BOLETI OF THE UNITED STATES. 93 
soft, very viscid or glutinous when moist, slzghtly tomentose 
on the margin when young, soon glabrous or the margin 
sometimes remaining squamose, rarely squamose-spotted 
from the drying of the gluten, yellow, becoming dingy or 
less bright with age, sometimes vaguely dotted or streaked 
with bright red, flesh pale-yellow, less clear or pinkish-gray 
on exposure to the air; tubes plane or convex, adnate, 
rather large, angular, pale-yellow, becoming sordid-ochra- 
ceous ; stem slender, equal or slightly tapering upward, firm, 
not at all annulate, yellow, often pallid or brownish toward 
the base, marked with xumerous brown or reddish-brown per- 
sestent glandular dots, yellow within; spores oblong or sub- 
fusiform, ochraceo-ferruginous, .00035 to .00045 in. long, 
.OOO16 to .0002 broad. 
Pileus 1 to 3 in. broad; stem 1.5 to 2.5 in. long, 2 to 4 
lines thick. 
Woods, swamps and open places, especially under or near 
pine trees. New York, Peck, Clinton. Minnesota, Arthur. 
This is one of our most common species. It is often asso- 
ciated with B. granulatus, from which it is easily distin- 
guished by its thinner more yellow pileus and more slender 
stem. As in that and other closely related species the stem 
and tubes exude a turbid juice which soon hardens and 
forms the granular dots or glandules seen on them. Some- 
times they are so numerous that they become confluent. 
By them and the viscidity of the pileus the fingers of the 
collector often become soiled and stained. The species is 
closely related to’ B. flavzdus, to which our plant has com- 
monly been referred by American mycologists, but from 
which it constantly differs in the character of the veil and 
the dots of the stem. In it the stem is dotted from top to 
base with persistent glandules, there is no appearance of an 
annulus and the veil is somewhat tomentose on the margin 
of the young pileus. Forthese reasons I have separated it 
from that species. Possibly some of the plants, referred 
above to B. flavzdus, belong to this species. A slight subacid 
