SEPT. 190S.J NA KA T.—AN OBSER V. ON JAPA NESE ACONITUM. [ 37 



Hab. Honto : JikkokutBge in prov. Izu (fi^S+glilHJ) fl. (H. Takeda). 



Dokwanyama in prov. Musaslii (fft^iirllil) Sept. 1907. fl. 



(T. Nakai). 



1^. montanum Nakai. Folia trisecta, segmentis lateralibiis 



bifidis, omnibus rhomboideis, laciniis lanceolatis v. lineari-lan- 



ceolatis. 



Japanese Name : Yamatorikabuto. 

 forma 1. genuinum Nakai. 

 Folia snbmembranaceoiis, laciniis lanceolatis. 



Ilab. Honto: Aizu in prov. Iwashiro (^j^f-vlt) Aug. 1879. fl. 



M't. Koniagatake in prov. Kai (tpSI^I^ji) Aug. 12. 1903. fl. 

 (H. Takeda). M't. Kongo in prov. Kawachi (Mft:tI51lJlli) 

 Aug. 1899. (T. Tada). M't. Nyoho in prov. Shimotsuke 

 iU^-kU\h) Aug. 18. 1901. fl. (H. Takeda). M't. Ho5 in 

 prov. Kai (^SEIHUl) Aug. 26. 1906. fl. (H. Takeda). 

 At Nikk5 (El3t): 19. 1902. fl. (H. Takeda), at Hosono 

 (Bmm) Oct. 1907. fl. (T. Nakai), at Umagaeshi 

 (H3fc.iig-y) Sept. 27. 1879. fl.; at Chuzenji (g^tttJli*) 

 Oct. 5. 1889. fl. Near Oinuma in prov. Kozuke {±W%iS) 

 Aug. 24. 1904. fl. (H. Takeda). M't. Myogi in prov. 

 K5zuke i±m^:m\ii) Sept. 1907. fl. (T. Nakai). M't Takao 

 in prov. Musashi (S^sliffiMUJ) Sept. 1907, fl. (T. Nakai). 



forma 2 membranaceum Nakai. 

 Folia valde membranacea, cet. ut praeced. 



Hab. Nikko in prov. Shimotsuke (TSf Hpfe) Sept. 1878. fl, and fr. 



forma 3. sikokianum Nakai. laciniis lineari-lanceolatis, nec- 

 tariis limbo petali acutangiilaribus. 



Hab. Shikoku: M't. Tsurugi in prov. Awa (P«7-^^Uj) Aug. 13. 

 1904. fl, (J, NiKAi). 



The distinctive character by which Aconitum japonicum is 

 distinguished from Aconitum uncinatum is not the existence of 

 hairs on pedicels. The haired pedicel is quite common, and 

 glabrous one by which Regel separated this from the latter 

 is rather rarer. The leaves of Aconitum japonicum as Thun- 

 burg described in his 'Flora Japanicte ' (not in Reichenbach's 

 Illustration) have 3-divisions and the lateral segments have 2 

 subdivisions, therefore genuine palmate leaves are not often 

 seen. The farther differences are as follows. 



