Toadstools, mushrooms, fungi, edible and poisonous; one thousand American fungi / How to select and cook the edible; how to distinguish and avoid the poisonous, with full botanic descriptions. Toadstool poisons and their treatment, instructions to students, recipes for cooking, etc., etc.

by Charles McIlvaine; Robert K. Macadam

FAMILY.—HELVELLA´CEÆ.

Fleshy, waxy or gelatinous; hymenium or sac-bearing surface exposed at first, or at length more or less exposed. Where a distinct stem is present it is surmounted by a more or less definite pileus or the stem is expanded into a club-like head. In Peziza the definite stem is absent and the plant is seated on the supporting surface.

Many more genera than are noted below are included in Helvellaceæ, but are not known to contain edible species.

SYNOPSIS OF THE GENERA.

* Margin only or whole of pileus free from sides of stem.

Helvella. Page [536].

Pileus drooping, irregularly waved and lobed.

Verpa. Page [539].

Pileus drooping, regular, margin entire, thimble-shaped.

Leotia. Page [540].