Xerocomellus chrysenteron (Bull.) Šutara 2008

Ceriomyces communis (Bull.) Murrill, Mycologia 1 : 155. 1909
Boletus communis Bull. Herb. Fr. pi. 393 A,C. 1788.
Boletus chrysenier on Bull. Hist. Champ. Fr. 328. 1791.
Versipellis chry senteron Qu^l. Ench. Fung. 157. 1886.
Xerocomus chrysenteron Qu€l. Fl. Myc. Fr. 418. 1888.
Boletus fraternus Peck, Bull. Torrey Club 24 : 145. 1897. (Type from Alabama.)
Boletus umhrosus Atk. Jour. Myc. 8 : 112. 1902. (Type from New York.)
Pileus convex to expanded, depressed at times with age, gregarious, 4-8 cm. broad, 12 cm. thick ; surface dry, tomentose to floccose-squamulose, often rimose-areolate, variable in color, usually some shade of red or purple, fading to brown (very frequently attacked by a whitish mould); margin entire, fertile: context yellowish-white to flavous, reddish beneath the cuticle, usually changing slowly to greenish or bluish when wounded, especially near the tubes, taste mild ; tubes adnate, convex in mass, slightly decurrent, becoming much depressed at times with age, yellow or greenish-yellow, changing to greenish-blue when wounded, mouths large, angular, irregular, 1-2 to a mm., spores fusiform, smooth, olivaceous when fresh, fading to pale-brownish, 11-13 X 4-5 /^r stipe subcylindric, often contorted, tapering at the base, flavous above, red or streaked with red below, longitudinally furrowed, glabrous or minutely scurfy, solid, sometimes yellow within at the base, 3-8 cm. long, 0.3-1.5 cm. thick.
Type locality : France.
Habitat : Woods, especially on mossy banks.
Distribution : Temperate North America ; Bahamas ; also in :Europe.