352 111. POLYGONACES. 
Japan; commonly cultivated, and perhaps originally intro- 
duced from China, iu the opinion of Joly (see Ann. Mus. Bot. 
Lugd.-Bat. ii. p. 212). Bretschneider (loc. sup. cit.) states that 
he has little doubt that the * Indigo " exported from Maudshuria 
is yielded by this plant. This was confirmed in 1879 by Mr. A. 
Davenport, then H. B.M. Vice-Consul at Shanghai, who sent seeds 
to Kew, with an account of the mode of cultivating the plant. 
60. Polygonum virginianum, Linn. Sp. Pl. ed. 1, p. 360; 
Meisn. Monogr. Polyg. p. 81, t. 1. figg. 27-29, t. 3. N, et in DC. 
Prodr. xiv. p. 112; A. Gray, Man. Bot. N. U.S. ed. 6 (Watson & 
Coulter), p. 442; Hook. f. Fl. Brit. Ind. v. p. 31. 
Polygonum filiforme, Thunb. Fl. Jap. p. 163; Meisn. in DC. Prodr. 
xiv. p. 122, et in Ann. Mus. Bot. Lugd.- Dat. ii. p. 59; Franch. et Savat. 
Enum. Pl. Jap. i. p. 396, et ii. p. 478; Hance in Journ. Bot. 1883, p. 355; 
Franchet, Pl. David. p. 254. 
KiaNasv: Shanghai (Carles!); Kianust: Kiukiang (Shearer !); 
Foxien: Amoy interior (Swinhoe!); Huren: Patung district, 
Nanto, and mountains to the northward (A. Henry!); Sze- 
CHUEN: mount Omei at 3500 ft. (Faber !); Kwanxarune: Lo- 
faushan (Faber! Ford!) Mus. Brit.; Herb. Kew. 
North India, from Kashmir eastward, and in Japan; also 
common in eastern North America. 
61. Polygonum viscosum, Hamilt. in D. Don, Prodr. Fl. 
Nep.p.71; Meisn. in DC. Prodr. xiv. p. 102; Benth. Fl. Hongk. 
p. 287; Hance in Ann. Sc. Nat. 5™e série, v. p. 240; Hook. f. 
Fl. Brit. Ind. v. p. 36; Mig. in Journ. de Bot. Néerl. i. p. 96. 
SHINGKING: Kaichow to Kiuchow (Ross!); Huren : Ichang 
and immediate neighbourhood (A. Henry!) ; Honaxona (See- 
mann!); Kwanetune (ex Miquel). Herb. Kew. 
Eastern India. 
62. Polygonum viviparum, Linn. Sp. Pl. ed. 1, p. 860; DC. 
Prodr. xiv. p. 124; Hook. f. Fl. Brit. Ind. v. p. 31; Maxim. in 
Bull. Soc. Nat. Mosc. 1879, p. 47. 
CHIH: Pohuashan (Bretschneider !) ; Suanst: Siaowutaishan 
(Hancock ex Maximowicz). Mus. Brit. ; Herb. Kew. 
Mountainous and arctic regions all around the northern hemi- 
sphere. 
63. Polygonum sp., sectionis Persicarie ? caules aculeis re- 
trorsis parce instructi. 
