222 ..THE BOTANICAL MAGAZINE. [Vol. xxxi. No. scs. 



A. Komatsui 



A. Matsumurse 

 Endemic in Hondo J a. membranaceum 



A. meta-japonicum 



A. nipponicum 



A. zigzag 



A. Zuccarini 



A. corymbiferum 



A. lusidusculum 



A. yesoense 



A. yuparense 

 Endemic in Shikotan ... {.4. kurilense 



Endemic in Yeso. 



Endemic in Saghaline. 



(A. Miyabsi 



\A. neo-sachalinense 



Twenty-four endemic species to eighteen species common to two or 

 more regions show how rich is Japan in local species of Aconitum. 

 Eliminating the eight species (A. Gmelini, A. albo-violaceum, A. ambi- 

 guiim, A. Kusnezoffi, A. koreanum, A. macrorhynchutn, A. Raddeanum, 

 A'. Sczukini) peculiar to Corea and adjacent lands, the ratio of difference 

 between endemic species and species common to two or more regions 

 is raised 50 per cent. 



My friend, the late Pere U. Faurie, kindly sent me his material of 

 Cirsium, Geranium and Aconitum. I investigated his Geranium and 

 Cirsium and published the results in this magazine. But in the material 

 of Aconitum, there were many imperfect specimens and though I thought 

 some of them might belong to new species I could not determine them. 

 However, last summer, Dr. Gen-ichi Koidzumi went to Yeso and 

 collected Aconitum yuparense, A. yesoense, A. subcuneatum, A. lusidus- 

 culum and A. corymbiferum (the two latter are new species), which he 

 easily distinguished in the field. Dr. Koidzumi's material has enabled 

 me to accurately determine the doubtful specimens of the late Pere 

 Faurie. . 



Recently, Professor Dr. Kingo Miyabe kindly sent me for the 

 purpose of determination all the specimens of Aconitum preserved in 

 Tohoku Agricultural University and collected especially in Saghaline, 

 Yeso and the Kuriles. For the investigation of the species of Aconitum 

 of northern Japan it would be difficult to get better material than this. 

 I found unexpectedly species new to Japan, and ascertained that A. 

 Fischeri and A. maximum, so imperfectly known to the Europaean 



