136 THIRTY-EIGHTH REPORT ON THE STATE MUSEUM. 
The granules are so minute and so close that they form a sort of plush 
on the pileus, more dense on the disk and radiating wrinkles than else- 
where. The clothing of the stem is finer, and has a velvety-pubescent 
appearance, but in some instances it breaks up into small scales or squam- 
ules. The color of the pileus and stem is usually some shade of 
yellow or brown, but occasionally a grayish hue predominates. The 
darker color of the granules imparts a dingy or smoky tinge to the gen- 
eral color. -The disk is often darker than the rest of the pileus. 
Pluteus nanus, Pers. 
Dwarf Agaric. Mealy Pluteus. 
Pileus somewhat fleshy, thin, convex or nearly plane, obtuse, rugulose, 
pulverulent or dingy-pruinose, brown ; lamellz close, ventricose, white 
or yellowish, then flesh-colored ; stem equal, solid, firm, striate, gla- 
brous, white or yellowish; spores subglobose, .cooz to .c0025 in. long. 
Plant about 1 inch high, pileus 6 to 12 lines broad, stem 1 line thick. 
Decaying wood and sticks. Not common nor abundant when it does 
occur. July to September. 
The small size, dingy-mealy or pulverulent pileus and small subglo- 
bose spores are characteristic of this species. Small specimens some- 
times have the margin of the pileus slightly striate. Large specimens 
may be distinguished from small forms of the preceding species by the 
glabrous stem. The European variety lutescens, which has the stem 
and lamelle yellowish, has not yet been observed in our State. Agart- 
cus pyrrhospermus, Bull. is given as a synonym. 
Pluteus tomentosulus, Peck. 
Woolly Agaric. 
Pileus thin, convex or nearly plane, subumbonate, mnutely villose or 
squamulose-tomentose, white ; lamelle rather broad, rounded behind, 
crowded, white then flesh-colored; stem equal, solid, striate, slightly 
pubescent or subtomentose, white; spores subglobose or broadly ellip- 
tical, .00025 to. 00032 in. long, .ooo25 broad, generally containing a 
single large nucleus. 
Plant 2 to 5 inches high, pileus 1 to 3 inches broad, stem 2 to 4 lines 
thick. - 
Decaying wood and prostrate trunks. Catskill mountains and Ganse- © 
voort. July and August. 
This rare but beautiful species appears to be the American analogue 
of the European. P. pellitws, Pers., which differs in its silky pileus 
and glabrous stem. The entire plant, when young, is pure white, but 
with advancing age the lamellz assume the usual pinkish hue and the 
margin of the pileus is sometimes tinged with the same color. 
Pluteus sterilomarginatus, Peck. 
Sterile-margined Agaric. 
Pileus thin, broadly convex or expanded, with a minute close-pressed 
tomentum, pinkish-white, the thin margin extending beyond the lamelle ; 
lamellez close, subventricose, minutely eroded on the edge, tapering 
