PLANTS OF NORTH ELBA 



219 



Fomes carneus Nees 



Dead or decaying wood of spruce. Common. The color of the 

 young pileus is similar to that of the pores, but it becomes darker and 

 brownish or even blackish with age. A rare form occurs in which the 

 pileus is zonate. 



Polystictus circinatus Fr. 



Mossy ground and specially in groves of young coniferous trees. It 

 is remarkable for the difference in texture between the upper stratum of 

 the pileus and the lower. 



Polystictus perennis (L.) Fr. 



Thin woods and clearings and banks by roadsides. Common. A 

 beautiful species when fresh and well grown, but the pileus fades with 

 age. 



Polystictus hirsutus ( Wulf.) Fr. 

 Dead wood of deciduous trees. Common and variable, 



Polystictus versicolor (L.) Fr. 



Dead wood of trees and shrubs. Very common and also very variable. 

 Often growing on stumps and forming large imbricated masses. 



Polystictus pergamenus Fr. 



Dead wood of deciduous trees, specially of aspen. Common. 



Polystictus abietinus (Dicks.) Fr. 



Dead -trunks and branches of coniferous trees. Very common. 

 Bearing some resemblance to the preceding species and like it having 

 the pores more or less violaceous. 



P. abietinus irpiciformis Pk. 

 Dead trunks of balsam fir. Near Averyville. September. 



Poria vaporaria Fr. 



Dead wood and bark. Near Newman. September. 



Poria marginella Pk. 



Prostrate trunks of spruce. Near Newman. Found but once. 



Poria inermis E. & E. 

 Dead trunks of deciduous trees and shrubs. Common. 



