+AMANITA.+

The origin of this name is doubtful. Galen, an ancient Greek physician,
is said to have given the name to some edible fungi (Stevenson). It is
distinguished as the only genus that has _both volva and ring_. The
young plant is enveloped by a universal veil which bursts at maturity.
The volva around the base of the stem is formed by the splitting or
bursting of the veil, and its different modes of rupture mark the
several species. It is sometimes shaped very prettily, and has the
appearance of a cup around the stem. It contains many poisonous as well
as edible mushrooms.

+LEPIOTA = a scale.+

This genus has a universal veil. The gills are free. Sometimes the ring,
or annulus, is movable on the stem. The cap is often covered with warts,
or the skin torn into scales, and the stem sometimes inserted in a cup
or socket.

+ARMILLARIA = ring or bracelet.+

There is no universal veil in this genus, only a partial one that forms
a ring, or sometimes only indicating the ring by scales. The species
usually grow on the ground.

+TRICHOLOMA = from two Greek words, hair and fringe.+

This genus is especially noted for its sinuate gills. They have a tooth
next to the stem. All grow on the ground and are fleshy. There are
sometimes fibrils which adhere to the margin of the cap, the remains of