372 



MUSHROOMS, EDIBLE AND OTHERWISE 



Figure 302. Boletus griseus. Two-thirds 

 natural size. 



Boletus griseus. Frost. 

 The Gray Boletus. 



Griseus means gray. The pileus is 

 broadly convex, firm, dry, almost smooth, 

 gray or grayish black. The flesh is whitish 

 or gray. 



The tubes are attached to the stem and 

 slightly depressed around the stem, nearly 

 plane, their mouths being small, nearly 

 round, white or whitish. 



The stem is slightly unequal, tapering 

 downward, distinctly reticulated, whitish 

 or yellowish, sometimes reddish toward 

 the base. The spores are ochraceous- 

 brown, 10-14x4-5^. Peck. 



This plant, with us, grows singly and it 

 is infrequently found. I have found it 

 always in beech woods along Ralston's Run. 

 It is found in August and September. 





Figure 303. Boletus nigrellus. Two-thirds natural size. 



Boletus nigrellus. 

 Pk. 



The Blackish 

 Boletus. Edible. 



Nigrellus is a di- 

 minutive of niger, 

 black. The entire 

 plant is blackish 

 except the pore 

 surface. 



The pileus is 

 three to six inches 

 broad, rather 

 broadly convex or 

 nearly plane, dry, 

 blackish. The flesh 

 is soft and un- 

 changeable. 



