MURRILL : POLYPORACEAE OF NORTH AMERICA IS I 



Hymenophore annual, epixylous, sessile, zonate, anoderm, 

 hairy or glabrous ; context thin, white, flexible, fibrous, leathery ; 

 tubes thin-walled, white, at length splitting into irpiciform teeth in 

 several species, mouths polygonal or irregular; spores smooth, 

 hyaline. 



The species of this genus will be treated in a later number of 



this series. 



1 6. Coriolellus gen. nov. 



Type : Trametes Sepium Berk. 



Hymenophore small, dry, annual, epixylous, semi-resupinate ; 

 surface white, anoderm, usually azonate ; context white, thin, 

 fibrous to corky ; hymenium concolorous, tubes thin-walled, 

 usually large and irregular, dentate, but not irpiciform ; spores 

 smooth, hyaline. 



Coriolellus Sepium (Berk.) 



Trametes Sepium Berk. Lond. Jour. Bot. 6: 322. 1847. 



Described from specimens collected by Lea on dry fence-rails 

 in Ohio as follows : 



" Pilei effused at the base, reflexed above, laterally connate, at 

 first often attached by the vertex or triquetrous, pale wood-col- 

 oured, finely tomentose, marked with numerous darker zones. 

 Hymenium pallid, consisting of slightly sinuous pores about g^th 

 of an inch in diameter." 



This species occurs on various kinds of structural timber and 

 other dead wood, especially of deciduous trees, throughout most 

 of temperate North America. Oak and chestnut posts and poles 

 with the bark removed frequently supply the sporophores in great 

 numbers. Only a few collections are here mentioned : 



Canada, Macoun ; Connecticut, Hanmer ; New York, Under- 

 wood, Mrs. Livingston and Miss Crane ; New Jersey, Ellis ; Vir- 

 ginia, Murrill ; South Carolina, Ravenel ; Tennessee, Murrill ; 

 Ohio, Lloyd ; Kansas, Cragin. 



17. GRIFOLA S. F. Gray, Nat. Arr. Brit. PL 1: 643. 1821 

 Type : Boletus frondosus Dicks. 



Polypilus Karst. Rev. Myc. 3 9 : 17. 1881. Type: Boletus fron- 

 dosus Schrank. 



Meripilus Karst. Bidr. Findlands Nat. och Folk 37 : 33. 1882. 

 Type : Boletus gigantcus Pers. 



Cladomeris Quel. Ench. Fung. 167. 1886. Type : Polyporus 

 umbellatus Fr. 



