5 



aaa) Hymenophore confluent with the stipe and of the same texture ; gills 

 attached, in some becoming almost free in age. 

 b) Stipe fleshy to fibrous ; margin of pileus at first involute. 

 ENTOLOMA. Gills sinuate. 

 CLITOPILUS. Gills decurrent. 

 bb) Stipe cartilaginous. 



c) Gills not decurrent (or if so only by a minute tooth) easily separating 

 from the stipe. 

 LEPTONIA. Pileus slightly cenvex, margin at first incurved. 

 NOLANE A. Pileus bell shaped, margin straight, at first pressed close to the stipe. 



cc) Gills decurrent. 

 ECCILIA, Pileus umbilicate. 

 AA) Stipe excentric or none, pileus lateral. 



CLAUDOPUS. Growing on wood ; stipe when present continuous with the 

 hymenophore. 



SECTION 3. OCHROSPORAE or DERMINAE Fr. Spores yellowish brown 



or rusty brown. 

 A) Gills not separating readily from the hymenophore. 

 a) Universal veil not arachnoid (i. e., not spider-web like.) 

 b) Stipe central. 



c) With a volva or annulus. 

 PHOLIOTA. Stipe with an annulus. 

 LoceUina. Stipe with a volva. 



Pholiotella. Stipe separate from the hymenophore, annulus present, 

 cc) Volva and annulus wanting, 

 d) Gills free. 

 Pluteolus. Stipe subcartiiaginous, separate from the hymenophore ; margin of 

 pileus at first straight, 

 dd) Gills attached, 

 e) Gills not dissolving nor becoming powdery, 

 f) Stipe fleshy. 



INOCYBE. Cuticle of the pileus silky or bearing fibrils ; gills somewhat sinuate. 

 HEBELOMA. Cuticle of the pileus smooth, viscid ; gills somewhat sinuate ; 



spores argillaceous. 

 FLAMMULA. Gills adnate or decurrent. 



ff) Stipe cartilaginous or subcartiiaginous. 

 TUBARIA. Gills decurrent, stipe cartilaginous. 



NAUCORIA. Gills not decurrent, stipe cartilaginous ; margin pileus inflexed. 

 GALERA. Gills not decurrent, stipe subcartiiaginous, continuous with the hy- 

 menophore ; margin of the pileus straight from the first. 



ee) Gills dissolving into a .gelatinous or powdery condition, not 

 diffluent as in Coprinus. 

 BOLBITIUS. Pileus membranous, 

 bb) Stipe eccentric or none. 



