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 elastica, Buff. Reduced. See page I42.

Helvella lacunosa, Holm. Reduced See page 143

Helvella lacunosa, Holm. Reduced See page 143-.

Mitrula vitellina, sacc, var irregularis, Pk. (edible). Reduced.

Mitrula vitellina, sacc, var irregularis, Pk. (edible). Reduced.