The spores are 10–13×4µ. Peck, Boleti of the U. S.
I found some beautiful specimens in a mixed woods on the Edinger hillside, near Chillicothe. I located them here, but observing that this species was not common I sent some to Prof. Atkinson, who placed them under this species. August.
Boletus radicans. Pers.
The pileus is convex, dry, subtomentose, olivaceous-cinereus, becoming pale-yellowish, the margin thin, involute. Flesh pale-yellow, taste bitterish.
The tubes are adnate, their mouths large, unequal; lemon-yellow.
The stem is two to three inches long, even, tapering downward and radiating, flocculose with a reddish bloom, pale-yellow, becoming naked and dark with a touch.
The spores are fusiform, olive, 10–12.5×5µ. Peck, Boleti of the U. S.
I found these specimens in the same locality with the B. striæpes.
The olivaceous cap with its peculiar involute margin and its radiating stem will greatly assist in its determination. August.