1890.] D. Prain — A List of Diamond Island Planfs. 



Coast species : — 

 Andamans, = V + f = ^±^ ^ ,_, = 71 ^^^ 38-34%. 



Pegu, 

 Arracaii, 



— 1_7 -V i — 



~~ 3 ' 2 ~ 



= 1-7 _|_ _1_ _ 



3 "^ a 



6 



34 + 3 

 6 



34 + 3 



G^ or, 30-837.. 



= V=6i or, 30-83% 



20. 



100-00. 



293 



Comparing the results in these three series of figures we find tlie 

 general influence differs from the special influence exhibited in the 

 statistics of the inland and the coast element of the flora as follows : — 



Table IV. Comparison of Besults. 





Species in flora 

 generally. 



Inland 

 species. 



Coast 

 si^ecies. 



Andaman influence responsible for in- 

 troduction of 



29-29%. 



24-567o. 



38-347^. 



Pegu 



36-14%. 



39 037o. 



30-837^, 



Arracan „ „ ,. „ 



3i-577o- 



36-41%. 30-837o. 



It will at once occur to the reader that a fallacy underlies this cal- 

 culation so far as the Andaman influence is concerned, when he notes 

 the low figure at which that influence as regards inland species is given. 

 This low figure, however, only affords corroboration of the justness of 

 the system, since it is exactly the inland portion of the Andaman flora 

 that is as yet inadequately known. The Andaman coast species 

 are, however, nearly if not quite as well known as the Burmese or 

 Malayan coast species, and it is interesting to find that for this element 

 the equivalent numerical expression of the Andaman influence is dis- 

 tinctly higher than are the figures for Pegu or Arracan. The only 

 fallacy underlying the evidence from these figures is that which attends 

 all calculations from numbers that are absolutely somewhat small. At 

 all events they show how just was the passing observation made by 

 Mr. Kurz on his visit to Diamond Island in I8C6.* The only point on 



* Already given in the text (p. 276) and referred to in footnote f. 



