24 American Boletes 



subviscid when moist, rugose at times, usually so when dry, 

 reddish, pale-chestnut, grayish-brown, golden-brown, or rarely 

 darker-brown; margin regular, concolorous; context white or 

 whitish, unchangeable, of mild flavor; tubes plane or convex, 

 adnate or depressed, lemon-yellow, becoming greenish-yellow 

 or darker from the maturing spores, mouths circular to angular, 

 regular, rather small, edges entire; spores oblong-fusiform, 

 greenish-brown when fresh, soon changing to ochraceous-brown, 

 12-15 X 4-5 m; stipe central, cylindric, equal or slightly tapering 

 upward, light-yellow without and within, sometimes tinged with 

 red near the middle or lower down, striate but not reticulate, 

 ornamented with small, pallid, scurfy particles, which sometimes 

 partially disappear with age, 5-7 cm. long, 8-15 mm. thick. 



Rather common in woods from Nova Scotia to New York 

 and westward to the Mississippi River. 



42. Ceriomyces scabripes (Peck) Murrill 



Pileus thick, firm, broadly convex, about 15 cm. broad; 

 surface dry, glabrous, reddish-brown with a bloom; context 

 mild, though not pleasant to the taste; hymenium convex; tubes 

 adnate or slightly depressed, brown within, mouths minute, 

 circular, somewhat darker, becoming black on drying and 

 exuding a black juice with a strong odor; spores oblong-ellipsoid 

 or fusiform, smooth, yellowish-brown, 11-14X4-5^; stipe 

 stout, equal, grayish-white, adorned with numerous small, 

 projecting, black points, solid, but spongy within, about 10 cm. 

 long and 2-3 cm. thick. 



Found only at Bar Harbor, Maine, on rich soil in woods. 



43. Ceriomyces Roxanae (Frost) Murrill 



Pileus nearly plane, thin, circular, 3-7 cm. broad; surface 

 yellowish-brown, rarely yellow, clothed with minute, floccose 

 tufts appearing under a lens as numerous fine warts, which 

 partially disappear with age; margin regular, concolorous, 

 often curving or rolling upward on drying; context thin, white, 

 tinged with yellow; tubes at first adnate, at length depressed, 

 white when young, becoming pale-yellow, mouths small, regular, 

 angular, edges thin, entire; spores oblong-ellipsoid, ioX4m; 

 stipe central, cylindric, tapering upward, bulbous at times at 

 the base, yellow or yellowish-brown, striate at the apex, variable 

 in size, 4-7 cm. long, 5-15 mm. thick. 



Occasional in borders of woods in Maine, Vermont, and New 

 York. 



