14 W 111 -* /i: it S5 u'f !t m m i~ m i r 



541 ; Trruitv. ct !\Icy. ]•"!. Ocht. p. 179; IMa.xim., Prim. ]"1. Amur. p. 155'; 

 Herd., ri. Kadd. ]\I..nc)p. J'.d. III. lieft. I., ]>. 47. 



NOM. J.M'. Cliishiiiia-kflJiamagiku. 



II. \n. Kaintsclialka. Oxcrnoi (Yokoyama ! ) ; Opara (It^ari !) ; Baroness 

 Korf I?ay (Yi)ko>-ama !). 



North-caslcrn Siberia. .Anadyr (Yokoj-ama !). 



Behring Sea Regions. St. Lorenz Hay (Yokoyama !) ; Ikhring Island 

 (Yokoyama !). 



Saglialien. Sliikka-District : Shikka (Miyakc !). 



Kuriles. Shimushu (Ishikavva !). 



var. yezoense INIackawa. var. nov. (Figs. 1-4.) 



Cdabnim \el glabriusciilum. Caulis ramousus vol simplex. Folia basi 

 sub-cuneata vel late subcuneata ; radicalia et caulina inferiora flabelliformia, 

 trifida, li)l)is plus-minus inciso-dentatis, dcntibiis truncato-rotundatis vcl 

 obtusinsculis ; media ellii)tica, 3-5-lobata, lobis plus-minus dentatis acutis ; 

 superiora ligulariformia, margine integra. Tnvolucrorum squamae ellipticae 

 vel i)\atae, fusco-scarioso-marginatac. 



NoM. Jap. Öha-ehishiuia-kohainagiku. 



Hab. Saghalien. Odomari-District : Soriofka (Faurie!). 



Kuriles. Urup (Ritahara !) — Etorofu (Kambe ! ; Ishikawa ! ; Tanaka and 

 Alis'abe, Jr. ! ; Kitaliara !). — Kimashiri (Yendo ! ). 



Yezo. IVov. Nemuro : Katsuramui (]\Iiyabe!; ]\Iaekawa !) ; Hanasaki 

 (:\Iaeka\va !). 



Along the coast of Nemuro \ve see this \"ariet\" and Ch. yezoense grow- 

 ing iu groups here and there. On the 12th. of August 1919, I visited the 

 place just at tlie flowering time of this variety, while Ch. yezoense was still 

 in lea\ es. This ilifference in the flowering season, the latter blooming about 

 one month later, as h.as been pointed out by ^liyabe, constitutes a good 

 difference between tliem. It is an interesting fact that this district is the 

 most nortlieru limit of Ch. yezoense, and probably at the same time the 

 southernmost limit of the var. yezoense of Ch. arcticum. It is also note- 

 worthj' that the lea\es of C]i. yezoense are very highly scented while those 

 of Ch aretienm are almost scentless. 



