io8 TREE WOUNDS AND DISEASES 



the question, the only remedy is cutting off 

 the growths, which, however, unless appear- 

 ing in large numbers, but little affect the 

 health of the trees. 



There are many other species of fungus that 

 attack our woodland trees, but those described 

 have caused the greatest amount of damage to 

 our timber trees generally. 



Root fungi should be carefully guarded 

 against in the replanting of ground, by the 

 removal of stumps and decayed timber of every 

 description, even chips, pieces of old planks, 

 and fencing-posts having been found to foster 

 the growth of the fungus. Repeatedly have 

 we seen young trees of various kinds die off 

 without any apparent cause, and on examina- 

 tion of the roots have found they had become 

 permeated with fungus which originated on 

 timber that had been left in the ground at 

 time of planting. 



The beautiful vivid green colour assumed 

 by oak and pear timber under certain condi- 

 tions is due to the action of the fungus Peziza 

 (He/otrium) tzruginosa. The colouring matter 

 is permanent in the timber, and, as it cannot 



