y, colored like or a little paler
than the cap, purplish-gray within.

The spores are subferruginous, 12.5-15x5-6u. This plant is found in
open woods where there are beech trees. I found it frequently on
Cemetery Hill, Chillicothe. It is widely distributed, being found from
the east to the west. July and August.

_Boletus pallidus. Frost._

THE PALLID BOLETUS. EDIBLE.

Pallidus, pale. The pileus is convex, becoming plane or centrally
depressed, soft, smooth, pallid or brownish-white, sometimes tinged with
red. Flesh is white. Tubes plane or slightly depressed around the stem,
nearly adnate, very pale or whitish-yellow, becoming darker with age,
changing to blue where wounded, the mouths small. The stem is equal or
slightly thickened toward the base, rather long, smooth, often flexuous;
whitish, sometimes streaked with brown, often tinged with red within.
Spores pale ochraceous-brown. Pileus two to four inches broad. Stem
three to five inches long. _Peck_, Boleti of the U. S.

This species is very good, tender, and appetizing. I found it quite
abundant in the woods of Gallia County and near Chillicothe, Ohio.

_Boletus alveolatus. B. and C._

THE ALVEOLATE BOLETUS.

[Illustration: Figure 293.--Boletus alveolatus.]

Alveolatus is from _alveolus_, a small hollow, referring to the pitted
form of the pore-surface, which is one of the characters of this
species. The pileus is convex, smooth, polished, usually rich crimson or
maroon, sometimes varied with paler yellowish tints; substance solid,
changing to blue on being fractured or bruised, three to six inches
broad.

The tube-surface reaches the stem proper, undulate with uneven hollows,
maroon, the tubes in section being yellow beyond their dark red mouths.

The stem is usually quite long, covered with depressions or pitted
dentations, with intermediate coarse net-work of raised ridges, red and
yellow. The spores are yellowish-brown. I found this species in the
woods near Gallipolis, Ohio, also near Salem, Ohio. The bright color of
its cap will command the attention of any one passing near it. It has
been branded as a reprobate, but Captain McIlvaine gives it a good
reputation. Found in the woods, especially along streams, August and
September. Photographed by Prof. H. C. Beardslee.

_Boletus felleus. Bull._

THE BITTER BOLETUS.

[Illustration: _Photo by Prof. Atkinson._

Figure 294.--Boletus felleus. Natural size.]

Felleus is from _fel_, gall, b