CHESTNUT DISEASES 151 



occurs at the base of the tree through the connection of the 

 coppice sprouts with the old stumps. For further details 

 concerning the life history of wood-rotting fungi and the nature 

 of the decay process caused by these fungi, see page 64. 



Rbpehences 



Long, W. H. Three undescribed heart-rots of hardwood trees, es- 

 pecially of oak. Jour. Agr. Res. 1 : 109-128, pis. 7-8. 1913. 



Schrenk, Hermann von, and Spaulding, P. Kped-rot of oak and 

 chestnut. In Diseases of deciduous forest trees. U. S. Dept. 

 Agr. Bur. PI. Ind. Bui. 149 : 39-40, pi. 5. 1909. (Note : The 

 piped-rot of oak described is due to P. Rheades and of chestnut 

 to P. croceus.) 



