CLITOCYBE. 403 



Differs from Omiihalia in the stem being of a fibrous texture 

 esternallj', and not compact and polisbed, or cartilaginous. 

 Tricholoma differs in the gills being sinuate or rounded 

 behind. Collybia also differs in tlie adnexed or almost free 

 gills being rounded behind, and in the cartilaginous stem. 

 Terrestrial, often clustered. 



ANALYSIS OF THE SPECIES. 



Group A. Pileus fleshy, often becoming pale when dry, 

 but not hygro]Dhanous. Flesh firm, not watery, nor splitting 

 into two layers. Differs from Series B. in becoming pale and 

 minutely silky when dry. 



I. DiSCIFOKMES. 



Pileus somewhat equally fleshy; convex, then plane or 

 depressed, obtuse ; gills at first adnate or regularly adnato- 

 decurrent. Normally solitary. 



* Pileus grey or brownish. 



** Pileus violet or rufescent. 



*** Pileus yellowish. 



**** Pileus greenish or pallid. 



***** Pileus white, becoming shining white. Eequire to 

 be carefully distinguished , from the white bygrophanous 

 species, and from the white species of Paxillus. 



II. DiFFOKMES. 



Pileus fleshy at the disc, margin thin, umbonate at first, 

 then expanded and depressed, irregular. Gills unequally 

 decurrent, long in some places, short in others ; sometimes 

 rounded or adnexed on one side, as in Tricholoma, Stem 

 somewhat cartilaginous outside, but fibrous, caespitose, often 

 connate, form very variable, sometimes quite solitary. 



2 D 2 



