2 AET. I. — B. HAYATA : 



At the same time, as the flora of the island contains a con- 

 siderable number of elements from India, including the Himalayas 

 and the Malay peninsula and archipelago, it is equally desirable 

 for my work that the same should be done with the specimens 

 of the regions above mentioned. For a comparison with Japanese 

 specimens, the Herbarium at Tokyo will answer fairly well, as 

 it includes nearly all Japanese plants, though not exhaustively. 

 Chinese plants, however, are here only very poorly represented. 

 I, therefore, found it very unsatisfactory to work up so big a 

 collection only in the Herbarium at Tokyo. Moreover, as a con- 

 siderable number of Chinese plants are represented in the Her- 

 barium at Kew, and also in that at Dahlem, and the type speci- 

 mens of Feanchet are especially preserved in the Herbarium at 

 Paris, and those of Maximowicz, in that at St. Petersburg. 

 I thought it very necessary for my work to see all the plants 

 represented in the principal herbaria of the West. It was my 

 great good fortune that I was given an opportunity of visiting 

 these different herbaria in order to make an exhaustive com- 

 parison of my materials with the collections preserved in' them. 

 With this intention I first went to Kew taking all my materials 

 with me. There I pursued my work with specimens of the 

 floras to Avhich our flora is more or less related. The comparison 

 made, in most cases, was confined to the flora of Asiatic regions, 

 especially, to China, Korea, India, the Himalayas, and the Malay 

 peninsula and archipelago ; but, sometimes, it was extended, when 

 necessary, to Australia, the Arctic and Antarctic regions, Europe, 

 Africa, America and even to Polynesia. I found that many of 

 the species of my collections are represented in the Chinese 

 herbarium at Kew, and also among the specimens from other 

 regions. At the same ti^ne, I found also that the greater part 



