BOLETI OF THE UNITED STATES Maigig 
white; tubes adnate, lemon-yellow, unchangeable ; stem 
slender, short, much thickened at the base in large speci- 
mens, yellowish streaked with brown, brownish within ; 
spores .0004 in. long, .o002 broad. 
Grassy woods. New England, Frost. 
The whole plant often reclines as if for support. 
Boletus parasiticus Butt. 
Parasitic BoLETUS 
Hym. Eur. p. 505. Syl. Fung. Vol. VI, p. 22 
Pileus convex or nearly plane, dry, silky, becoming gla- 
brous, soon tessellately rzmose, grayish or dingy-yellow ; tubes 
decurrent, medium size, golden-yellow , stem equal, rigid, in- 
curved, yellow without and within; spores oblong-fusiform, 
pale-brown, .0005 to .0006 in. long, .ooo16 broad. 
_ Pileus 1 to 2 in. broad; stem 1 to 2in. long, 2 to 4 lines 
thick. 
Parasitic on species of Scleroderma. New York, Gerard. 
New England, Sprague, Bennett. 
This species is very rare in this country. It is remarkable 
for its peculiar habitat. By a singular error Lotetus Betula 
Schw. was made a synonym of it by Fries. 
Boletus dictyocephalus wn. sp. 
| RETICULATE BOLETUS 
Pileus convex, glabrous, vetzculate with brown lines beneath 
the thin separable cuticle, brownish-orange, darker in the 
center and there tinged with pink, flesh white, unchangeable ; 
tubes nearly plane, slightly depressed around the stem, 
grayish-yellow, becoming brown where bruised; stem equal 
or slightly tapering at the top, solid, rrmose, squamulose- 
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