120 BULLETIN OF THE NEW YORK STATE MUSEUM 
and nearly glabrous, that the flesh is pale-yellow but that 
he has not observed any bluish tinge, and that the spores 
are olive, fusiform, .0004 to .o005 in. long, .oco2 broad: 
Those of the European plant have been described as very 
pale ochre, almost white, .o0024 in. long, .ooo12 broad. 
Boletus mutabilis More. 
CHANGEABLE BOLETUS 
Jour. Cin. Soc. Nat. Sci. Vol: VII, p. 6, tab: 1 
Pileus convex, then plane or depressed, compact, dry, 
subtomentose, dvowz, flesh bright-yellow, promptly changing 
to blue where wounded; tubes adnate or subdecurrent, their 
mouths large, angular, unequal, some of them compound, 
yellow changing to greenish-yellow and guzckly becoming 
blue where wounded, stem stout, solid, flexuous, subsulcate, 
yellowish beneath the drown punctate scales, bright-yellow 
within; spores olive, fusiform, .00045 to .0005 in. long, .co02 
broad. 
Pilets’ 2.5 \to 47 im, broad; stem 2) tons in. loney omlines 
thick. 
Thick woods. Ohio, Morgan. 
A shade of yellow sometimes appears beneath the brown 
of the pileus, and as the plants grow old the pileus becomes 
blackish, glabrous and shining. The stem increases in thick- 
ness above and downward. | 
LACERIPEDES 
Stem elongated, coarsely pitted or deeply and lacunosely 
reticulated, the ridges somewhat intumescent in wet weather 
and more or less lacerated, giving a rough or shaggy appear- 
ance to the stem. 
The species of this tribe are few, very closely allied and 
so far as known are peculiar to this country. ; 
