92 141. DIOSCOREACE X. 
8. Dioscorea japonica, Thunb. Fl. Jap. p. 151; Mig. in Ann. 
Mus. Bot. Lugd.-Bat. iii. p. 159 excl. syn.; Franch. et Savat. 
Enum. Pl. Jap. ii. p. 47 excl. syn. ; Somoku Zusetsu, xx. tt. 56-7. 
CnurKIANG : Ningpo (Faber, 80!); Kranest: Kiukiang 
(Shearer!) ; Formosa (Oldham, 573 ! Wilford, 561!), Tamsui 
(Watters, 37!); Kwanetune: Lofaushan (Ford, 330!). Mus. 
Brit.; Herb. Kew. 
“ Shanyotsai, a valuable medicine.” — Watters. 
Japan. 
9. Dioscorea oppositifolia, Linn. Sp. Pl. ed. 1, p. 1033; 
Lour. Fl. Cochineh. p. 624; Wight, Ie. Pl. Ind. Or. t. 813; 
Kunth, Enum. Pl. v. p. 990; Benth. Fl. Hongk. p. 367; 
Hook. f. Fl. Brit. Ind. vi. p. 292. 
Formosa: Bankinsing (4. Henry, 1673 mn: Howakoxa 
(Wright, 528! Ford, 24! Lamont, 787 !), Tytam (Hance, 458 !), 
Mus. Brit.; Herb. Kew. 
Tropical India. 
10. Dioscorea polystachya, ue. in Bull. Soc. Nat. Mose. 
(1837) no. 7, p. 158; Kunth, Enum. Pl. v. p. 403; Mazim. Ind. 
Fl. Pek. in Prim. Fl. Amur, p. 478. 
N. Cursa (Kirilow, 198, ex Turezaninow) ; Cuiurr: Peking 
(ex Maximowicz). 
I have seen no specimen of this species, which, from Turez- 
aninow's brief description, must be very closely allied to D. do- 
ryophora, Hance. The following may belong here :—Ichang 
(A. Henry, 1538, 2023 !). 
ll. Dioscorea quinqueloba, Thunb. Fl. Jap. p. 150, non Fell. ; 
Maxim. Ind. Fl. Pek. in Prim. Fl. Amur. p. 478; Kunth, Enum. 
Pl. v. p.350; Franch. et Savat. Enum. Pl. Jap. ii. p. 46; Franch. 
Pl. David. i. p. 300; Banks, Icon. Kempf. t.15; Houtt. Handl. 
xi. p. 358, t. 74. figg. 1-2; Miq. in Ann. Mus. Bot. Lugd.- Bat, 
iii. p. 159. 
Cuint1: Peking (Bretschneider, 732 ! David, 14560!) ; 
SHINGKING: between Tungcheshien (James!); Huren: Chien- 
shih (4. Henry, 5870, 5870 B !), Patung (4. Henry, 4769, 
7358 !), Ichang (4. Henry, 183!). Mus. Brit.; Herb. Kew. 
Japan and Amur. 
