Dec. 1913.1 T . MAKINO.— OBSERVATIONS OH THE FLORA OF JAPAN. 251 



Isl. Sachal. (1868), p. 166 ; Palib. Consp. PI. Kor. II. (1900), 

 p. 33 ; Komar. Fl. Mansh. II. p. 162 (1903) ; Makino in Bot. 

 Mag., Tokyo, XVII. (1903), p. 215; Nakai, Fl. Kor. II. 

 (1911), p. 161. 



Nom. Jap. Akkeshi-sb (K. Miyabe). 



Hab. Prov. IYO in Shikoku : Takihama (M. Okajioto ! 

 Aug. 1912 ; T. Ota ! Oct. 26, 1913). 



According to Mr. T. Ota, this plant is called Hama-matsu 

 (meaning Littoral Pine), and /when young it is eaten by the 

 native in the above cited locality. 



Polygonum Thunbergii Sieb. et Zucc. in Abh. Akad. 

 Muench. IV. 3 (1846), p. 208. 



var. oreophilum Makino, var. nov. 



Stems slender, much elongate, diffuse, looseh' ramose, 

 sparingly muricate ; internodes elongate. Leaves thin, thinly 

 hairy on both surfaces, hastate, truncate at the base ; midlobe 

 largest, broadly ovate, nearly not contracted below, caudately 

 acuminate, ciliated ; lateral lobes patent, deltoid or ovato- 

 deltoid, acute or subobtuse ; petiole long except those of the 

 superior leaves, not -winged ; ochrea sometimes rotund-foliate 

 at the mouth. Flower-clusters terminal and axillary, several- 

 or few-flowered, often depauperately flowered. Flowers 

 smaller, pale, often slightly rosy at the spex. 



Nom. Jap. Yama-mizosoha (nov.). 

 . Hab. Prov. MUSASHI : Mt. Takao (T. Makino! Oct. 5, 

 1913). 



This grows among bushy places on hills. Characteristic 



features are the elongated stems, shape of leaves and fewer 

 flowers. Leaves closely resemble those of P. aritolium Linn. 



Trapa natans Linn. Sp. PI. p. 120. 

 var. rubeola Makino, var. nov. 



Stem purpurascent within. Leaves numerous, long-petio- 

 late, rhombicly depressed-ovate, repand-dentate, obtuse or acute 



