132 BULLETIN OF THE NEW YORK STATE MUSEUM 
Boletus separans Px. 
SEPARATING BOLETUS 
Rep. 25, p. 81 
Pileus convex, thick, glabrous, subshining, often pitted, 
lacunose or corrugated, brownish-red or dull-lilac, some- 
times fading to yellowish on the margin, flesh white, un- 
changeable; tubes at first nearly plane, adnate, white and 
stuffed, then convex, depressed around the stem, ochraceous- 
yellow or brownish-yellow and sometimes separating from 
the stem by the expansion of the pileus; stem equal or 
slightly tapering upward, reticulated either wholly or in the 
upper part only, colored like the pileus or a little paler, 
sometimes slightly furfuraceous; spores subfusiform, brown- 
ish-ochraceous, .0005 to .0006 in. long, .0002 to .00025 broad. 
Pileus 3 to 6 in. broad; stem 2 to 4 in. long, 6 to 12 lines 
thick. 
Thin grassy woods. New York, Peck. 
This large and fine species might, with almost equal pro- 
priety, be placed among the Calopodes on account of the 
adnate tubes and reticulate stem, but the young tubes, being 
white-stuffed, lead me to place it here. Freshly dried or 
drying specimens often emit a strong subacid odor. 
Boletus edulis But. 
EDIBLE BoLETUS 
Hym. Eur. p. 508. Syl. Fung. Vol. VI, p. 29 
Pileus convex or nearly plane, glaérous, moist, at first 
compact, then soft, variable in color, grayish-red, brownish- 
red or tawny-brown, often paler on the margin, flesh white 
or yellowish, reddish beneath the cuticle; tubes convex, 
nearly free, long, minute, round, whzte, then yellow and green- 
zsh, stem short or long, straight or flexuous, subequal or 
