3IABAS5UUS. 153 



* Base of stem woolly or strigcse. 



** Base of stem naked, often composed of twisted inter- 

 woven fibres. 



B. Tergim. 



Stem Tooting, distincily tubular, not fibrous, evidently 

 cartilaginons ; gills separating from tbe stem and becoming 

 free; pilens thinner than in the previous section, hygro- 

 phanons, sometimes even, sometimes with the margin 

 striate. 



* stem woolly below, glabrons above. 



** Stem (at least when dry) everywhere covered with a 

 fine pminose down. 



C. Calopodeg. 



Stem short, not rooting, often with a floccose or downy 

 tnbercnlar base; pilens convex and with the margin in- 

 curved, then expanded and more or less depressed, and in 

 this condition -the gills, that are typically adnate, become 

 somewhat decurrent. 



On twigs, branches, &c. ; gregarious, dry. 



* Stem very glabrous upwards, shining, base not swollen. 



** Stem covered with fine pminose down, base somewhat 

 tuberculose. 



n. ilTCESAEH. 



Stem homy, fistolose but often filled with pith, tough, 

 dry, corticate, mycelium rhizomorphoid, not floccose ; pileus 

 somewhat membranaceous, campanulate then expanded, 

 znargin at first straight and pressed to the stem. 



A. ChordalesJ' 



Stem rigid, rooting or adnate by a dilated base; pileus 

 campanulate or convex. 



The Mycena type of structure evident. 



