544 Pi'oceedings 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 

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



V. volvacea Bull. 

 C.^ Pileus viscid, glabrous. 



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



St. 185 ; Mc. 242 V. speciosa Fr. 



D.2 Margin striate; pileus smoky-brown. S. 662; 



St. 185 ; Mc. 242 V. gloiocephala Fr. 



B.^ Pileus less than 4 cm. broad. 



C} Stipe pubescent with spreading hairs ; pileus with 

 minute hairy scales. S. 658 ; P. R. 29 :39. 



V. 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. . . .V. umbonata Peck 

 D.^ Margin even. 



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



186 V. parvula Weinm. 



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

 140; H. 242 [/. pusilla Pers. 



Note. 



V. parvula and V. pusilla are 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. cervinus 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. chrysophacus Schaeff. 



