202 THE BOTANICAL MAGAZINE. LVoi. x.\xu. No. ssi. 



external factors. Although the extremes can be linked up by 

 intermediates, three main forms may be distinguished, one of 

 which has been already separated bj' Dr. G. Koidzumi as a 

 variety. 1 ' The chief points of difference of the three forms are as 

 follows :— 



Conidium ajanense Drude in Engl. u. Pr. Pflanzenfam. iii, 

 8, p. 210 (1898) — Yabe, Rev. Umbellif. Japon. in Journ. Coll. 

 Imp. Univ. Tokyo, xvi, 4, p. 62 (1902). 



Syn. Tilmgia ajanensis Rgl. in Rgl. et Til. Fl. Ajan. p. 97 

 (1859). 



Selinum Tilmgia (Rgl.) Maxim, in Mel. Biol, xii, p. 469. 



Cnidium Tilingia Tak. in Tokyo Bot. Mag. xx, p. 305. 

 (1906). 



Forma a. normale m (fig. 4-6). 



Laciniis foliorum infra apicem plus minus dilatatis et 

 abrupte acuminatis, 1 — 2 mm. It. 



Loc. Kuriles : Island of Shimushu (K. End6!); Island of 

 Shikotan (H. Takeda !). Yezo : Mt. Yuparo (H. Yanagisawa !) 

 Mt. Ashpetnupuri (H. Yanagisawa !). Nippon : Mt. Iwaki (T 

 Iwakawa ! N. Kinashi ! G. Koidzumi !). Mt. Hakkoda (F 

 Koriba!); Mt. Kamabuse (N. Kinashi!); Mt. Iwate (G. Naka 

 hara !); Mt. Chokai (S. Ishidzuka!); Mt. Katta (K. Nemoto !) 

 Mt. Shirouma (Y. Yabe! H. Takeda !); Mt. Shirane, Nikko (J 

 Matsumura! T. Urabe ! S. Katahira!); Mt. Happu, Nikko 

 (H. Takeda!); Mt. Gongen, Prov. of Kai (H. Takeda!); Mt 

 Ko.ma, Prov. of Kai (H. Takeda !). 



Forma b. pectinatum (Koidz.) m. (fig. -45). 



Laciniis plerumque elongatis, apicem versus attenuatis, in- 

 tegris, rarissimc 1-2-fidis, infra 1 mm. It. 



Syn. Cnidium Tilingia var. pectinata Koidz. in Tokyo Bot. 

 Mag. xxxi, p. 128 (1917). 



Loc. Yezo: Mt. Tokapchi (G. Koidzumi!). Nippon: Mt. 

 Hakkoda (N. Kinashi ! F. Koriba!) ; Mt. Iide (G. Nakahara !) ; 

 Mt. Katta (G. Nakahara!) ; Mt. Adzuma(G. Nakahara!) ; Mt. 

 Chokai (G. Nakahara !) ; Mt. Asama (J. Matsumura !) ; Mt. 



]) Var. pectinata Koidz. in Tokyo Bot. Mag. xxxi, p. 128 (1917J. 



