150 BOTANICAL MAGAZINE. [Voi. xvii, 



Pohjgonum sagittatum var. cestivuiti Makino in Bot. Mag., Tokyo, VI. 

 (1892) p. 49. 



Polygonicm foliis sagittatis, caule OjCiiIeato Gme], Fl. Sib. III. p. 65, 

 tab. 13, fig. 2. 



Poligonum Sieboldii A. Gray in Parry^s Exped. Jap. II. p. 317. 



Stem often geniculato-divaricato-ramose and often shortly decumbent 

 at the below ; branches slender, erect, loosely ramose, retrorsely aculeate on 

 the angles. Leaves petiolate, sagittato-oblong-lanceolate, or sagittate-lan- 

 ceolate, smooth-margined, retrorsely aculaate at the base of the midrib 

 beneath ; petiole often retrorsely aculeate. Flowers capitate. Akene 

 trigonous. Flowers May-June, but sometimes August on mountains. 



Eab. Prov. Tosa : Sakawa {T. MaUno\ 1885, 1891), Tokano {T. 

 3Iakinol June 10, 11, 1889, June 1893), Doi in Aki {T. Makino \ June 

 3, 1892) ; Prov. Iyo : Kuwabara (K. Okudaira ! June 7, 1897) ; Prov. 

 BuzEN : Mt. Iwadake (i?. Yatahe and J. 31atsumura ! herb. Sc. Coll. Imp. 

 Univ. Tokyo, July 17, 1882) ; Prov. Musashi : Omiya in Wada-raura {T. 

 Makino \ June 3, 1888, May 15, 1901), Near Fuchu {T. 31akino\ May 27, 

 1894), Setagaya {T. Makino \ May 6, 1894), Shimoshakushii {T, Makino\ 

 May 20, 1900), Onden {T. Makino ! June 1900) ; Prov. Idzu : Yuga- 

 shima {S. Okuho ! herb. ibid. June 14, 1883) ; Prov. Suo : Ouchi-mura (Z>. 

 Nikai ! herb. ibid. June 5, 1892) ; Prov. Shimotsuke : Nikko {R. Yatahe ! 

 herb. ibid. Aug. 1, 1877 ; T. Makino 1900, Aug. 1903). 



Widely distributed over this country. 



/3. americanum Meisn. in DC. Prodr. XIV. p. 132 ; Herd, in Act. 

 Hort. Petrop. XI. p. 255. 



Polygonum sagittaium Linn. Sp. PI. p. 363, Cod. n. 2871, ex parte. 



Polygonum sagittatum a. boreale Meisn. Monogr, Polygon, p. 65 ; 

 Ledeb. Fl. Boss. III. p. 529, ex parte. 



Polygonum sagittatum /9. horeale Hook. Fl. Bor. Amer. II. p. 131. 



Polygonicm sagittatum Ait. Hort. Kew. ed. 2, II. p. 420; A. Gray 

 Man. Bot. et. 5, p. 418; 0. Kuntze'Kev. Gen. PI. II. p. 559. 



forma Sieboldi (Meisn.) Makino. 



Polygonum Sieholdi Meisn. in DC. Prodr. XIV. p. 133, et in Miq. 

 Ann. Mus. Bot. Lugd.-Bot. II. p. 63 ; Miq. Prol. Fl. Jap. p. 300 ; Franch. 

 et Sav. Enum. PI. Jap. L p. 400 ; Maxim, in Mel. Biol. IX. p. 617. 



Polygonum sagittatum var. Sieholdi Maxim, in litt. 



Polygonum sagittatum Thunb. Fl. Jap. p. 167, ex parte. 



Polygonum sagittatum (L.) Sieb. in Herb. Lu'gd.-Bat. ex Meisn. 



Polygonum sagittatum Franch. et Sav. Enum. PL Jap. II. p. 476. 



