MURRILL : POLYPORACEAE OF NoRTH AMERICA 



655 



Pt 



Jour. Bot. I : 103. 1849. 



46. 1878. 



Polyporus peudopargamauis Thnm. Myc. Univ. no. 1102. 

 Polvstictus Piisio Sacc. & Cub. in Sacc. Sylloge Fung. 6 : 265. 

 1888. 



Coriolus pargavumis Pat. Tax. Hymen. 94. 1 900. 



Originally described under the name in current use from spe- 

 cimens collected by the Franklin expedition on trunks of pine in 

 arctic North America. A year or two later Berkeley described 

 it from New Orleans, Louisiana, under the name of Polyponis 

 laccrahis ; then Montague found it among Menand's New York 

 collections and gave it the name of the collector. If the form on 

 conifers is specifically distinct from that on deciduous wood, then 

 Polyporus bahamciis Peck is a synonym o{ P. paiindics Schw. and 

 P. pargmncnus Fr., while P. laceratiis holds for the form on oak, 

 chestnut, q\.c. After examining growing specimens of both forms, 

 however, I think it best to consider them specifically the same. 



The above list does not complete the synonyms of this varia- 

 ble plant. According to Bresadola, Polyporus dispar Kalchbr. 

 and Polyporus siuiiilans Blonski should be added for the European 

 forms ; while there are probably half a dozen more from other 

 regions. Specimens from North America have been variously de- 

 termined as P. elongaUis Berk., described from Manila, P, 7iilghcri- 

 ensis Mont., described from India, and Daedalea fermginea 

 Schum., described from Denmark. 



This species occurs in great abundance in North America on 

 dead wood of oak, cherry, birch, chestnut, maple and other de- 

 ciduous trees, often covering the sides of dead standing or fallen 

 trunks, especially those of white oak, for almost their entire 

 length. It is also found on pine, hemlock, fir, etc., especially in 

 the northern forests where these trees abound, the typical host of 

 both the Schweinitzian and Friesian plants having been a pine 



trunk. 



It also occurs in Europe, where it appears to have been recog- 

 nized only recently under its Friesian name, Bresadola reports it 

 common in Hungary on poplar, oak and basswood and consid- 

 ers it cosmoplitan in one or more of its multiplied forms. 



