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

Pileus fleshy, discoid.

** Pileus adnate throughout to the stem.

Morchella. Page [541].

Surface of pileus furnished with stout, anastomosing ribs bounding deep irregular pits.

Gyromitra. Page [546].

Surface of pileus covered with rounded, variously contorted folds.

Mitrula. Page [548].

Pileus subglobose or clavate, surface even.

Spathularia. Page [549].

Pileus flattened, running down the stem for some distance on opposite sides.