237 



ovoid capsules. Its leaves are elliptical, tapering gradually at both ends, and are gener- 

 ally shorter than the petioles. 



Our plant may be a good geographical form of the widely spread P. major^ L. 



MONOCHLAMYDE^E. 



CHENOPODIACE^J. 



222. Chenopodium album, L.; Moquin in DC. Prodr. HQ, 2, p. 70; Fen/1 in Ledeb. Fl. 



Ross, in, p. 697; Benth. Fl. Austr.v, p. 159; Fr. & Sav. Enum. i, p. 386. 

 Hub. Shikotan. Etorofu, at Tsurubetsu. 



Very common in Asia and Europe, spreading over the other parts of the world. 



223. Salsola Soda, L. Sp. p. 323; Moq. in DC. Prodr. xm, 2, p. 189; Fenzl in Ledeb. Fl. 



Ross, in, p. 803; F. Schm. Fl. Sach. p. 167; Fr. & Sav. Enum. I, p. 388. 

 JIab. SMkotan. Etorofu, at Tsurubetsu. 



Distrib. Southern Europe, northern Africa, desert regions of western and middle 

 Asia, Saghalin, Japan and southwestern Manchuria. 



POLYGONACEiE. 



224. Polygonum aviculare, L.; Meisn. in DC. Prodr. xiv, p. 97; Ledeb. Fl. Ross, m, p. 



531; A. Gray, PI. Jap. p. 317; Fr. & Sav. Enum. i, p. 394. 

 Hob. Etorof u, at Furubetsu and Shana. 



Distrib. Native of Europe and temperate Asia, now naturalized in most parts of the 

 world, especially in the temperate zones. 



225. Polygonum viviparum, L. Sp. p. 516; Meisner in DC. Prodr. xrv, p. 124; Ledeb. 



Fl. Ross, in, p. 519; Cham. & Schlecht, in Linnsea, in, p. 38; Trautv. &Mey. Fl. 

 Och. p. 75; Hook. f. Fl. Brit. Ind. v, p. 31. 

 Hab. Kurile Islands (ex Pallas). Etorofu, at Furubetsu, Nobori and Shibetoro. 

 Distrib. Arctic and alpine regions of Europe, Asia and North America. In Japan 

 it extends southward to the alpine district of the main island ; and in western North 

 America to Utah, Colorado and Nevada. 



226. Polygonum amphibium, L. Sp. p. 517; Meisner in DC. Prodr. xiv, p. 115; Ledeb. Fl. 



Ross, m, p. 520; Hook. Fl. Bor.-Am. n, p. 131 ; F. Schm. Fl. Sach. p. 168; Hook, 

 f. Fl. Br. Ind. v, p. 34. 

 Hab. Etorof u, at Rausu. 



Distrib. Europe, northern Asia, south to western IIimala} 7 a, Manchuria and the north- 

 ern part of Yezo; northern North America to southern California, and along the Rocky 

 Mountains to Mexico, and eastward in the Northern States; also in southern Africa. 



227. Polygonum Weyrichii, F. Schm. in Max. Prim. Fl. Amur. p. 235, Fl. Sach. p. 169. 



— Yar. ' alpinum, Max. ! in Fr. & Sav. Enum. I, p. 402, and Mel. Biol, ix, p. 

 617. P. polymorph urn, var. luputhifolium, F. Schm.? in Max. Prim. p. 234. 

 Hab. Shikotan, on the hillsides. Etorofu, at Shana and Shibetoro. 



