Tatfavaki : On the Pi.rnts Comf/ted in the Island of Ai.Ain by H. Itö and C. Komoki. 19 



July 23 and 26. 



Distr. s/>. ItLirup, UiLip, Parainusliir, ^Alaid. 



This species sometimes grows downward along the \'alle>- as low as 200 

 m. alt. on the northern flank (the Kitaura side) of Mt. Alaid, while it grows 

 mainly in the alpine region on the southern flank. 



Saxifraga rivulai'is L. Sp. PI. cd. i, p. 404; Engl. u. ]':km. in Kngl. 

 Pfl. -reich. IV, 117, I, p. 277. 



var. eurivularis Engl, ct I-'km. 1. c. p. 279. 



form, typica E.ngl. et P"km. 1. c. p. 279. 



Nom. Jap. Hhne-kiyosJiisö. Araito-kiyoshisö. 



Hab. On gravelly slopes : Karasawa, Kitaura, July 26. 



var. Laurentiana Engl. Monogr. Saxifr. p. 105 ; Yabe and Yendo, 1. c. 

 p. (184); T.VKEDA, in Journ. Bot. (191 1). P- "4; Engl. u. Erm. I. c. p. 282; 

 Kudo, 1. c. p. 1 16. 



Saxifraga exilis Yade and Yendo, 1. c. p. (184); P^ngl. u. Ekm. 1. c. p. 

 267. p. p. (not Steph.). 



Xom. Jap. Kiyoshiso. 



Hab. On rocky cliffs, common : Sekinezaki, July 6. Sakichizaki, July 8. 



Distr. var. a Alaid ; var. ß Iturup, Urup, Paramushir, Shumshu, Alaid. 



Saxifraga punctata L. Sp. PI. ed. i, p. 401 ; PIngl. Monog. Saxifr. p. 

 137; Yabe and Yendo, 1. c. p. (184); Takeda, in Journ. Bot. (1911), p. iii; 

 P'ngl. u. P^Kii. in P^NGL. Pfl.-reich. IV, 117, I, p. 9; Kudo, 1. c. p. 117. 



var. typica PlvGL. et P^rm. 1. c. p. 10. 



form. 2. purpurascens P-ngl. et Irmsch. in Engl. efcEssi.- 1. c. p. 10. 



Saxifraga purpurascens Ko.m.\kov, in P'edde Repr. XIII, p. 167. 



Nom. Jap. Murasaki-iiüabuki. 



Hab. On gravelly slopes : Kitaura, Karasawa, July 23. 



form- 4. corymbosa P3ngl. et Irmsch. 1. c. p. 11. 



Nom. Jap. Cliisliiuia-iwabiiki. 



Hab. On rocky cliffs : Namikawa, July 23. 



form. 5. coarctata Sternb. Rev. Sax. Suppl. II, p. 7; PIngl. u. P2km. I. 



