AMERICAN BOLETES 23 



This species was collected on the ground in sandy pine barrens 

 on the immediate coast at Newport, Oregon. Although grow- 

 ing in sand, the weather conditions were very humid. 



39. CERIOMYCES ZELLERI Murrill 



Pileus convex, firm, gregarious to subcespitose. 7-9 cm. broad; 

 surface dry, uneven, bay, covered with a delicate bloom which 

 disappears with age; margin regular, concolorous, somewhat pro- 

 jecting; context firm, cremeous, unchanging, drying easily, mild 

 and slightly mucilaginous to the taste; tubes irregular, of medium 

 size, pale-yellow to greenish-yellow, scarcely changing when 

 bruised; spores fusiform, smooth, ochraceous, averaging 12 

 X 4.5 At; stipe bulbous, solid, red to purple, white or yellow at 

 the base, more or less striate, furfuraceous, about 5 cm. long and 

 1.5 cm. thick. 



This species is very common about Seattle, Washington, on 

 rather dry banks in woods, and has also been found in California. 

 When fully mature, the bloom on the cap disappears and the 

 color is so dark that the sporophore is difficult to see unless a 

 glimpse of the yellow hymenium is obtained. 



40. CERIOMYCES PALLIDUS (Frost) Murrill 



Pileus circular, convex to plane or depressed, 5-12 cm. broad; 

 surface smooth, dry, glabrous, rather soft to the touch, pallid 

 or grayish-brown, slightly tinged with red at times; margin 

 even, regular, rather thin, fertile, concolorous or paler; context 

 white, becoming slightly bluish when wounded; tubes nearly 

 adnate, plane or depressed, rarely becoming free, of medium 

 length, very pale yellowish, becoming dark-flavous with age 

 from the ripe spores, changing to blue when wounded, mouths 

 small, angular to irregular, becoming uneven from the lengthening 

 of the thin dissepiments into tooth-like projections; spores 

 oblong-ellipsoid, smooth, ochraceous-brown, 10-13 X 4-5 M; stipe 

 usually slender, cylindric, tapering upward, glabrous, even, 

 nearly white, streaked with brown or red, at times tinged with 

 purple and flesh-color, often reddish within, especially near the 

 base, 6-15 cm. long, 7-15 mm. thick. 



Frequent in woods from New England to Alabama. 



41. CERIOMYCES SUBGLABRIPES (Peck) Murrill 



Pileus circular, rather thin, subconic or convex to nearly 

 plane, occasionally cespitose, 3-10 cm. broad; surface glabrous, 



