52 



BOTANICAL MAGAZINE. 



[Vol XIX, 



So we see that 



Formosan species occupy: — 30 ^ of the Japanese; 



\l°/o „ ,, Central Chinese; 

 Ao/ „ „ Indian ; 

 28o/ „ „ Northern Chinese. 

 From the tables 1 and 2, we derive the following table : — 



Table 3. 



As the degree of similarity of a flora to another is seen in the pro- 

 portion of the common plants in it to those that are not common, we 

 may modify Table 2 and get five following tables in order to see clearly 

 how each of the five floras resemble the others. 



The following table will show the place of the Formosan flora in East 

 Asia. 



Table 4.— Formosa. 



The greatest similarity to the flora cf Formosa is found to exist in 

 that of Japan ; the least in that of India. No doubt, therefore, that there 

 was a close communication between Japan and Formosa, [cf. Table 5.] 



