164 PLANTING IN UGANDA 



met with only on trees that have been dead for 

 some considerable time, hence it is rarely to be 

 seen in plantations; but the mass of earth and 

 stones bound to the root by brown mycelium is an 

 unfailing indication of the nature of the disease. 

 The fruit forms a thin, inseparable layer round 

 the base of the stem, of a deep orange-brown colour, 

 changing to a dusky brown when the fruit is dead 

 and dry. The surface is minutely velvety. A very 

 fine specimen on Cocoa from the Gold Coast shows 

 the fruit completely surrounding the stem for a 

 length of nine inches, commencing at the collar, 

 where the underground mycelium ends. This 

 disease does not spread as quickly as that of 

 Fomes, as the mycelium does not spread in the 

 ground, but only travels along the spreading roots 

 of diseased trees. It can, therefore, only infect 

 another tree whose roots come in contact with 

 those of the diseased tree. 



Diseased trees should be dug out and the 

 branches of the roots also removed, as far as prac- 

 ticable. The soil all round should be treated with 

 quicklime or " Fungal." 



