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

5. Astræus.

Inner peridium membranaceous; dehiscent at the apex by a single mouth; columella none; threads of the capillitium very long, much branched and interwoven.

6. Mitremyces.

Inner peridium cartilaginous, dehiscent at the apex by a stellate fissure; columella none; threads of the capillitium very long, much branched and interwoven.

II.—CORTICATÆ.

Outer peridium (cortex) a soft, fragile, more or less deciduous layer, often with external projections in the shape of warts, spines or scales.

(c) Peridium stipitate.

7. Tylostoma. Page 582.

Peridium membranaceous, dehiscent by a regular apical mouth; threads of the capillitium very long, much branched and interwoven.

(d) Peridium sessile, but with a more or less thickened base.