130 THE POLYPORACEAE OF WISCOaJSIN. 



color was .a dark smoky-brown with an olive tinge, subtomentose near 

 the margin ; flesh thick, whitish with grayish-green colored spots. The 

 tubes were whitish when yonng but dark-gray or smoky in the older 

 specimens; they turn a dull greenish or bluish-green when bruised. 

 The specimens were nearly always much infected with larvae and often 

 exhaled a strong disagreeable odor. The species is closely related to 

 B. scoter. 



Series 2. Eucheoi. Tubes bright colored, mostly tellow. 



E. Luridi. Tubes depressed and free, stuffed at -first, yellowish,, 

 mouths red. 



Boletus vermiculosus Peck (Plate XXIII, fig. 80). 



Pileus broadly convex, thick, firm, dry, glabrous or very minutely 

 tomentose, brown, yellowish-brown or grayish-brown, sometimes tinged 

 with red, flesh white or whitish, quickly changing to blue where 

 wounded; tubes plane or slightly convex nearly free, yellow, their 

 mouths smaU, round, brownish-orange, becoming darker or blackish 

 with age, ch"anging promptly to blue where wounded; stem subequal, 

 firm, even, paler than the pileus ; spores ochraceous brown, 10 to 12.5 

 microns long, 4 to 5 microns broad. 



Pileus 8 to 12.5 cm. broad ; stem 5 to 10 cm. long, 8 to 21 mm. thick. 

 Woods. 



"This species," says Peck (21, 2, 8, p. 141), "is separated from B. lu- 

 ridus by its dry pileus, white flesh, even stem, which is neither reticu- 

 lated nor dotted, and by its smaller spores. I cannot distinguish speci- 

 mens of B. spraguei received from Mr. Frost, from this speciei^. The 

 name is scarcely appropriate, for specimens are not always badly in- 

 fested by larvae. ' ' 



Localities: Crandon and Ladysmith. None of the specimens was- 

 infected with larvae. The largest measured 7 cm. in diameter ; the stipe 

 11 cm. long, and 1.5 cm. thick. The pileus was reddish-brown, convex, 

 covered with yellowish-brown tomentum. The margin was acute with 

 a sterile yellow band underneath, about 2 mm. broad. The tubes were 

 nearly free, greenish-yellow with dark red almost maroon small round- 

 ish mouths. 



The stipe tapered upward, was yellowish above and reddish below, 

 somewhat paler than the pileus, solid. The flesh was whitish to yellow- 



