47 



Decaying prostrate trunks of trees in woods. Portville and 

 Croghan. September, 



This is a very remarkable and somewhat aberrant species. In 

 color it resembles dark forms of Heydnum gelatinosum. The stem 

 is sometimes eccentric. The juice exudes from wounds as in species 

 of Lactarius. 



Agaricus (Collybia)myria(lopliyllus, Peck. 



Pileus very thin, broadly convex, then expanded, sometimes umbilicate, 

 hygroyhanous, watery -brown when moist, pale ochraceous or alutaceous when 

 dry ; lamellae very numerous, crowded, narrow, rounded at the stem and 

 slightly emarginate, brownish-lilac ; stem equal, smooth, stuffed, reddish-brown ; 

 spores subelliptical, minute, .00012' long. 



Plant subcaespitose, l'-1.5' high, pileus 8"-12" broad, stem .5" thick. 



Decaying wood and fallen branches in woods. Portville. Sep- 

 tember. 



The color of the lamellae is remarkable. 



Agaricus (Mycena) subcaeroleus, Peck. 



Pileus very thin, convex or campanulate, obtuse, smooth, striate, pale bluish- 

 green ; lamellae narrow, close, tapering outwardly, white ; stem slender, equal, 

 pinkish-white, slightly pruinose ; spores subglobose, .00025' in diameter. 



Plant caespitose, 2' high, pileus 4"-8" broad. 



Trunks of beech trees in woods. Adirondack Mountains. July. 

 The disk is more highly colored than the margin and the pileus 

 has a separable cuticle. 



Agaricus (Mycena) minutulus. Peck. 



Pileus convex or campanulate, smooth, striatulate, papillate ; lamellae broad, 

 subdistant, with a slight decurrent tooth ; interspaces reticulated by transverse 

 veinlets which descend on the lamellae ; stem short, slender, firm, smooth or 

 sprinkled with minute mealy particles. 



Plant gregarious, white throughout, 8"-12" high, pileus 2"-4" broad. 



Bark of prostrate trunks in woods. Portville. September. 



Agaricus (Mycena) roseocandidus, Peck. 



Pileus convex or broadly campanulate, subpapillate, striate nearly to the 

 apex, white or rosy-red ; lamellae close, uncinate, colored like the pileus ; stem 

 slender, smooth, white. 



Plant 2' high, pileus 4"-G' broad. 



