American Boletes 19 



smooth, very pale yellowish, 8-9 X 3.5-4.5 m; stipe rather short, 

 thick, tapering downward to a small radicate base, 4-7 cm. 

 long, 1-2 cm. thick, nearly white, finely scurfy, sometimes 

 reddish-dotted, flavous and reticulate above, solid, firm and 

 white within. 



Found under beech trees in Philadelphia, Pennsylvania. 



29. Ceriomyces mirabilis Murrill 



Pileus convex, spongy, solitary or gregarious, reaching 12 cm. 

 in diameter; surface moist, bay, uniformly covered with con- 

 spicuous, projecting, conic, floccose, persistent papillae, which 

 give it somewhat the appearance of bread-fruit; margin project- 

 ing like the eaves of a house, showing a yellow membrane 2-3 

 mm. wide; context citrinous, slowly changing to incarnate when 

 bruised, very watery, drying with difficulty, tasteless ; tubes large, 

 greenish-yellow, uneven; spores fusiform, smooth, ochraceous- 

 mellous, 19 X 7 /It; stipe very bulbous, solid, bay and streaked 

 below, strongly reticulate and latericeous above, the apex colored 

 like the tubes, 15 cm. long, 1.3 cm. thick above, 3.5 cm. thick 

 below. 



This remarkable species was found several times in the vicinity 

 of Seattle, Washington, on the ground in woods. It is one of 

 the most difficult species to preserve, owing to its extremely 

 juicy consistency. It differs from nearly all other boleti in its 

 floccose covering, which resembles that found on the surface of 

 Boletellus Ananas and Strobilomyces strobilaceus, but the scales 

 are more rigid and conic in shape. The collector may readily 

 distinguish it from these two species by its bay color and the 

 absence of a veil. 



30. Ceriomyces illudens (Peck) Murrill 



Pileus convex, 3-7 cm. broad; surface dry, finely tomentose, 

 olivaceous, yellowish-brown or grayish-brown, sometimes slightly 

 tinged with red, especially in the center; context whitish or 

 yellowish, unchanging, rather spongy; tubes plane or convex in 

 mass, adnate to adnexed, bright-yellow to melleous without and 

 within, mouths large, angular or subcircular, usually larger 

 near the stipe; spores oblong or subfusiform, olive-green fading 

 to yellowish-brown tinged with green, 11-13 X 4-5 ;it; stipe 

 nearly equal, usually tapering at the base, glabrous, whitish or 

 yellowish to light-bay above, pale-yellow below, 3-7 cm. long, 

 5-10 mm. thick, coarsely reticulate entirely to the base in fully 

 developed specimens, but only at the apex in small plants. 



