Xanthoconium affine (Peck) Singer 1944

Ceriomyces affinis (Peck) Murrill, Mycologia 1 : 149. 1909
Boletus affinis Peck, Ann. Rep. N. Y. State Mus. 25 : 81. 1873.
1 Boletus leprosus Peck, Bull. N. Y. State Mus. 8 : 135. 1889. (Type from North Carolina )
'? Boletus crassipes Peck, Bull. Torrey Club 27 : 19. 1900. (Type from Pennsylvania.)
Pileus convex to plane, gregarious or scattered, 5-9 cm. broad ; surface glabrous or nearly so, slightly viscid when moist, but usually dry, with a thin, separable cuticle which easily cracks or rubs off in spots, fulvous, pale-chestnut, ochraceous, or somewhat olivaceous ; margin rather obtuse, entire, slightly projecting beyond the tubes : context somewhat spongy, white, unchanging or sometimes slowly becoming yellowish, taste mild; tubes adnate to nearly free, about 1 cm. long, white or cremeous, becoming subferruginous when wounded or at the maturity of the spores, mouths somewhat uneven, 2-3 to a mm., subcircular to angular, stuffed when young : spores oblong, smooth, bright ferruginous-ochraceous, 8-12 X 4-5^ : stipe cylindric, tapering downward, usually slightly eccentric, rarely reticulate above, glabrous, white above and below, flesh-colored and more or less streaked
in the middle, spongy and white within, about 7 cm. long and 1.5 cm. thick.
Type locality : Greenbush, New York.
Habitat : In thin woods.
Distribution : Vermont to North Carolina and west to Indiana.