23fi 



PHYTOPHTHORA MEADII n. Sp. ON HEVEA BRASILIENSIS 



to the main branch shown ; the one above it was green but leafless (eight leaf- 

 scars showing that eight leaves had fallen), while all the others had gieen loaves 

 and looked quite normal. The other leaf -scars mentioned in the diagram are 



LEAF SMCODING 



BUT BRANCH S1'ILL< g LEAF SCARSi* 

 GRCEN I ueAVtS. 



BROWN STREAKS) 

 IN THE WOOD J 



DGAD BRANCH 



» PHYTOPHTHORA MVCCLtUM FOUND IN THE REGION 

 OF THE BLACK CROSSES. 



ASTCR'SKS 



Fig. 3. 



those of the previous season's leaves. The main branch was discoloured on 

 one side about the place of insertion of the lowest side-branch. The lowest 

 part of the lowest side-branch was discoloured, but some of the cells of the 

 cortex were still green so that this part of the branch was not quite dead. 

 Within the main branch the pith w as brown for a distance of 4 centimetres above 

 and below the insertion of th^ lowept side-branch. The x^lem was streaked 



