136 BULLETIN OF THE NEW YORK STATE MUSEUM 
slightly reticulated at the top, glabrous, colored like or 
paler than the pileus, sometimes tinged with red; spores 
bright ferruginous-ochraceous, .00035 to .0005 in. long, 
.00016 to .0002 broad. | 
Var. maculosus. Pileus adorned with a few small irregu- 
larly scattered yellowish spots. 
Pileus 2 to 4 in. broad; stem 1.5 to 3 in. long, 4 to 8 lines 
thick. 
Thin woods. New York, Peck. New England, Frost. 
A variable species receding somewhat from the character 
of the tribe by its adnate tubes and scarcely bulbous stem. 
It is separated from the Calopodes by its even stem and 
stuffed tubes. In wet weather the margin of the pileus 
sometimes curves upward and then the stratum of tubes 
becomes very convex. The change of color in the wounded 
tubes and flesh is peculiar but it does not appear to be con- 
stant. The bright rich color of the spores is unusual and 
is suggestive of a mixture of ferruginous and Indian yel- 
low. Boletus flavoaureus Frost’s manuscript is this species. 
Boletus cestivalis Fr. 
SuMMER BOLETUS 
Hym. Eur. p. 510. Syl. Fung. Vol. VI, p. 31 
Pileus convex or nearly plane, even, glabrous, whztzsh, 
granulose in dry weather, flesh yellow below, white above ; 
tubes nearly free, the mouths minute, equal, yellow; stem 
very thick, bulbous, even, glabrous, pale-yellow, reddish within 
at the base; spores elongated-oval, greenish-brown, rather ~ 
dark, .00045 in. long, .00016 to .o002 broad. 
Pileus 4 to 6 in. broad; stem 4 to 5 in. long. 
Woods and woodland pastures. Minnesota, /oknson. 
California, Harkness, Moore. 
