PLATE 40. FUNGOUS DISEASES. 



Fl 



1. Living Apple with fruiting body of False-Tinder Fungus (Pyropolyporus igniarius) . 



two feet above fruiting bodies, showing centre rotted by mycelium of Hydnum septentri- 

 onale. 5. White Oak, with fruiting body of Dcedalea quercina growing out of a knot 

 hole. 6. A longitudinal and transverse section of the white oak in 5, two feet below 

 fruiting body, showing the disintegration of the wood by the mycelium of Dcedalea 

 quercina. 



