Murrill: Polyporaceae of North America 477 



Trametes malicola B. & C. Jour. Acad. Sci. Phila. II. 3 : 209. 

 1856. Described from specimens collected by Schweinitz on the 

 trunk of an apple-tree at Bethlehem, Pennsylvania, and determined 



populimis 



When 



his herbarium was examined by Berkeley and Curtis, this species 

 was described as new as follows : 



"Imbricatus, ligneus ; pileis dimidiatis postice decurrentibus 

 subvillosis subzonatis, ligneo-umbrinis ; poris mediis dissepimentis 

 crassis subtomentosis." 



8. BJERKANDERA Karst. Aledd. Soc. Faun, et Fl. 



Fenn. 5: 38. 1S79 



Polyp 



Merisiiia 



Gill. Champ. Fr. i: 6'^^. 1878. (Not Mcrisma Per- 

 soon.) Type : Boletus imberbis Bull. 

 Myriadoponis Peck, Bull. Torrey Club ii : 2j. 1884. Type: 

 Myriadoponis adustus Peck. 



Hymenophore annual, epixylous, sessile, anoderm, glabrous, 

 azonate, corky ; context white, tough or woody, not friable when 

 dry ; tubes thin-walled, more or less smoke-colored, mouths poly- 

 gonal ; spores smooth, hyaline. 



The species of Bjerkandcra will be treated in a future paper. 



9. TYROMYCES Karst. Rev. Myc. 3^:17. 1881 



Type : Polyporus chioneus Fr. 

 Leptoporiis Quel. Ench. Fung. 175. 1886. (Not Leptopora Raf. 



1809.) Type: Polyporus tephrolaiais ¥r. 

 Oligoporus Bref Unters. 8:114. //. 7. /. 12-22. 1889. Type: 



Oligoporus farhiosits Bref. 



Hymenophore annual, epixylous, sessile, anoderm, azonate, 

 glabrous or nearly so \ context white, fibrous, fleshy to fleshy- 

 tough, rigid and friable when dry ; tubes thin-walled, white or yel- 

 lowish, mouths polygonal; spores smooth, hyaline. 



The species of Tyromyces will be treated in a later number of 

 this series. 



10. TRAMETES Fn Gen. Hymen, ii. 1836, 



T}^pe : Polyporus suaveolais L. 



Hymenophore annual, epixylous, sessile; surface anoderm, 

 white, azonate ; context white, hom.ogeneous, coriaceous to soft- 



