158 93. CONVOLVULACER. 
(Wilford!); Kwaxaruxa: Macao (Silva ex Henriques); Hat- 
NAN: Hoihow (Hancock!). Mus. Brit.; Herb. Kew. 
Sandy sea-shores, including the most remote islands throughout 
the tropics, and extending to some subtropical regions. 
5. Ipomea Bona-nox, Linn. Sp. Pl. ed. 2, p. 228; Benth. FI. 
Hongk. p. 238; Clarke in Hook. f. Fl. Brit. Ind. iv. p. 197; 
Bot. Mag. t. 752. 
Calonyction speciosum, æ. vulgare, Choisy in DC. Prodr. ix. p. 345. 
Honexone (Hance! Urquhart!). Mus. Brit.; Herb. Kew. 
Now generally spread over the tropies, but supposed to be a 
colonist in Asia. 
6. Ipomeea carnosa, R. Br. Prodr. Fl. Nov. Holl. p.489; 
Benth. Fl. Austral. iv. p. 420 ; Clarke in Hook. f. Fl. Brit. Ind. 
iv. p. 213. 
Batatas littoralis, Choisy in DC. Prodr. ix. p. 337. 
Batatas acetosefolia, Choisy, loc. cit. p. 338. 
Ipomoea reptans, Hook. et Arn. Bot. Beech. Voy. p. 267, pro parte, non 
Choisy. 
Formosa: Takow (Playfair!); Kwanerune: Pakhoi (Play- 
fair!); Lucuv ArcHIPpeLtago (Beechey !). Herb. Kew. 
Sea-shores throughout the tropics and in some subtropical 
regions. 
7. Ipomoa chryseides, Ker in Bot. Reg. t. 270; DC. Prodr. 
ix. p. 882; Benth. Fl. Hongk. p. 239; Henriques in Bol. Soc. 
Brot. iii. p. 146 ; Clarke in Hook. f. Fl. Brit. Ind. iv. p. 206. 
Formosa: Taiwan (Playfair!); Kwaneruna: Whampoa 
(Hance, 3380 !), Lantao island (Ford!) ; Honexone (Hance ex 
Bentham). Mus. Brit.; Herb. Kew. 
Widely spread in the tropics of the Old World. 
8. Ipomea congesta, R. Br. Prodr. Fl. Nov. Holl. p. 485; 
DC. Prodr. ix. p. 369; Benth. Fl. Austral. iv. p. 417. 
Pharbitis insularis, Choisy in DC. Prodr. ix. p. 341. 
Ipomoea insularis, Steud. ex Choisy, loc. cit.; Maxim. in Mél. Biol. xil. 
p. 497. 
Formosa (Oldham, 345! Swinhoe!); Praras IsnaND (Wil- 
ford'); Lucuv AncurPELAGO (Wright!). Herb. Kew. 
Japan, Australia, and Polynesia. 
Hardly different from Z. hederacea, Jacq. The specimens from 
Pratas Island are tomentose. 
