The gills are adnate or nearly free, soft, membranaceous. Many species of Collybia will revive to some extent when moistened, but they are not coriaceous.

The stem differs in substance from the pileus, cartilaginous or has a cartilaginous cuticle, while the inside is stuffed or hollow. This is quite a large genus, containing fifty-four American species.

Collybia radicata. Rehl.

The Rooting Collybia. Edible.

Plate XIII. Figure 78.—Collybia radicata.

This, in its season, is one of the most common mushrooms in the woods. It grows in the ground, frequently around old stumps, sometimes on lawns.

Those in Figure 78 were found in the woods on the ground. One plant, as will be seen by the square, is a foot high.

It is easily recognized by its long root and flat cap. The root extends into the ground and will frequently break before pulling up. This root gives name to the species.