54 TWENTY-SIXTH REPORT ON THE STATE MUSEUM. 
Ground in woods. Croghan. September. 
The watery spots of the pileus resemble those of Ag. marmoreus. 
They often disappear as the plant becomes dry. 
Agaricus (Cirrocysr) Trunoicota Peck. 
Pileus thin, firm, expanded or slightly depressed in the center, 
smooth, dry, Shiites lamelle narrow, thin, crowded, adnate-decur- 
rent; stem equal, stuffed, smooth, often eccentric and curved, 
whitish. 
Plant 1’ high, pileus 1’ broad, stem 1” thick. 
Trunks of frondose trees, especially maples. Croghan. Sep- 
tember. 
Agaricus (CLirocyBE) suBzonALIS Peck. 
Pileus thin, centrally depressed or subinfundibuliform, marked 
with two or three obscure zones, with a slight appressed silkiness, 
pale yellow; lamelle close, narrow, equally decurrent, some of | 
them forked, pallid or yellowish; stem equal, slightly abr: : 
stutied, pale yellow. 
Plant 2’ high, pileus 2’-3' broad, stem 2"-4" thick. 
Ground in woods. Croghan. September. 
Agaricus (CiirocyBe) Grrarpianus Peck. 
Pileus thin, funnel-form, hygrophanous, striatulate when moist, 
brown, rough with scattered blackish points; lamelle decurrent, 
close, a little paler than the pileus, some of them forked; stem 
rather long, flexuous, smooth, stuffed, concolorous, white at the 
base. 
Plant 2'-3' high, pileus 8"-12" broad, stem .5"-1" thick. 
Sphagnous marshes. Sandlake, Rensselaer county. New Paltz. 
une. 
- This is related to Ag. ectypoides, but it is much more slender 
and fragile, with a different habitat and without the fibrous radia- 
ting lines on the pileus of that species. 
Agaricus NIGER Schw. 
Decaying wood. Helderberg mountains. 
AGARICUS ConIGENUS Pers. 
Fallen pine cones. Croghan and New Scotland. September. 
Agaricus (CottysiA) cotoreus Peck. 
Pileus convex, subumbilicate, slightly fibrillose, hygrophanous, 
yellow, sometimes tinged with red, the margin exceeding the 
