364 



D. Prain— r/ie Vegetation of the Coco Group. 



[No. 4, 



Of the 358 species, 232, making 65 per cent, of the whole, occur at 

 once in Indo- China, Malaya and the Andamans ; 40 occur in Malaya and 

 the Andamans, 8 of these extending to Tenasserim but not occurring in 

 Burma or Siam (Indo-China proper) ; 22 occur in Indo-China but not in 

 Malaya, 12 of them being present in the Andamans also ; 40 occur in 

 the Andamans without appearing either in Indo-China or in Malaya, 

 though 8 of these appear in Tenasserim, which connects Indo-China with 

 the Malay Peninsula, just as the Andamans connect Indo-China with the 

 Malay Archipelago ; 8 occur only in the Coco Islands and Tenasserim, 

 and 13 are apparently confined to the Coco group. This last number is 

 pi'obably too high ; some of these species, as well as some of those others 

 for which the Coco locality is as yet the only record from the Andamans, 

 may occur in North Andaman. 



The following table gives the distribution of the species in these 

 three districts as well as in the sub-district of Tenasserim : — 



Table XII. Distribution of Goco Islatid species in the Indo-Chinese and 



Malayan districts. 



A. 



Species extending from Coco Gronp to : — 



Indo-China, Tenasserim, Andamans, Malaya, ... 



Indo-China, Tenasserim, 



-, Malaya, 



Indo-China, 



-, Tenasserim, Andamans, Malaya, 



-, Tenassei'im, , Malaya, 



-, Andamans, Malaya, 

 -, Andamans, — 



Indo-China, 



, Tenasserim, Andamans, , 



Tenasserim, 



-, Andamans, , 



Total species extending from Coco Group 

 Species confined to Coco Group 



Total Coco Island species 



232 



1 



32 



12 

 8 



10 

 8 



32 



345 

 13 



358 



B. 



occurring in : — 





No. 



of species. 



percentage of flora. 



Species 











Indo-China 







256 



11 





Tenasserim 



•.• ... 





259 



72 





Andamans 







824 



90 





Malaya 







275 



76 



Species 



confined to Coco 



Group 





13 



3i 



This table therefore leads to the conclusion that phytogeographically 



tall, but extremely hard and tough, and forming dense thickets very difficult to pass 

 through— a general description agreeing very well with that of Dendrocalamus strictus 

 as it occurs in Great Coco. 



