WordNet (r) 3.0 (2006):

cup morel
    n 1: an edible morel with a cup-shaped or saucer-shaped fruiting
         body can be up to 20 cm wide; the fertile surface inside
         the cup has wrinkles radiating from the center; can be
         easily confused with inedible mushrooms [syn: Disciotis
         venosa, cup morel]