C)5 



as the ovary, connate at the basal portion ; stigma capitate. Akene 

 enclosed in the periantli and shorter than them, ovoid, acute at the. apex, 

 acutely triquetrous, nigro-castaneous, smooth, shining, 2i-3mm. long, the 

 face ovate. 



Hah. Prov. Tosa : Kochi {T. Blahino ! Nov. 1891, Oct. 1892), 

 Asakura {T. Mahino ! Sept. 23, 1892) , Edagawa {T. Maldno ! Oct. 22, 

 1892); Prov. Shimoosa: Mama {T. 3Ialdno\ Oct. 26, 1890, Oct. 6, 1895); 

 Prov. Kadzusa : Haseya (Herb. ! Sc. Coll. Imp. Univ. Tokyo, Sept. 

 1880); Prov. SniBiOTSUKE : Nikko (Herb. ! ibid.); Hokkaido (Z. Boehmer ! 

 herb, ibid.) ; Formosa : Daihoku {T. Maldno ! herb. ibid. Nov. 12, 1896 ; 

 C. Owataril herb. ibid. Dec. 21, 1897). 



This seems to be allied to Polygonum murlcatum Meisn. and P. 

 strigosum E. Br., but it differs from the former, by the narrow leaves 

 and the densely many-flowered capitate spike ; from the latter, chiefly by 

 the shining acute-triquetrous akene. It is widely distributed over Japan. 



var. ^. latifolium Makino. 



Polygonum onuricatum var. Maxim, in litt. 



Usually shorter, attaining 11 decim. in length. Stem ascending and 

 diffuse from the decumbent radicant base, loosely ramose. Leaves ovate 

 to elliptical, or elliptical-oblong, abruptly short-acuminate, truncate or 

 subcordate at the base, very minutely antrorsely scabro-ciliated on the 

 margin, l|-7cm. long, |-3icm. broad, the lower ones often reflexed ; 

 petiole 2-18mm. long. Panicle loose ; peduncle filiform, longer than the 

 spike. Spike capitate to ellipsoid, .5-13mm. long, densely many-flowered ; 

 bracts ovato-subulate, glabrous or thinly glanduloso-hispid, ciliated, mem- 

 branaceous. Flowers pedicellate, 2i-3mm. long, rose-purple above and 

 pale or pale-viridescent below ; pedicels 2-fasciculate, one shortly exserted 

 and other not, slightly glanduloso-hispid above. Perianth 5-cleft ; segments 

 elliptical or elliptico-oval, rounded-obtuse at the apex. Stamens 7-9. 

 Ovary ovoid ; styles shorter than the ovary, connate half below or at the 

 basal portion. Akene enclosed in the perianth, ovoid, acute, acutely trique- 

 trous, umber, smooth, shining, 2^mm. long, the face ovate. 



Hah. Prov. Tosa : Sakawa (T. Blaldno ! 1884), Arioka in Hata-g5ri 

 {T. Maldno I Nov. 4, 1885), Koishiki near Kochi (S. Yanol Sept, 1888), 

 Godaisan (T. MaldnoX Sept. 29, 1892), Kambara {T. Maldno I Oct. 17, 

 1892), Edagawa {T. 3Ialdno\ Oct. 22, 1892); Prov. Sagami : Hakone 

 {T, Mahino ! Sept. 24, 1886) ; Prov. Musashi : Near Omiya-hachiman 

 {11. Yatahe and J. Blatsum.ura ! herb. Sc. Coll. Imp. Univ. Tokyo, Oct. 

 5, 1879), Kawasaki {T. Maldno !) ; Prov. Suo : Ouchi-mura {D. Nilcai ! 



