26 AMERICAN BOLETES 



what ventricose, solid, white within, changing slightly to bluish 

 beneath the cuticle, 3-4 cm. long, 0.7-1 cm. thick, finely scabrous 

 or scurfy, avellaneous-umbrinous to fulvous, paler above, dis- 

 tinctly pale-bluish-green at the apex. 



Frequent in woods, especially on roadside banks, from New 

 York to the mountains of North Carolina and west to Kentucky. 

 It is readily recognized by the pale-bluish-green band at the 

 apex of the stipe. 



47. CERIOMYCES SORDIDUS (Frost) Murrill 



Pileus convex to nearly plane, about 5 cm. broad; surface 

 dry, subtomentose, dirty-dark-brown, margin entire; context 

 white, slightly tinged with green; tubes rather long, nearly 

 free, at first white, changing to bluish-green; spores ovoid to 

 ellipsoid, smooth, yellowish-brown, 10-12 X 5-6 /r, stipe equal 

 or slightly smaller at the apex, brownish marked with darker 

 streaks, usually greenish above, 5-7 cm. long, 1-1.5 cm - thick. 



Found at Brattleboro, Vermont, growing in recent excavations 

 in woods. 



48. CERIOMYCES COMMUNIS (Bull.) Murrill 



Pileus convex to expanded, depressed at times with age, 

 gregarious, 4-8 cm. broad, 1-2 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 mold); 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 M; stipe subcylindric, often contorted, tapering at 

 the base, flavous above, red or streaked with red below, longi- 

 tudinally furrowed, glabrous or minutely scurfy, solid, sometimes 

 yellow within at the base, 3-8 cm. long, 0.3-1.5 cm. thick. 



Extremely common in woods and on mossy banks at the 

 edges of woods throughout temperate North America, and 

 found also in the Bahamas. Edible, but somewhat mucilaginous. 



4. SUILLELLUS Murrill 



Hymenophore annual, terrestrial, centrally stipitate; surface 

 glabrous or nearly so, dry or slightly viscid; context white or 



