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.
