fungi: gilled mushrooms, boletes, polypores, and cup and saucer fungi

·        Belong to a class of Ascomycetes (Flask Fungi) that produce flask-shaped to rounded sexual structures called perithicia

·        Others have an asexual stage prior to the sexual stage, which resembles white mold or yellow powder

·        Identification often requires microscopic examination