Polyporaceee 



where wounded. Stem subequal, firm, even, paler than the pileus. Boletus. 

 Spores ochraceous-brown, 10-1 2x4-5^. 



Var. Spraguei. (Boletus Spraguei Frost, Bull. Buff. Soc., p. IO2.) 

 Stem yellow above, minutely velvety below. 



PiletlS 3-5 in. broad. Stem 2-4 in. long, 4-10 lines thick. 



Woods. New York, Peck; Ohio, Morgan; New England, Frost. 



The species is separated from B. luridus by its dry pileus, white 

 flesh, even stem, which is neither reticulated nor dotted, and by its 

 smaller spores. I can not distinguish specimens of B. Spraguei received 

 from Mr. Frost, from this species. The name is scarcely appropriate, 

 for specimens are not always infested by larvae. Peck, Boleti of the U. S. 



I have not seen this species, therefore, have not tested it. CAUTION . 



B. subvelu'tipes Pk. velvety-stem. Pileus convex, firm, subgla- 

 brous, yellowish-brown or reddish-brown. Flesh whitish, both it and 

 the tubes changing to blue where wounded. Tubes plane or slightly 

 convex, nearly free, yellowish, their mouths small, brownish-red. Stem 

 equal or slightly tapering upward, firm, even, somewhat pruinose above, 

 velvety with a hairy tomentum toward the base, yellow at the top, red- 

 dish-brown below, varied with red and yellow within. Spores I5~i8x 



5-6/*. 



Pileus 2-3 in. broad. Stem 2-3 in. long, 4-6 lines thick. 



Woods. New York, Peck. 



This species resembles the preceding one in general appearance, but 

 it is very distinct by its much longer spores and by the velvety hairiness 

 toward the base of the stem. Peck, Boleti of the U. S. 



Boletus subvelutipes is common in some localities in Pennsylvania, 

 especially on the Springton Hills, in chestnut and oak woods. I have 

 frequently eaten it and found it excellent. Others should carefully 

 test it. 



B. fir'mus Frost firm. Pileus convex, very firm, slightly tomen- 

 tose, gray, often pitted. Flesh yellowish or deep-yellow, changing to 

 blue where wounded. Tubes adnate, deeply arcuate, unequal, yellow, 

 their mouths tinged with red. Stem solid, hard, very finely reticulated, 

 yellowish, reddish at the base. Spores 13x3^. 



Pileus 2.5-4 in. broad. Stem 2-4 in. long. 



Rich moist wood. New England, Frost. 



457 



