IIYUENOMYCETES. 



Sub-Genus CLIT0CY13E. 



Stem elastic, stuffed, outer coat compact, fibrous; gills attenua- 

 ted behind, adnate or decurrent ; pilous lor the most part plano- 

 dcpressed or iufundibuliform. Somewhat fleshy fungi growing 

 on the ground. 



Sub-Genus COLLYBM. 



Stem fistulose or pithy, outer coat cartilaginous ; gills free or 

 bluntly adnexed ; pileus sub-caraosc, plano-convex or depres- 

 sed ; margin at first involute. More or less epixylous. 



Sub-Genus MYCENA. 



Stem fistulose ; pileus sub-mcmbranaceo\is, campanulatc; mar- 

 gin never involute ; gills not decurrent, except by a tooth. 

 Graceful. Terrestrial or epixylous. 



Sub-Genus OMPHALIA. 



Stem cartilaginous ; pileus sub-mcmbranaceous ; gills truly 

 decurrent. 



Excentric, lateral, or sessile. 



Sub-Genus PLEUROTUS. 



Stem excentric, lateral, or none. Mostly growing upon wood. 



Seeies II. Hyporhodii. 



Spores rose-coloured. 



Gills quite free. 



Sub-Genus VOLVARIA. 



Volva distinct ; gills ventricose. Eesembling an Amanita, 

 with reddish spores. 



Sub-Genus PLUTEUS. 



Volva concrete with the epidermis of the pileus. 

 Gills toucldng the stem. 



Sub-Genus ENTOLOMA. 



Stem fleshy or fibrous ; gills bluntly rounded behind. Some- 

 what fleshy fungi generally growing on the gi'ound. 



Sub-Genus CLITOPILUS. 



Stem fleshy or fibrous ; gills attenuated behind ; sub-decurrent ; 

 pileus more or less depressed. 



Sub-Genus LEPTONIA. 



Stem cartilaginous, sinning ; gills adnexed , at length retreat- 

 ing; pileus thin; margin at first incurved. 



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