232 ART. I.—B. HAYATA:? 
Polygonaceee. 
Polygonum LIxn. 
Polygonum alatum Hawmitr., Hoox. f. Fl. Brit. Ind. V. p. 41; 
Forses et Hemsu. Ind. Fl. Sin. IL. p. 332. 
- Has. Randaizan, leg. B. Hayata et U. Mori, Aug. 1908, (No. 
FOV. 
Distris. Afghanistan to Ceylon, Japan and China, and the 
Malay Archipelago, and in Abyssinia. 
Polygonum biconvexum Hayata Fl. Mont. Formos. p. 184. 
Near P. arifolium Lryy., differs from it in having biconvex 
seeds. 
Polygonum glabrum Wrixp.; Metsn. in DC. Prodr, XIV. p. 114; 
Bentu. Fl. Hongk. p. 288; Hoox. f. Fl. Brit. Ind. V. p. 34; Wiceutr 
Ic. Pl. Ind. Or. t. 1799 ; Forsres et Hemsu. Ind. FI. Sin. II. p. 340. 
Has. Tenchodsho, leg. T. Kawakami, 1907, Juni. (No. 5879). 
Distrrp. China; tropical and subtropical regions in Asia, 
Africa and America. 
Polygonum minus Hups.; Meisn. in DC. Prodr. XIV. p. 111; 
Hook. f. Fl. Brit. Ind. V. p. 36; Forres et Hest. Ind. Fl. Sin. I. p. 342. 
Has. Nanto: Kwakozan, leg. T. Kawaxamr et U. Mort, Juli. 
(No. 3183); Shijo (No. 3455). 
Distrisp. China; temperate and subtropical Asia and Aust- 
ralia. 
Polygonum muricatum Mersn. in DC. Prodr. XIV. p. 133; 
Hook. f. Fl. Brit. Ind. V. p. 45, (var.) ; Forses et Hest. Ind. Fl. Sin. 
II. p. 343. | 
