508 Proceedings of the Ohio State Academy of Science. 



MYCENA FR. 



A.^ Whole plant, especially stipe, with dark red juice. S. 291 ; 

 St. 141; H. 122; A. 98; yic. 130; M. 75. 



M. haematopoda Pers. 

 A.- Plants without red juice. 



E.^ Whole plant bright orange red, or fading to yellow ; 

 pileus viscid. S. 9: 38; H. 127; M. 74. 



M. Icaiana Berk. 

 B.' Plant not orange-red or bright yellow. 



C Stipe inserted. S. 302; St. 149; H. 125. 



M. corticola Schum. 

 C.- Stipe not inserted. 



D.^ Lrimellae violaceous, edge blackish denticulate; 

 pileus livid-purple to paler; stipe concolorous. 

 S. 251; St. 121; Berk. Out. 121. 



M. pelianthina Fr. 

 D.- Edge of lamellae not darker than the rest of 

 their surface, not denticulate. 

 E.^ Base of stipe with blue fibrils; pileus often 

 blue or bluish. S. 16: 29; P. R. 51: 284; 

 Oh. Nat. 11: 350... M. cyaneobasis Peck 

 E.- Pileus and stipe not as above. 

 F.^ Neither stipe nor pileus viscid. 



G.^ Pilei mostly 2.5 cm. or more broad. 



H.^ Plants pinkish-purple or lilac, or 



becoming paler; with odor of 



radishes. S. 256; St. 125; H. 



128; A. 95; M. 74. 



M. pura Pers. 

 H.- Pileus usually some shade of 

 gra}^, yellow or brown ; some- 

 times whitish. 

 I.^ Stipe firm, rigid, pileus not 

 hygrophanous. 

 J.^ Lamellae adnate-uncinate, 

 flesh-colored or whit- 

 ish ; pileus striate, usu- 



