Murrill: Polyporaceae of North America 635 



specific rank from the varietal distinction accorded it by Persoon. 

 In describing P, Biirtii 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 hymcnium, which looks 

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

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

 guished from P. dichrous and from Gloeoportis 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 representativ^e ones will be listed here in order to show the 

 wide range of the species : 



Germany, Magmts ; Hungary, Diet::: ; Sweden, Murrill ; Eng- 

 land, Murrill; Canada, Maconn ; Maine, Miss White ^ Ricker^ 

 Murrill ; Connecticut, Miss White ; New York, Burnham^ Earlc ; 

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

 Banker^ Sttmstine; Virginia, Murrill ; North Carolina, Memminger ; 

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

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

 Kansas, Bartholo)neiv ; Oregon, Carpenter. 



2. BjERKANDERA FUMOSA (Pcrs.) Karst. 



Boletus fumosiis 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 iviberbis Bull., Polyporus holmiensis Fr. and Poly- 

 porus salignus Fn forms of this species would undoubtedly include 

 Polyporus fragrans Peck in the same category. The typical pliht 

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



bruised, and usually splitring with age. Among the numerous 

 foreign and American specimens, the following may be mentioned : 

 Austria, Bresadola ; Scotland, Berkeley; England, Ploivright ; 

 Canada, Macoun, Dearness ; New York, 5//^^;'/ New Jersey, 

 Murrill; Pennsylvania, Everhart , Smnstine ; Delaware, Comwons ; 

 -Virginia, Murrill; Ohio, Morgan; Kansas, Bartholomm^ ; Mis- 



