Tylopilus felleus (Bull.) P. Karst. 1881

Tylopilus felleus (Bull.) P. Karst. Rev. Myc.
Boletus felleus Bull. Herb. Fr. pi. 379. 1787.
? Boletus modeslus Peck, Ann. Rep. N. Y. State Mus. 25 : 81. 1873. fTvPe from New VnrV l
Boletus ferrugineus Frost, Bull. Buffalo Soc. Nat. Sci. 2 : 104. 1874 i^onc.j
Dictyopus felleus Qu61. Ench. Fung. 159. 1886.
Rhodoporus felleus Qu61. Fl. Myc. Fr. 420. 1888.
Boletus subpunctipes Peck, Bull. N. Y. State Mus. 116: 19. 1907,
Pileus thick, convex, usually 8-15 cm. broad, sometimes reaching a diameter of
over 40 cm.; surface smooth, glabrous, variable in color, usually some shade of tan or chestnut, often pink or purplish when young ; margin entire, concolorous : context white, often tinged with pink where wounded, at first firm, but soft and yielding in older specimens, decidedly bitter, especially when young, sometimes losing its bitter taste with age ; tubes adnate, depressed, 1-2 cm. long, slender, white, colored at maturit}^ with the flesh-colored spores, mouths angular, of medium size, edges thin, entire : spores fusiform, smooth, flesh-colored, 8-11 X3-4/i : stipe cylindric, enlarged below, glabrous, subconcolorous, usually reticulate above, and sometimes entirely to the base, firm, solid, becoming spongy in large specimens, 5-12 cm. long, 1.5-2.5 cm. thick.
Type locality : France.
Habitat : On the ground in woods.
Distribution : Temperate North America and Kurope.