LII. PonLyaoNACEF. 349 
l 50. Polygonum senticosum, Franch. et Savat. Enum. Pl. Jap. 
1. p. 401, et ii. p. 480. 
Chylocalyx senticosus, Meisn. in Ann. Mus. Bot. Lugd.-Dat, ii. p. 65. 
Polygonum perfoliatum, Thunb., ex parte, teste Meisn. 
Polygonum Babingtonii, Hance in Ann. Sc. Nat. 5me série, v. p. 239, 
non Endl. 
Polygonum typhoniifolium, Hance in Ann. Sc. Nat, 5m« série, v. p. 239. 
SHANTUNG : Chefoo ( Forbes!) ; KiANGsU : Shanghai (Carles!) ; 
CHEKTANG: Ningpo (Faber!); Foxren ( Gregory, hb. Hance, 
1269!); Formosa (Oldham, 419, 421! Swinhoe ); Hurkn: 
Patung district (4. Henry!); KwawarvNa: around Canton 
(Sampson, hb. Hance, 7497 !), Lofaushan (.Ford!); East Corra 
(Perry !); Lucuu Arcutpenaco (JVright!). Mus. Brit.; Herb. 
Kew. 
Japan and Mandshuria. 
51. Polygonum serrulatum, Lagasca, Nov. Gen. et Sp. p. 14, 
n. 181; Meisn. in DC. Prodr. xiv. p. 110; Hook. f. Fl. Brit. 
Ind. v. p. 38; Hance in Journ. Linn. Soc. xii. p. 119, et in 
Journ. Bot. 1879, p. 14. 
Polygonum Donii, Meis». Monogr. Polyg. p. 72, excl. synon. teste 
Hook. f. loc. cit. 
SuaNTUNG to SZECHUEN, Kwanetune, HONGKONG, Formosa, 
and the Lucuu ARCHIPELAGO, apparently very common, and 
very variable in the length of the bristles terminating the stipules 
and the bracts. Mus. Brit. ; Herb. Kew. 
In the ‘ Flora of British India’ the distribution given is South 
Europe, Asia, Africa, America, and Australia. 
Chinese specimens which we regard as belonging to this 
species (apart from the question whether P. Posumbu, Hamilt., 
and P. flaccidum, Meisn., be the same species) have been named 
P. Donii, Meisn., P. barbatum, Linn., P. Blumei, Meisn., aud 
P. japonicum, Meisn., showing how great is the uncertainty con- 
cerning these species or varieties. 
52. Polygonum sibiricum, Lam. in Nov. Act. Acad. Petrop. 
xviii. 1773, p. 531, t. 7. f. 2; Meisn. in DC. Prodr. xiv. p. 139 ; 
Maxim. Ind. Fl. Pek. in Prim. Fl. Amur. p. 476; Baker et S. 
Moore in Journ. Linn. Soc. xvii. p. 885; Franchet in Mém. Soc. 
Sc. Nat. Cherbourg, xxiv. p. 249. 
Polygonum hastatum, Murr. in Nov. Comm. Goelt. v. 1774, p 37, t. 6, 
- +) 
LINN. JOURN.— BOTANY, VOL. XXVI. < B 
