Agaricaceae 



IV. FRAGILI'PEDES. Stem fragile, juiceless, etc. None tested. 



V. FILI'PEDES. Stem thread-like, etc. 



Mycena. M. collaria'ta Fr. collare, a collar. Pileus % in. and more broad, 

 typically dingy-brown, but becoming pale, commonly gray-whitish, be- 

 coming brownish only at the disk, membranaceous, bell-shaped then 

 convex, somewhat umbonate, striate, when dry rigid, smooth, not soft 

 nor slightly silky. Stem about 2 in. long, tubed, tlircad-like but almost 

 i line thick, tough, dry, smooth, even or slightly striate under a lens, 

 becoming pale. Gills adnate, joined in a collar behind, thin, crowded, 

 hoary-whitish or obsoletely flesh-colored. 



The gills are somewhat distant when the pileus is expanded. There 

 is not a separate collar as in Marasmius rotula ; the gills are only joined 

 in the form of a collar, and remain cohering when they separate from 

 the stem. Fries. 



Spores 8-iox4-6/x B. 



New York. Old stumps and rotten logs. June. Peck, 23d Rep. 

 Mt. Gretna, Pa. Cespitose on decaying wood. July, September and 

 October. Mcllvaine. 



Very much like M. galericulata, but gills not connected by veins. 

 The caps usually have a pinkish hue, often brownish. The stems are 

 not as tender as the caps. The flavor is excellent. 



VI. LACTl'PEDES. Stem and gills milky, etc. 



M. hsema'topa Pers. Gr. blood ; Gr. a foot. Pileus about i in. 

 broad, white flesh-color, fleshy-membranaceous, slightly fleshy chiefly 

 at the disk, conical then bell-shaped, obtuse, nay convex and spuriously 

 umbonate, naked, even or slightly striate at the margin, which is at the 

 first elegantly toothed. Stem 2-4 in. long, i line and more thick, re- 

 markably tubed, rigid, normally everywhere powdered with whitish, 

 delicate, soft hairy down, sometimes, however, denuded of it. Gills 

 adnate, often with a small decurrent tooth, the alternate ones shorter, 

 in front disappearing short of the slight margin of the pileus, whitish 

 and wholly of the same color at the edge. 



Cespitose (very many of the stems conjoined and hairy at the base), 



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