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Fig. A. Genus 1. Agaricus (Mushroom).
A fungus having a pileus Pileus: the cap of a mushroom. or hat, growing horizontally, and having gills on the under-side. There are two divisions of this genus: first, those having the hat supported on a pillar or stem; second, those with a hat without a pillar (parasitic), adhering by one of its sides to other plants. The little figure at A represents the Agaricus integer.
Fig. B. Genus 2. Boletus (Touchwood).
A fungus growing horizontally, having pores or holes on the under-side. There are two divisions of this genus: first, those without a stem (parasitic) adhering laterally to other plants; second, those having an upright central stem or pillar. The figure at B represents the Boletus luteus.
Fig. C. Genus 3. Hydnum.
A fungus having a horizontal pileus, with awl-shaped soft prickles growing underneath, the pileus supported on a pillar. The figures at C represent the Hydnum repandum and Hydnum auriscalpum.
Fig. D. Genus 4. Phallus (Morel).
A fungus consisting of a hat and a pillar, with the hat being oval, smooth on the inside, and honeycombed or pitted on the outside. D represents the Phallus esculentus, or common edible Morel.