Volume II 



APRIL, 1916 



No. 4 



OBSERVATIONS ON SOME DISEASES OF 

 PLANTATION RUBBER IN MALAYA. . 



By F. T. BROOKS, M.A., 



Senior Demonstrator of Botany, Cambridge University ; sometime 

 Government Mycologist, Federated Malay States. 



(With Plates XXXIII— XXXV.) 



1. Introduction. 



The present paper is an account of observations made upon some 

 diseases of plantation rubber while the writer was acting as Government 

 Mycologist in the Federated Malay States during 1911. Accounts of 

 Pink Disease caused by Corticium salmonicolor and of the disease 

 caused by Ustulina zonata have been published in separate papers (5, 7) 

 and are only briefly mentioned here. 



Generally speaking, Para rubber is a particularly healthy tree not 

 only in its home in the valley of the Amazon but also in Ceylon, Malaya, 

 Borneo, Java, and Sumatra, where such enormous areas have been 



Ann. Biol, n 14 



