74 TWENTY-FIFTH REPORT ON THE STATE MUSEUM. 
This Agaric is remarkable for its broad subdistant lamellee which 
are very thin and often found split transversely. Sometimes the 
thin pileus is also split and occasionally virgate. It frequently 
grows to a very large size and is usually much infested by insects. 
Agaricus (TricHotoma) vrgEscENs Peck. 
Pileus convex or expanded, sometimes depressed centrally, moist, 
smooth, dingy green, the margin sometimes wavy or lobed ; lamelle 
» close, gradually narrowed toward the outer extremity, rounded or 
slightly emarginate at the inner, white; stem subequal, stuffed or 
hollow, thick but brittle, whitish, sometimes tinged with green ; 
spores broadly elliptical, .0002' long, .00015' broad. 
Plant 3-5’ high, pileus 3-5’ broad, stem 6”—12” thick. 
Mossy ground in open woods. North Elba. July. » 
The dull smoky-green hue of the pileus is the distinguishing - 
feature of this species. 
_ Acaricus (TricnoLoma) FALLAX Peck. 
Pileus firm, convex or expanded, rarely depressed in the center, 
moist, smooth, dull saffron color; lamelle narrow, crowded, taper- 
ing toward the outer extremity, rounded at the inner, yellow; stem 
short, smooth, stuffed or hollow, usually tapering toward the base, 
colored like the pileus; spores minute, subelliptical, .00012' long. 
Plant gregarious, 1'-1.5' high, pileus 6"-15" broad, stem 1” thick. 
Ground under spruce and balsam trees. North Elba. July. 
(Plate 1, figs. 5-8.) 
This is a pretty little white-spored Agaric, liable from its general 
appearance to be mistaken for some species of Naucoria. I have 
seen it in very wet weather only. It appears to be allied to A. 
Cerinus. 
Agaricus stvopicus /7. 
Burnt ground in open places. North Elba. July. 
The odor of fresh meal is very distinct in our specimens, but the 
lamelle are not crowded. They are sometimes branched and have 
the eas reticulated. The spores are .0003' long, .0002’ 
broad. 
Agaricus (Cottysta) succosts Leck. 
Pileus firm, between cartilaginous and fleshy, campanulate or 
convex, minutely tomentose, cinereous or brownish-gray, the mar- 
gin exceeding the lamelle and incurved; lamelle slightly ascend- 
ing, thin, close, emarginate and slightly decurrent-toothed, tapering 
toward the outer extremity, whitish; stem firm, equal or slightly 
