BOLETI OF THE UNITED STATES 137 
A large species, recorded as edible and said to be pleas- 
ant and delicate in flavor. I have seen no specimens of this 
nor of the three following species. | 
Boletus impolitus Fr. 
UNPOLISHED BOLETUS 
Hym. Eur. p. 509. Syl. Fung. Vol. VI, p. 30 
Pileus convex, dilated, flocculose, at length granulose- 
rivulose, unpolished, tawnzy-brown, flesh white or whitish, un- 
changeable, yellowish under the cuticle; tubes free, their 
mouths minute, yellow; stem stout, subbulbous, even, pudes- 
cent, pale-yellow, sometimes with a reddish zone near the top; 
spores oval or fusiform, pale greenish-brown, .0003 to .0004 
in. long, .0002 broad. 
Pileus 4 to 6 in. broad; stem 2 in. long. 
Oak woods. California, Harkness, Moore. 
This species is recorded as edible and said to be among 
the most delicious. It is evidently rare in this country. 
According to Quelet the spores are ellipsoid, papillate .0006 
to .0007 in. long. 
Boletus decorus Frost 
Decorus BoLEeTus 
Bull. Buff. Soc. 1874, p. 103 
Pileus convex, rather firm, tomentose, brownish tinged 
with red, the margin often darker colored, flesh white, un- 
changeable; tubes becoming free, yellow, changing to green 
where wounded, stem bulbous, minutely furfuraceous, 
browntish-red, the bulb sometimes white and attenuated at 
the base; spores .0005 in. long, .oo02 broad. 
Rich woods. New England, vost. 
