FIG. 4. SILVER LEAF IN FRUIT TREES. Cross eection 

 of branch showing diseased wood, dark in colour, 

 and sound wood. Twice natural size. 



YIG. 5. SILVER LEAF IN FRUIT TREES. 

 Blenheim Orange Apple tree that has 

 died after being regrafted. The scions 

 also have died and the stock bears 

 fructifications of Stereum purpureum. 



(Reproduced from Journal of Agricultural Science, Vol. V, Part 3, by 

 kind permission of Mr. F. T. Brooks and Camb. Univ. Press.) 



311 



