A second family Helvellaceae contains three important genera, Morchella, Gyromitra, and Helvetia, in which are the largest and most highly prized spore-sac fungi known. They are distinguished from the earth-tongues by the cap-like form of the spore body or ascoma, but especially by the character of the spore-sac, which opens by a little lid instead of by a simple pore.
Cir-ci'-nans Vi'-tel-li'-na Gy'-ro-mi'-tra
MIt'-ru-la Mor-keT-la Hel-vel-13
* This species is also described under the names Geoglossum irregulare and Geoglossian vitellinnm.
Helvella elastica, Buff. Reduced. See page I42.
Helvella lacunosa, Holm. Reduced See page 143-.
Mitrula vitellina, sacc, var irregularis, Pk. (edible). Reduced.