168 VOT... XXXI. — T. NAKAi: 



Polygonum conspicuum Nakai. 



P. japonicum var. conspicuuiii Nakai I.e. 



Kyöng-.sari : Mul-geum. (T. Uchiyama). / 



var. densiflorum Nakai i.e. p. ]i. 



Kyöng-san : Kum-san-ri. (T. Uchiyama). 



Polygonum flaccidum Meisj^. Nakai i c. 



Kvöng-geui : circ^ Ko-yang. (T. Uchiyama). 



Polygonum Posumbu hamilt. Nakai i.e. p. 12. 



Kyöng-geui : monte Namsan. (T. Uchiyama). 



Kang-uön : monte Tumgangsan. (T. Uchiyama). 

 var. Blumei (Meisn.) Herder. 

 P. Bhimei Meisn. Nakai I.e. p. 11. 



Kyöng-geui : colle Namsan (T. Uchiyama). Seoul (A. Takahashi). 



Polygonum tinctorium Lour. Nakai i.e. 

 Kyöng-geui : circa Seoul. (Carles). 

 In regionibus australibus et mediis potius rarius c'^lluntur. 



Polygonum minus Huds. Nakai i.e. p. 12. 



Ham-gyöng : monte Chin.subon. (T. Nakai). 



In Korea septentrionali. (Komarov). 



Phyöng-an : ad ripas fluminis Taitonggaiig Aug. 2,5, 1909. (H. 



Imai). 



Sect. Bistorta. 



Polygonum Bistorta l. var. angustifolium Meisn. Nakai i.e. p. 13. 



Kyöng-geui : insula Shakuyaku circa Inchon. (T. Uchiyama). 

 var. USSUriense Eegel Nakai le. 



Kyöng-geui : monte Namliansan. (T. Uchiyama). 

 var. incanum Nakai var. nor. 



Caulis elatus glaber. Folia cauliua sessilia cordato-lanceo- 

 lata acuminata, supra glabra subtus dense incano-pubescentia. 

 Spica elongata. 



Hab. Shöjökantö: Sandö, 8, Julio 1909. (K. Hatta). 



