476 Proceedings of the Ohio State Academy of Science. 



B.- Pileus medium, downy to hairy; lamellae orange-yellow. 



Claudopus (548) 

 A-. Stipe central or subcentral. 



B.^ Edge of lamellae obtuse; thick and veinlike. 



Cantharellus (531) 

 B.- Edge of lamellae acute. 



C} Universal veil leaving a volva at base of stipe. 



Volvaria (543) 

 C." Volva wanting. 



D.'^ Lamellae free ; pileus easily separating from 



stipe Pluteus (544) 



D.- Lamellae normally attached (in some becoming 

 nearly free) ; pileus confluent with stipe. 

 E.^ Lamellae decurrent. 



F.^ Stipe fleshy-fibrous.. .Clitopilus (546) 

 F.- Stipe cartilaginous ; pileus umbilicate. 



Eccilia (547) 

 E.- Lamellae not decurrent. 



F.^ Lamellae sinuate; stipe fleshy-fibrous. 



Entoloma (545) 



F.- Lamellae not sinuate; stipe cartilaginous. 



G.^ Pileus campanulate ; margin straight 



from the first ... Nolanea (547) 



G.- Pileus convexo-plane ; margin at first 



inrolled Leptonia (547) 



OCHROSPORAE. 



A.' Lamellae dissolving at maturity into a gelatinous or powdery 



condition Bolbitius (561) 



A.- Lamellae not dissolving. 



B.^ Lamellae readily separating from substance of pileus; 



margin of pileus inrolled Paxillus (560) 



B.- Lamellae not readily separating from pileus. 



C} Edge of lamellae obtuse ; thick and vein-like. 



Cantharellus (531) 



