102 TREE WOUNDS AND DISEASES 



trees are growing on light, poor soils. Young 

 trees up to, say, twenty years old are most 

 commonly attacked by this fungus, which 

 appears like blisters, emitting bright reddish- 

 coloured spores. Rooting up and burning all 

 affected trees is the best remedy. 



Daldinia concentrica. As will be seen from 

 the illustration, this rare and curious fungus 

 occurs on the ash in closely arranged groups 

 of half a dozen or more, and is usually found 

 where decay is present in the timber. It is 

 of a dark brown colour, solid and smooth of 

 surface, flatly globular in shape, and two inches 

 in diameter. When cut across, the curious 

 concentric zones in the tissue of the fungus 

 resemble those of the graining in timber. It 

 remains intact on the tree for several years. 

 Like several other tree fungi, it occurs in 

 London, and specimens may be seen on ash 

 trees by the canal bank in Regent's Park. 

 Removing the fungus and dressing with 

 carbolineum has so far been attended with 

 good results. 



Coral Spot Disease (Nectria cinnabarina]. 

 This, one of the commonest of fungi, may 



