544 Proceedings of the Ohio State Academy of Science. 



A.'- Plants not growing on wood. 



B.^ Pileus usually more than 5 cm. broad. 



C.^ Pileus not distinctly viscid, streaked with blackish 

 tibrils. S. 657; St. 183; H. 242; Mc. 240. 



F. -z'oiz'acea Bull. 

 C.- Pileus viscid, glabrous. 



D.^ Margin even; pileus whitish or grayish. S. 661 ; 



St. 185 ; Mc. 242 ['. sf^cciosa Fr. 



D.- Margin striate; pileus smoky-brown. S. 662; 



St. 185 ; ^Ic. 242 r. cjloioccphala Fr. 



B.- Pileus less than 4 cm. broad. 



C.^ Stipe pubescent with spreading hairs ; pileus with 

 minute hairy scales. S. 658 ; P. R. 29 139. 



F. puhescentipes Peck 

 C.^ Stipe without erect, spreading hairs ; pileus silky. 

 D.^ Margin of pileus striate; stipe solid. S. 16:70; 

 H. 241; B. T. 26: 64.... F. uinboiiata Peck 

 D.^ Margin even. 



E.^ Pileus umbonate; stipe stuffed. S. 663; St. 



186 ['. pavvnla Weinm. 



E.- Pileus not umbonate ; stipe solid. Berk. Out. 

 140 ; H. 242 F. pnsilla Pers. 



Note. 



V. parvula and A'. ])usilla arc regarded as synonyms by 

 some mycologists. 



PLUTEUS FR. 

 A.^ Pileus glabrous. 



B.^ Pileus fleshy, more than 5 cm. broad, whitish to brown 

 or brownish: margin even. S. 665; St. 187; P. R. 

 38:134: H. 237; Mc. 243; A. 138: M. 98. 



P. cerriniis Schaeff. 



B.' Pileus thin, usually less than 5 cm. broad; margin 



striate. 



C.^ Pileus cinnamon-brown. S. 676: Mc. 249; St. 190; 



M. 98 P. chrysofhaciis .Schaeff. 



