568 Proceedings of the Ohio State Academy of Science. 



F.- 1 'hints nut i^rowing on trunks. 



G.' Spores smooth ; plants in rich soil 

 and grassy places ; pileus grayish- 

 brown to lead-colored. S. 1081 ; 

 St. 350; H. 333; A. 40: Mc. 373; 

 M. 174. 



C. atranicntariiis ( P>ull. ) Fr. 

 G.- Spores rough ; plants growing about 

 stumps in woods ; pileus grayish- 

 brown. S. 1082 ; P. R. 26 : 60 ; M. 



175 C. insignis Peck 



C.- Scales of pileus large, superficial ; formed by break- 

 ing apart of the universal veil; or pileus densely 

 villous or mealy-floccose. 

 D.^ Stipe annulate, at least when young ; plants on 

 stumps, soil or old leaves. 

 E.^ Scales of pileus ochraceous. S. 1082 ; P. R. 



25 : 79 ; M. 174 C. variegatus Peck 



E.- Scales of pileus white. S. 14: 158; H. 336; 



B. T. 22 : 491 C ebnlbosiis Peck 



D.- Stipe not annulate; plants usually on dung. 



E.^ Pileus cylindrical to conic. S. 1087; .St. 352; 



H. 338; Mc. 376 C. fiuctarius Fr. 



E.^ Pileus ovate to campanulate. 



F.^ Pileus and stipe downy-villnus, at least 

 when young, white ; lamellae adnexed. 

 S. 1088; St. 353; ^Ic. 378; AT. 175. 



C. nii'eiis (Pers.) Fr. 

 F.- Pileus bufif to darker, with large scales ; 

 stipe nearly glabrous ; lamellae free. 

 S. 16: 130 ;'b. T. 26:68. 



C. laccratiis Peck 



B.- Pileus with sparkling atoms or with mealy particles, at 



least when young. 



C.^ Lower part of stipe floccose-downy. plants on dung 



or ground. S. 1106; 'Mc. 382; P. R. 24:71; M. 



175 C. seniilaiiatfis Peck 



