MURRILL : POLVPORACEAE OF NORTH AMERICA 635 



specific rank from the varietal distinction accorded it by Persoon. 

 In describing P. Burtii from plants collected on birch in Vermont, 

 Peck says " This fungus is closely allied to Polyporus adustus, of 

 which it might easily be considered a mere variety." 



The pallid pileus and small-pored, dark hymenium, which looks 

 as though it had been too near to a forest fire, are well known to 

 most collectors. In its resupinate forms it is not easily distin- 

 guished from P. dichrous and from Gloeoporus conchoidcs. The 

 spores are smooth, hyaline, ellipsoid-allantoid, 3-5x1.5—2.5/^. 

 Specimens are abundant on all kinds of dead deciduous wood and 

 only representative ones will be listed here in order to show the 

 wide range of the species : 



Germany, Magnus ; Hungary, Diets ; Sweden, Murrill ; Eng- 

 land, Murrill ; Canada, Macoun ; Maine, Miss White, Richer, 

 Murrill; Connecticut, Miss White ; New York, Burnham, Earle ; 

 New Jersey, Ellis, Murrill ; Delaware, Commons ; Pennsylvania, 

 Banker, Sumstine; Virginia, Murrill ; North Carolina, Memmiuger ; 

 Georgia, Harper ; Tennessee, Murrill ; Florida, Lloyd ; Alabama, 

 Earle ; Louisiana, Langlois ; Ohio, Morgan; Missouri, Glatfeltcr ; 

 Kansas, Bartholomew ; Oregon, Carpenter. 



2. Bjerkandera fumosa (Pers.) Karst. 



Boletus fumosus Pers. Syn. 530. 1801. 



Polyporus fumosus Fr. Obs. Myc. 2 : 257. 18 18. 



Bjerkandera fumosa Karst. Medd. Soc. Faun, et Fl. Fenn. 5: 38. 



1879. 



This species appears to be fairly common throughout tem- 

 perate regions on various forms of deciduous wood. Those who 

 consider Boletus imberbis Bull., Polyporus holmiensis Fr. and Poly- 

 porus salignus Fr. forms of this species would undoubtedly include 

 Polyporus fragrans Peck in the same category. The typical plant 

 has round regular pores, more or less smoky, especially when 

 bruised, and usually splitting with age. Among the numerous 

 foreign and American specimens, the following may be mentioned : 



Austria, Bresadola ; Scotland, Berkeley ; England, Plowright ; 

 Canada, Macoun, Dearness ; New York, Shear ; New Jersey, 

 Murrill ; Pennsylvania, Everhart, Sumstine ; Delaware, Commons ; 

 Virginia, Murrill; Ohio, Morgan; Kansas, Bartholomew ; Mis- 



