7 Convolvulaceae. 
1079. (5). Ipomoea hederacea Jacq. Collect. I (1786), p. 124. 
— Je. tab. 36. — Ipomoea Nil, Roth, Cat. Bot. 1 36. — Hallier f. 
in Engl. Jahrb. XVII. 136. — Aschers.-Schweinf. Ill. Flor. d’Eg., p. 107. 
— I. scabra, Forsk. Pl. Aegypt-Arab. 44. — TI. githaginea, Hochst. 
in herb. un. itin. 1842, no. 784. Convolvulus Nil, Linn. Sp. Pl. ed. 2, 
219. — Bot. Mag. t. 188. — Pharbitis hederacea, Choisy in Mém. 
Soc. Phys. Genéy. VI. 440 (Cony. Or. 58), and in DC. Prodr. IX. 344. 
— P. Nil, Choisy 1. c. 843. — P. hispida, A. Rich. Tent. Fl. Abyss IL. 
65, not of Choisy. — P. purpurea, Aschers. in Schweinf. Beitr. FI. 
Aethiop. 96 excl. syn. — P. githaginea, Hochst. in herb. un. itin. 1844, 
no. 1446. — Annual. Stems slender, hairy, twining, hairs spreading. 
Leaves cordate-orbicular or cordate-ovate, acute, usually shallowly 
3-lobed, membranous, hairy, 21/,—1U0 cm wide; petiole about as 
long as the blade. Peduncle 1—5-flowered, about as long as the 
petiole; pedicels short; bracts small, linear. Calyx hairy, 1—3 em 
long; sepais lanceolate, with a long narrow point, lower broader 
portion generally long-hairy, narrower upper part sparsely and short- 
hairy. Corolla funnel-shaped, usually blue, with purple stripes 
5—8 cm long; limb 5 cm in diam. Capsule small, subglobose, 
3-celled. Seeds 6, smooth. — Flow. January to April. 
M. ma. M.p. N.d. N.f. N.v. Cultivated abundantly and rarely 
subspontaneous. 
Local name: batata (?). 
Widely spread throughout the Tropics. 
438. (6.) Cuseuta Linn. 
Calyx usually campanulate; sepals usually 5, imbricate, ovate, 
generally more or less united at the base. Corolla campanulate; 
lobes usually 5, longer or shorter than the tube, imbricate; tube 
usually appendiculate with 5 scales, placed beneath the lobes. 
Stamens inserted in the sinuses between the corolla-lobes or below 
them; filaments filiform or flattened; anthers globose or oblong. 
Ovary 4-ovuled, perfectly or imperfectly 2-celled; styles 2, free to 
the base or connate; stigmas capitate or linear. Capsule dry or 
fleshy, bursting irregularly or dehiscence circumscissile. Seeds gla- 
brous; embryo peripheric, filiform, entire. — Leafless parasites, with 
twining stems and small usually reddish-white flowers in clusters. 
Species about 80. Cosmopolitan. 
A. Styles 2. Stigmas elongated. Flowers in globular 
heads. 
I. Styles as long as the stigmas or shorter. Cap- 
sule opening by a lid. 
