628 Proceedings of the Ohio State Academy of Science. 



K.^ Pileus deep red; lam- 

 ellae rather nar- 

 row, floccose-cren- 

 ulate on edge. S. 

 474; M. B. 116: 

 89; Mc. 188; K. 

 83; H. 196. 

 R. purpurina Q. & S. 

 K.- Pileus variable in 

 c o 1 o r, purplish, 

 bluish, yellowish, 

 etc. ; lamellae 

 broad. S. 465 ; M. 

 B. 116:82; St. 2: 

 122; K. 74; H. 

 188; Mc. 198. 

 R. cyanoxantha (Schaeff.) Fr. 

 E.- Pileus without red or purple. 



F.^ Pileus white to yellow or brownish. 



G.^ Margin of pileus even or nearly so ; 



lamellae distant. 



H.^ Pileus very viscid. S. 17:33; 



M. B. 116:83; Oh. Nat. 10: 



177 R. earlei Peck 



H.^ Pileus not viscid, white. S. 459; 



St. 2: 118; Mc. 194; M. 186. 



R. lactca (Pers.) Fr. 



G.^ Margin of pileus deeply striate and 



tuberculate ; lamellae rather close. 



H.^ Pileus glutinous at least when 



young, usually more than 6 



cm. broad ; plants with amyg- 



daline odor. S. 467 ; M. B. 



116:85; St. 2:124; K. 78; 



Mc. 199; H. 186; M. 187. 



R. foetens (Pers.) Fr. 



