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.jyrumdus. 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) fuscogriseellus, n. sp. 



Pileus submembranous, convex, conic or campanulate, either with 

 or without a central papilla, hygrophanous, grayish-brown, and 

 striatulate when moist, paler and shining w^hen dry, but the disk or 

 papilla often remaining dark-colored ; lamellae moderately close, 

 subventricose, whitish, then flesh-colored ; stem slender, brittle, glab- 

 rous, hollow, slightly pruinose, or mealy at the top, pallid or livid, 

 Avith 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. pasGims to which it is related, and its 

 stem is not fibrous and silky. 



Agaricus formosus, Fr. 



Woods and open places, especially under brakes, Pteris 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 deplueiis, Fr. 

 Decaying wood. Catskill mountains. Gansevoort and Sterling. 

 July and August. 



Agaricus marginatus, Batsch. 

 Decaying wood. Guilderland. Sept. 



Agaricus unicolor, Fr. 

 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, Fr. 

 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. 



