48 AGARICINI. 



This is a beautiful specimen, from dark-brown to a light fawn color, 

 generally of a good size. I have found specimen measuring six inches 

 in diameter. Stipe stout and cartilaginous, etc. Habitat, open woods. 



C. radicatUS. Rehl. Rooting Collybia. 



Pileus, three to four inches broad, fuscous, olivaceous to 

 light yellow, glutinous when wet, umbonate. 



Gills, attenuated with a decurrent tooth, ventricose, shining 

 white. 



Stem, four to six inches high, smooth, glossy, striated sul- 

 cate, rooting deep with a spindle-shaped root. 



This is a common toadstool found nearly in every open wood in Penn- 

 sylvania, also in lawns. 



The diagnostic character is the long tapering root. It is easily recog- 

 nized when once known. 



C. confluens. Pers. Tuffed Collybia. 



Pileus, barely over an inch broad, pale tan color, crowded, 

 convex, plane, flaccid, margin thin, slightly striated. 



Gills, free at length, remote from the stem, very crowded, 

 narrow, linear, flesh color, then white. 



Stem, clothed with a dense villous down, hollow. 



Growing in woods on leaves. Common in Spring Creek woods. 



C. dryophylus. Bull. Oak-loving Collybia. 



Pileus, bay brown, one to two inches, convex, plane, 

 depressed. 



Gills, free, with a decurrent tooth, crowded, narrow, white. 

 Stem, yellowish, cartilaginous, smooth, very fistulous. 

 Common on oak leaves. 



Genus VII. MYCBNA. Fr. Syst. Myc. 



Stem fistulous, cartilaginous. Pileus, small, membraneous, 

 at first conico-cylindrical by reason of the margin being 



