50 



stem firm, equal or slightly tapering upward, Btulfed or hollow, squamose and 

 pallid below the evanescent ring, white and slightly f urf uraceous above ; 

 spores subelliptical, .00045' x .00025'. 

 Plant 3'-5' high, pileus 2'-3' broad, stem 3"-5" thick. 



Mossy base of maple trees in woods. Adirondack Mountains. 

 July and August. 



Under a lens the lamellae appear to be beaded on the edge with 

 minute milky globules. 



Agaricus (Plioliota) Acericola, Peck. 



Pileus broadly convex, glabrous, rugose-reticulated or corrugated, hygro- 

 phanous, yellow ; lamellae close, emarginate, grayish, then ferruginous- 

 brown ; stem equal or thickened at the base, hollow, fibrillose-striate, white ; 

 annulus large ; spores elliptical, .00035' x .00025'. 



Plant 3'-4' high, pileus 2'-3' broad, stem 3"-5" thick. 



Mossy trunks of maple trees in woods. North Elba. August. 



Agaricus (Pholiota) discolor, Peck. 



Pileus thin, convex, then expanded or slightly depressed, smooth, viscid 

 hygrophanous, watery-cinnamon and striatulate on the margin when moist, 

 bright ochraceous yellow when dry ; lamellae elose, narrow, pallid, then pale 

 ferruginous ; stem equal, hollow, fibrillose-striate, pallid ; annulus distinct, 

 persistent; spores elliptical, .00028' x .0002'. 



Plant subcaespitose, 2'-3' high, pileus 8 "-16" broad, stem 1" thick. 



Old logs in woods. Greig. September. 



The change in color when passing from the moist to the dry state 

 is very marked. 



Agaricus (Plioliota) cerasinus, Peck. 



Pileus broadly convex, smooth, hygrophanus, watery-cinnamon when moist, 

 yellow when dry ; lamellae close, emarginate, yellow, then cinnamon color ; 

 stem solid, equal, often curved, f urf uraceous at the top ; annulus slight, fuga- 

 cious ; flesh yellow ; spores elliptical, rough, .0003' x .0002'. 



Plant caespitose, 2'-4' high, pileus 2'-4' broad, stem 2'-4' thick. 



Old prostrate trunks of trees in woods. Sterling. August. 

 When fresh it has a strong cherry-like or amygdaline odor. 



Agaricus (Hebeloma) pallidomarginatus; Peck. 



Pileus brittle, broadly convex, sometimes irregular, smooth, hygrophanous, 

 brown with a pale margin when moist, ochraceous and subatomaceous when 

 dry ; lamellae close, thin, rounded and slightly emarginate at the stem, taper- 



