384 CONVOLVULACEA, 
9. Ipomea batatas, Lam. Dict. vi. p. 14 (excl. syn. Feuillei); Descourt. Fl. 
Ant. viii. p. 70, t. 545; Meissn. in Fl. Bras. vii. p. 282; Griseb. Fl. Brit. W. Ind. 
p. 468. 
Convolvulus esculentus, Salisb. Prodr. p. 123. 
Batatas edulis, Choisy in DC. Prodr. ix. p. 338. 
The sweet potato is almost universally cultivated in hot countries; and it is also 
common ina wild state; but the origin of it is uncertain. It is supposed, however, 
that the Tropical-American J. fastigiata may be the parent. 
10. Ipomea bombycina, Benth. et Hook. Gen. Plant. ii. p, 873. 
Batatas bombycina, Choisy in DC. Prodr. ix. p. 340. 
Bombycospermum mexicanum, Presl, Reliq. Heenk. ii. t. 71. 
Mexico, on the western side (Henke). 
This may be a young plant of J. carnosa. 
11. Ipomoea bona-nox, Linn. Sp. Pl. p. 228; Cav. Ic. Pl. t. 300; Bot. Mag. 
t. 752; Meissn. in Fl. Bras. vii. p. 215; A. Gr. Synop. Fl. N. Am. ii. p. 209. 
Calonyction speciosum, Choisy in DC. Prodr. ix. p. 345, excl. 8. muricatum. 
Ipomea petiolaris, Don, Gen. Syst. iv. p. 275. 
FLoRIDA (indigenous ?)—Mexico, at the foot of San Felipe (Andrieux, 213), Orizaba 
(Botteri, 559), valleys of Mexico and Cordova (Bourgeau, 1302, 1732); Panama, Isle of 
Taboga (Sinclair).— Widely diffused in the Tropics. Hb. Kew. 
12. Ipomea brachypoda, Benth. Bot. Voy. ‘Sulphur,’ p. 135. 
Soura Mexico, Acapulco (Sinclair), valley of Cordova (Bourgeau, 17387); Panama 
(Seemann, 488, 489; Sinclair). Hb. Kew. 
13. Ipomea bracteata, Cav. Ic. Pl. v. p. 51, t. 447. 
Ipomea spicata, H. B. K. Nov. Gen. et Sp. iii. p. 112. 
Exogonium spicatum, Choisy in DC. Prodr. ix. p. 347. 
Exogonium bracteatum, Don, Gen. Syst. iv. p. 264. 
Exogonium olive, Barcena, Viaje a la Caverna de Cacahuamilpa, p. 28, cum ic. color. 
SoutH Mexico, Cuernavaca (Bilimek, 88; Bourgeau, 1246), Mazatlan (Coulter, 1338), 
without localities (Sinclair, Beechey, and others). Hb. Kew. 
14. Ipomoea brevipes, Mog. et Sessé in DC. Prodr. ix. p. 349. 
Mexico (Mogino). 
15. Ipomea capillacea, Don, Gen. Syst. iv. p. 267. 
Ipomea muricata, Cav. Ic. Pl. v. p. 52, t. 478, non Jacq. Hort. Scheenb. iii. t. 323. 
Ipomea armata, Reem. et Schult, Syst. iv. p. 214. 
Leptocallis quinata, Don, Gen. Syst. iv. p. 260. 
Convolvulus capillaceus, H. B. K. Nov. Gen. et Sp. iii. p. 97. 
Quamoclit pedata, Mart. et Gal. in Bull. Acad. Brux. xii. 2, p. 271; Walp. Rep. vi. p. 529?! 
Arizona ; New Mexico.—Nortu Mexico, Sonora (Thurber), region of San Luis Potosi, 
6000 to 7000 feet (Parry & Palmer, 626); Sour Mexico, Aguas Calientes (Hartweg), 
