io8 
NEW YORK STATE MUSEUM 
Piletis 3 to 6 in. broad; stem 3 to 5 in. long, 8 to 12 lines thick. 
Under mountain laurel, Kalmia latifolia. Port Jefferson. July. 
The whole plant, except the upper surface of the pileus, is of a 
beautiful yellow color. The stem is sometimes more highly colored 
than the tubes. The species is referable to the tribe Edules. 
Boletus firmus Frost. 
Thin woods. Ballston lake. August. The spores in our plant are 
broader than the dimension given in the description. They are .0005 
in. long and .00024 broad. In other respects the agreement with the 
description is very close. 
Boletus fumosipes n. sp. 
Pileus convex or nearly plane, minutely tomentose, sometimes 
minutely rivulose, dark olive-brown, flesh whitish; tubes at first 
nearly plane, becoming convex with age, their mouths whitish when 
young, becoming yellowish-brown, changing to bluish-black where 
bruised; stem equal, solid, smoky-brown, minutely scurfy under a 
lens; spores purplish-brown, .0005 to .0006 in. long, .0002 to .00025 
broad. 
Pileus 1 to 2 in. broad; stem 1 to 2 in. long, 3 to 4 lines thick. 
Woods. Port Jefferson. . July. 
This species resembles small dark colored forms of B. chrysenteron, 
and this resemblance is still more noticeable in those specimens in 
which the pileus cracks in areas, for in these the chinks become red 
as in that species. The different color of the stem and tubes will at 
once separate these species. 
Boletus illudens n. sp. 
Pileus convex, dry, subglabrous, yellowish-brown or grayish- 
brown, sometimes tinged with red, especially in the center, flesh pallid 
or yellowish; tubes bright yellow, plane or somewhat convex when 
old, adnate, their mouths angular or subrotund, often larger near the 
stem; stem nearly equal, sometimes abruptly pointed at the base, 
glabrous, pallid or yellowish, coarsely reticulated either wholly or at 
the top only; spores oblong or subfusiform, yellowish-brown tinged 
with green, .00045 1° -0005 in. long, .00016 to .0002 broad. 
