Section B, without cap.
Section A is divided into four classes:
I. Mushrooms with radiating gills beneath caps, gill-bearing
mushrooms (Agarics).
II. With pores or tubes beneath caps (Polyporei).
III. With spines or teeth beneath the cap or branches (Hydnei).
IV. Where the spore-bearing surface beneath the cap is even, smooth,
or slightly wrinkled (Thelephorei).
Section B is divided into two classes:
I. Plants club-shaped and simple, or bush-like and branched
(Clavariei).
II. Plants gelatinous and irregular (Tremellinei).
SECTION A.
Class I. Key to Gill-bearing Mushrooms (_Agarics_).
1. Plants fleshy, soon decaying, 2.
Plants leathery, woody, persistent, 12.
2. Juice milky, white, or colored, Lactarius.
Juice watery, 3.
3. Stem central, or nearly so, 4.
Stem lateral, eccentric or wanting, 11.
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