58 BULLETIN N. Y¥. STATE MUSEUM. 
VIscIeELLES. Pileus covered with a viscose pellicle. Stem solid, 
neither bulbous nor reticulated with veins. Tubesadnate to the stem, 
rarely sinuate, of one color. Hym. Europ., p. 496. 
In this section the species have the pileus either viscid or glutinous 
when moist, and in most of them the viscid pellicle is separable from 
the flesh. The flesh, when cut or exposed to the air does not, with 
one exception, assume the bluish tints so often seen in some of the 
members of other sections, yet in some, dull-pinkish or more obscure 
tints appear. In mature piants it generally becomes soft, almost 
floccose or cottony in texture. The tubes are mostly adnate or even 
slightly decurrent. In rare instances they may be somewhat de- 
pressed around the stem. The pores are usually of medium or large 
size and frequently angular. The dissepiments are often uneven or 
dentate. The mouths are colored like the rest of the tubes. Yellow 
or ochraceous hues prevail, but the tubes when young are paler than 
when mature. The stem is not distinctly bulbous, is always solid 
and generally glabrous or merely dotted. It is annulate in some, 
naked in others. In several closely related central species of the 
group it, as well as the tubes, exudes, when young, drops of a thick, 
gummy fluid, which soon hardens, becomes darker and forms sugary 
granules or glandular dots. The color of the spores is by no means 
uniform, but it is some shade of ochraceous, ferruginous or brown. 
The first and last species here described are exceptional by their 
slight viscidity. The first is also exceptional by its universal tomen- 
tose-pulverulent veil. Several species are edible. Nearly all occur 
in regions inhabited by pine or other coniferous trees, and are want- 
ing in localities destitute of these trees. ) 
\ 
Synopsis of the Species. 
Stem annulate. Ms 
Stem not annulate. 6. 
1 Cuticle of the pileus red. 2. 
1 Cuticle of the pileus not red. 3. 
2 Pileus either wholly or on the margin yellow-pulverulent. B. Ravenelii. 
2 Pileus squamose. B. spectabilis. 
3 Young tubes whitish. B. Elbensis. 
3 Young tubes yellow. 4. 
4 Stem not dotted. B. Clintonianus. 
4 Stem dotted. 5. 
5 Stem 5 lines or more thick, annulus not glutinous. B. luteus. 
5 Stem less than 5 lines thick, annulus glutinous. B. subluteus. 
6 Stem dotted. ths 
6 Stem not dotted. ae 
