4 FUXGUS-FLOEA. 



Inocybe. — Stem flesh}- not cartilaginous ; cuticle of pileus 

 fibrillose or silky ; gills sinnato-adnexed. 



Bolbitius. — Pileus membranaceous ; gills soon deliques- 

 cent. 



Pluteolus. — Gills free. 



§§ Stem furnished with a volva or ring. 



Pholiota. — Piing present ; volva absent. 



Acetabularia. — Tolva present, ring absent. 



PAXILLL'S. Fries. 



Pileus symmetrical, excentric, or conchiform ; margin invo- 

 lute, more or less flesh}' ; stem central, excentric, lateral, or 

 absent, ex2:)anding at the apex without difierentiation into 

 the flesh of the pileus; gills decurrent, usually separated 

 from the flesh of the pileus by a thin differentiated horny or 

 cartilaginous layer, hence easily separated from the latter ; 

 spores dirty white or pale ferruginous. 



Paxillus, Fries, Gen. Hymen., p. 8 ; Cke., Hdbk., p. 285. 



The most pronounced characteristics of the present genus 

 are : the strongly involute pileus, the decurrent gills easily 

 removable from the flesh of the pileus, and the dingy or 

 ferruginous spores. 



ANAL YSIS OF THE SPECIES. 



I. Lepista. — Pileus entire, central ; spores dirty white 

 (rather ferruginous in P. imnaeohis). 



II. Tapixia. — Pileus usually excentric or resupinate ; 

 spores ferruginous. 



