Noun | 1. | Helvellaceae - family of false morels or lorchels; some are edible and some are poisonous fungus family - includes lichen families order Pezizales, Pezizales - order of mostly saprophytic fungi having cup-shaped ascocarps genus Morchella, Morchella - genus of edible fungi: morel false morel - a fungus of the family Helvellaceae lorchel - a large fungus of the family Helvellaceae genus Helvella - type genus of the Helvellaceae genus Discina - a genus of fungi of the family Helvellaceae with a cup-shaped or saucer-shaped fruiting body and ornamented spores genus Gyromitra - a genus of fungi of the family Helvellaceae with a fertile portion that is tan to brown |