■ 492 Murrill: Polvpokaceae of North America 



Daeda/eoj)sis Schroet Krypt. Fl. Schles. 3: 492. 1888. Type: 



Boletus confragosits Bolt. 



Hymenophore epixylous, ' usually large and annual, sessile, 

 applanate to ungulate; surface anoderm, glabrous, often zonate : 

 context white or wood-colored, rigid, woody or punky : hymenium 

 normally labyrinthiform, but varying to lamellate and porose in 

 some species : spores smooth, hyaline. 



Species : A. quercimis L., A. juniperimis Murr., A. confragosits 



(Bolt.) Murr., A. Aescidi (Schw.) Murr., A. dcplanatus (Fr.) Murr. 



[See Bull. Torrey Club 32 : 83-95. 1905.] 



2. CERRENA S. F. Gray Nat. Arr. Brit. PL i : 649. 1821 



Type : Boletus ludcolor (Bull.) Bolt, 

 Phyllodontia Karst. Hedvvigia 22: 163. 1883. Type: Phyllo- 



dontia Magnnsii Karst. 



Hymenophore small, epixylous, sessile, conchate, annual ; sur- 

 face anoderm, hairy, zonate or sulcate ; context thin, white, fibrous, 

 flexible ; hymenium at first labyrinthiform, soon becoming irpici- 

 form from the splitting of the dessepiments ; spores smooth, 

 hyaline. 



Species : C. ludcolor (Bull.) Murr. [See Bull. Torrey Club 32 : 



9;-99- 



3. LENZITES Fr. Q,K:n. Hymen. 10. 1836 



Type: Daedalea betulina (L.) Fr. 



Hymenophore small, annual, epixylous, sessile, conchate : sur- 

 face anoderm, usually zonate and tomentose ; context white, 

 coriaceous, flexible ; hymenium lamellate, the radiating gill-like 

 dissepiments connected transversely at times, especially in youth ; 

 spores smooth, hyaline. 



Species : Z. betulina (L.) Fr., Z. ciibcnsis B. & C. [See Bull. 

 Torrey Club 32 : 95-97. 1905, 



New York Botanical Garden. 



