quite frequently in Ohio and is rather abundant on the hillsides about
Chillicothe, where it is frequently somewhat bulbous. The tinge of
brownish-red on the disk, and the short radiating ridges on the margin
of the pileus will serve to identify the plant. It is edible and fairly
good. Found on leaf-mold in rather damp woods from July to November.

_Tricholoma panaeolum. Fr._

[Illustration: Figure 48.--Tricholoma panaeolum.]

Panaeolum, all variegated. The pileus is from three to four inches broad,
deeply depressed, dusky with a gray bloom, hygrophanous; margin at first
inrolled, sometimes wavy or irregular when fully expanded.

The gills are quite crowded, adnate, arcuate, white at first, turning
to a light gray tinged with an intimation of red, notched with a
decurrent tooth.

The stem is short, slightly bulbous, tapering upward, solid, smooth,
about the same color as the cap. The spores are subglobose, 5-6.

I found the specimens in Figure 48 under pine trees, growing on a bed of
pine needles, on Cemetery Hill. They were found on the 9th of November.

Var. calceolum, Sterb., has the pileus spongy, deformed, thin, soft,
expanded, edge incurved, sooty-gray; gills smoky; stem excentric,
fusiform, very short.

_Tricholoma columbetta. Fr._

THE DOVE-COLORED TRICHOLOMA. EDIBLE.

[Illustration: Figure 49.--Tricholoma columbetta. One-third natural
size. Caps white. Stems bulbous.]

Columbetta is the diminutive of _columba_, a dove; so called from the
color of the plant. The pileus is from one to four inches broad, fleshy,
convex, then expanded; at first smooth, then silky; white, center
sometimes a dilute mouse color shading to a white, frequently a tinge of
pink will be seen on the margin, which is at first inrolled, tomentose
in young plants, sometimes cracked.

The gills are notched at the junction of the stem, crowded, thin, white,
brittle.

The stem is two inches or more long, solid, white, cylindrical, unequal,
often compressed, smooth, crooked, silky especially in young plants,
bulbous. Spores .00023 by .00018 inch. Flesh white, taste mild.

This is a beautiful plant, seeming to be quite free from insects, and
will remain sound for several days on your study table. I had no end of
trouble with it till Dr. Herbst suggested the species. It is quite
plentiful here. Dr. Peck gives quite a number of varieties. Curtis,
McIlvaine, Stevenson, and Cooke all speak of its esculent qualities.
Found in the w