REPORT ON EDIBLE EUNGI 1 895-99 l ^9 



Boletinus grisellus Pk. 



Grayish Boletinus 



PLATE 52, fig. 13-ig 



Pileus convex, becoming nearly plane, dry, slightly hairy squamulose, 

 whitish or grayish, flesh whitish ; tubes adnate or slightly decurrent, grayish, 

 becoming darker with age, the mouths rather large, angular ; stem equal or 

 slightly tapering upward, solid, whitish or pallid ; spores ferruginous brown, 

 oblong or elliptic, .0003 to .0004 of an inch long, .00016 to .0002 broad. 



The grayish boletinus grows under or near tamarack trees and occurs late 

 in the season. Our specimens were found in October. They were associated 

 with the showy boletus and the Elba boletus. The cap is dingy white or 

 grayish, sometimes tinged with yellow. The surface is not at all viscid and 

 is nearly naked, its adornments consisting only of a few hairdike fibrils or 

 hairy squamules. The flesh is white and unchangeable in color on exposure 

 to the air. The tubes are at first grayish or grayish white, but they become 

 brown with age. The stem is short, solid, whitish or pallid and often 

 slightly reticulated at the top by the decurrent walls of the tubes. When 

 young, there are traces of a slight, webby or fibrillose collar near the top, 

 but these soon disappear. The cap is i to 3 inches broad ; the stem 1 to 2 

 inches long, 3 to 5 lines thick. The plants are apparently very scarce, and, 

 though very good as an edible mushroom, they are not likely to be found 

 often or in great abundance. 



Boletus subaureus Pk. 

 Pale golden Boletus 



PLATE 6l , fig. 6-1 J 



Pileus broadly convex or nearly plane, glabrous, viscid, pale yellow, 

 flesh pale yellow ; tubes nearly plane in the mass, adnate or slightly decur- 

 rent, pale yellow becoming dingy ochraceous, their mouths small, subangular ; 

 stem short, stout, equal, solid, glandular dotted, yellow ; spores oblong or 

 subfusiform, .0003 to .0004 of an inch long, .00016 broad. 



The pale golden boletus belongs to a group of closely related species, 

 in which the specific distinctions are not strongly marked, but no dangerous 

 species is known among them, though not all are agreeably flavored. They 



