74 TWENTY-FIFTR REPORT ON THE StATE MuSEUM. 



This Agaric is remarkable for its broad subdistant lamellse 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 (Tricholoma) virescens PecTc. 



Pileus convex or expanded, sometimes depressed centrally, moist, 

 smooth, dingy green, the margin sometimes wavy or lobed ; lamellee 

 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. 



Agaricus (Tricholoma) fallax Peclc. 



Pileus firm, convex or expanded, rarely depressed in the center, 

 moist, smooth, dull safiron color ; lamellse narrow, crowded, taper- 

 ing toward the outer extremity, rounded at the inner, yellow ; stem 

 short, sm-ooth, stuffed or hollow, usually tapering toward the base, 

 colored like the pileus ; spores minute, subelliptical, .00012' long. 



Plant gregarious, I'-l. 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 sinopicus Fr. 



Burnt ground in open places. North Elba. July. 



The odor of fresh meal is very distinct in our specimens, but the 

 lamellse are not crowded. They are sometimes branched and have 

 the interspaces reticulkted. The spores are .0003' long, .0002' 

 broad. 



Agaricus (Collybia) succosus Peclc. 



Pileus firm, between cartilaginous and fleshy, campanulate or 

 convex, minutely tomeritose, cinereous or brownish-gray, the mar- 

 gin exceeding the lamellae and incurved; lamellae slightly ascend- 

 ing, thin, close, emarginate and slightly decurrent-toothed, tapering 

 toward the outer extremity, whitish ; stem firm, equal or slightly 



