— 46 — 



Asiatic East as in the European West. But the aim of my short 

 article is to give the exactest determinations of Japanese re- 

 presentatives and for the solution of this problem I have quite 

 sufficient material, because I had at my disposal a colossal her- 

 barium material, belonging to many scientific establishements and 

 to some private persons in Russia as well as in foreign countries, 

 undoubtedly, the richest representation of this genus in the world. 

 As to the infarmatione of the distribution in Japan of the 

 species, which I have determined, I must say that this theme I am 

 obliged to leave wholly to the Japanese florists, because, in this 

 case they have, no doubt, a much larger material, than the author 

 of tlies lines. I find it agréable to mark the fact that I describe a 

 new endemic species from Japan and for first time speak of 

 the B. triradiatum, Adams from the Kurile-Isles on the only 

 basis of the European herbaria. 



I am endebted to Prof. Dr. Michael I. Golenkin, Director- 

 in-Chief of Imperial Moscow Botanical Gp,rden & Institute and 

 Mr. Demetrius P. Syreitshtikow, Curator of Herbarium of 

 Imperial Moscow Society of Naturalists, who have assisted me in 

 various ways; some interesting specimens I have received thorough 

 the kindness of Mr. Borice A. Fedtshenko, Botanist-in-Chief 

 of Imperial Petrograd Botanical Garden and Curator of its Herba- 

 rium and Prof. Dr. Wladimir L. Komarow, Correspond. Mem- 

 ber of Imperial Academy of Sciences. It is with no common plea- 

 sure that I take my pen up to ofiTer to all the gentlemans here 

 mentioned my hearty thanks. 



Botanical Institute, 

 ImperialUniversity. 

 Moscow. 

 1914. XI. 



