uarely against the
stem; quite large, angular, pale yellow, becoming a dull ochraceous.

The stem is slender, equal or tapering upward, firm, with no trace of a
ring; yellow, often brownish toward the base, covered with numerous
brown or reddish-brown quite persistent granular dots; yellow within.
The spores are oblong, ochraceous-ferruginous, 9-11x4-5u.

The veil is only observed in the very young specimens. Only caps are
good to eat. The specimens were photographed for me by Dr. Kellerman.

_Boletus Morgani. Pk._

MORGAN'S BOLETUS. EDIBLE.

[Illustration: Figure 305.--Boletus Morgani. One-half natural size.]

Morgani is named in honor of Prof. Morgan.

The pileus is one and a half to two inches broad, convex, soft,
glabrous, viscid; red, yellow, or red fading to yellow on the margin;
flesh white, tinged with red and yellow, unchangeable.

The tube-surface convex, depressed around the stem, tubes rather long
and large, bright yellow, becoming greenish-yellow.

The stem is elongated, tapering upward, pitted with long and narrow
depressions, yellow, red in the depressions, colored within like the
flesh of the pileus. The spores are olive-brown, 18-22u, about half as
broad. _Peck._

This plant is found in company with B. Russelli, which it resembles very
closely. Its smooth, viscid cap and white flesh will distinguish it. Its
stem is much more rough in wet weather than in dry. The peculiar color
of the stem will help to identify the species. I found it frequently on
Ralston's Run, near Chillicothe. It is found in many of the states of
the Union. July and August.

_Boletus Russelli. Frost._

RUSSELL'S BOLETUS. EDIBLE.

[Illustration: Figure 306.--Boletus Russelli. One-half natural size.]

The cap is thick, hemispherical or convex, dry, covered with downy
scales or bundles of red hairs, yellowish beneath the tomentum, often
cracked in areas. The flesh is yellow and unchangeable.

The tubes are subadnate, often depressed around the stem, rather large,
dingy-yellow, or yellowish-green.

The stem is very long, equal or tapering upward, roughened by the
lacerated margins of the reticular depressions, red or brownish red. The
spores are olive-brown, 18-22x8-10u.

The pileus is one and a half to four inches broad, the stem is three to
seven inches long, and three to six lines thick. This is distinguished
from the other species by the dry squamulose pileus and the color of the
stem. The latter is sometimes