The pileus is from two to five inches in diameter, rounded convex, smooth, viscid when moist, minutely woolly, velvety or scaly, color from nearly white to almost black, the flesh white.
The tubes are free from the stem, white, long, mouths minute and round.
The stem is solid, tapering slightly upward, long, dingy-white; roughened with blackish-brown or reddish dots or scales, this being the most pronounced characteristic by which to distinguish the species; three to five inches long. The spores are oblong fusiform and brown.
Prof. Peck has described a number of varieties under this species, most of which depend on the color of the cap. All are edible and good.
This is a common plant, usually found in woods and shady waste places, from June to October. Photographed by Prof. H. C. Beardslee.
Boletus granulatus. L.
The Granulated Boletus. Edible.
Figure 283.—Boletus granulatus. One-half natural size.