40 [ ASSEMBLY 
Pileus 2 to 3 in. broad, stem 8 to 18 lines long, 4 to 6 lines thick. 
Pastures. Day, Saratoga county. July. 
The species is closely related to A. prunulus. It has a farinaceous 
taste but no odor. Its shorter spores, its pileus without any pruinosity 
and appearing slightly scaly on the disk and tinged with tan color 
will readily distinguish it from that species. A. prunulus grows 
in woods in autumn, this species in pastures in midsummer. It is 
solitary or gregarious. 
Agaricus (Nolanea) fuscogriseéllus, 7. sp. 
Pileus submembranous, convex, conic or campanulate, either with 
or without a central papilla, hygrophanous, grayish-brown, and 
striatulate when moist, paler and shining when dry, but the disk or 
papilla often remaining dark-colored; lamellz moderately close, 
subventricose, whitish, then flesh-colored ; stem slender, brittle, glab- 
rous, hollow, slightly pruinose, or mealy at the top, pallid or livid, 
with a white mycelium at the base; spores irregular, .0004 in. long, 
.0003 broad. 
Pileus 6 to 12 lines broad, stem 1.5 to 3 in. long, 1 to 2 lines thick. 
Mossy ground in open places. Adirondack mountains. Aug. 
This is more slender than A. pascwws to which it is related, and its 
stem is not fibrous and silky. 1 
Agaricus formosus, /7. 
Woods and open places, especially under brakes, Pterts aquilina. 
Adirondack mountains. Aug. 
it closely resembles the very common A. asprellus, from which it 
may be distinguished by the yellowish hue of the pileus. 
Agaricus depluens, F’r. 
Decaying wood. Catskill mountains. Gansevoort and Sterling. 
July and August. 
Agaricus marginatus, Batsch. 
Decaying wood. Guilderland. Sept. 
Agaricus unicolor, /’r. 
Decaying wood. Adirondack mountains. Aug. In color and 
size this species bears a striking resemblance to A. laccatus, but its 
habitat and the character of the spores readily distinguish it. 
Agaricus blattarius, Fr. 
Woods. Adirondack mountains. Aug. 
Agaricus. calamistratus, 7’. 
Damp ground. Delmar. Sept. Our specimens had no decided 
odor, but the essential characters of the species, including the peculiar 
bluish color toward the base of the stem, were present. 
