1891.] 



D. Prain — The Vegetation of tJie Coco Group. 



359 



DiSTKIEUTION IN S. B. 



Asia 



■ 





General Distri- 

 bution. 



Westn. 

 Sectn. 



Eastn. Sectn 





























Names of Species. 



■' 



o 

 o 



1— 1 



c3 



s 



i 



o 



PI 



O 



6 



d 



h- 1 



CO 



a 



Pi 

 < 







O 



< 





_c3 



PI 



o 



4 



X 



X 











X 



X 



X 



Padina pavonia .,. 



X 



X 



X 



X 



X 



- 



— 



— 



— 



— 



X 



X 



Dictyota dicliotoma 



X 



X 



X 



X 



X 



X 



X 



— 



X 



X 



X 



X 



Lithothainnion polymorpliuni 



X 



X 



X 



— 



— 



X 



X 



— 



— 



X 



X 



X 



Acanthophora Thierii 



X 



X 



X 



X 



X 



— 



— 



— 



— 



— 



X 



X 



Jania tenella 



— 



X 



— 



— 



— 



— 



— 



— 



— 



— 



X 



X 



Gracilaria crassa .,. 



_ 



X 



— 



— 



— 



X 



— 



— 



— 



— 



X 



X 



Gelidinm. corneum 



X 



X 



X 



X 



X 



X 



X 



_ 



— 



X 



X 



X 



Caulerpa clavifera 



X 



X 



X 



X 



X 



— 



— 



_ 



— 



— 



X 



X 



Canlerpa plnmaris 



— 



X 



— 



— 



— 



X 



X 



_ 



_ 



X 



X 



X 



Valonia fasligiata 



X 



X 



X 



X 



X 



X 



X 







_ 



X 



X 



X 



Valonia confervoides 



X 



X 



X 



_ 



— 



X 



X 



_ 



— 



X 



X 



X 



Halimeda Opnntia 



X 



X 



X 



X 



X 



_ 



_ 



_ 



_ 



_ 



X 



X 



Siphonoc-ladus ? filiformis 



X 



X 



X 







_ 



_ 



_ 





— 



_ 



rxi 



_ 



Vaaclieria sp. 







X 







_ 



_ 



X 



X 



— 



— 



— 



X 



X 



Calothrix pulvinata 



X 



X 



X 



X 



X 



Reviewing the general distribution of the flora as given in Table 

 YI, we find that of the 358 species, 70 are cosmopolitan in the tropics, 10 

 more are nearly so, 49 are more or less widely spread throughout the 

 tropics of the old world, 41 extend from South-eastern Asia to Austra- 

 lasia, while 188 species are confined to South-eastern Asia. The sub- 

 joined synoptic table indicates these distributional features more exactly 

 and gives at the same time the relationship of this distribution both to 

 the habit and to the habitat of the species. 



