DISEASES OF CACAO 



169 



The disease now occurs throughout Surinam, and has ex- 

 tended to the adjacent parts of British Guiana. It has not been 

 recorded outside of the South American continent. A wild 



After van Hall and Drosi 

 Fig. 64 

 A Typical Witch Broom 



Theobroma {T. speciosum) which occurs in the forests of southern 

 Surinam is very Hable to the disease and is thought to have 

 communicated it to the cacao. 



Ritzema Bos (1898, 1899), Massee (1901) and Howard (1901) 

 examined preserved material. The first-named found traces 



