io6 
NEW YORK STATE MUSEUM 
Hypholoma capnoides Fr . 
On and about spruce stumps and decaying wood of spruce. Adi¬ 
rondack mountains. September. 
Psathyra umbonata n. sp. 
Pileus submembranous, campanulate, umbonate, hygrophanous, 
purplish-brown and striatulate when moist, grayish-white when dry, 
even or slightly rugulose, atomate, the umbo commonly paler than 
the rest; lamellae rather broad, moderately close, ventricose, sub- 
adnate, brownish-red, becoming purplish-brown and finally almost 
black; stem slender, flexuose, hollow, white, commonly hairy-tomen- 
tose at the base and slightly mealy at the top; spores blackish-brown 
or almost black, .0005 to .0006 in. long, .0003 broad. 
Chip dirt. Lake Pleasant. July. 
The species is apparently related to Psathyra corrugis, but differs in 
the color of the pileus and of the young lamellae and in the flexuose 
stem. The umbo is very prominent and when the pileus begins to 
lose its moisture the umbo becomes very conspicuous, for it first loses 
color and becomes much paler than the rest, appearing like a whitish 
knob in the midst of a dark background. The margin of the young 
pileus is straight and sometimes shows vestiges of a slight grayish 
fibrillose veil. In dried specimens the pileus is apt to become sulcate- 
striate or radiately sulcate. 
Coprinus quadrifidus n. sp. 
y 
Pileus thin, at first oval, then campanulate, finally more or less ex¬ 
panded with the margin revolute, when young adorned with a super¬ 
ficial floccose-tomentose veil, which soon separates into evanescent 
flakes or scales and reveals the finely striate surface of the pileus, 
whitish becoming grayish or grayish-brown with age, the margin 
often wavy or irregular; lamellae broad, thin, crowded, free, at first 
whitish, then dark purplish-brown, finally black; stern equal or 
slightly tapering upward, hollow, floccose-squamulose, white, some¬ 
times with a slight evanescent floccose ring near the base; spores 
.0003 to .0004 in. long, .00016 to .0002 broad. 
Plant gregarious or caespitose; pileus 2 to 3 in. broad; stem 3 to 4 
in. long, 3 to 4 lines thick. 
