100 XC. CONVOLVULACEE (BAKER AND RENDLE). — [Calystegia. 
the base. Corolla broadly campanulate, nearly 1 in. long and broad. 
Filaments dilated at the base. Ovary oblong, 1-celled. Stigmas 
lanceolate-—Choisy in DC. Prodr. ix. 434. Hailier f. in Engl. Jahrb. 
xviii. 111. C. abyssinica, Engl. Hochgebirgsfi. Trop. Afr. 547. 
Wile Land. Abyssinia: near Mamberke, 5700 ft., Schimper, 1357 ! 
Also in India, China, and Japan. 
Imperfectly known species. 
2. C. ochroleuca, Bojer, Hort. Maurit. 231. A perennial climber. 
Mozamb. Dist. Zanzibar, ex Bojer. 
Probably not a Calystegia. 
18. HEWITTIA, Wight et Arn.; Benth. et Hook. f. Gen. PI. ii, 873, 
Sepals foliaceous, unequal, outer much broader than the inner. 
Corolla campanulate, not lobed, 5-angled, plicate. Stamens inserted 
low down in the corolla-tube; filaments dilated at the base; anthers 
oblong. Pollen smooth, polyhedral. Ovary hairy, 1-celled with an 
imperfect septum, 4-ovuled; style filiform; stigmas 2, ovate-oblong. 
Capsule globose, 4-valved. Seeds dark, glabrous.— A climbing perennial 
herb, with more or less ovate-cordate leaves and rather small flowers 
singly or in small clusters, pale yellow or white, with a purple eye. 
A single species spread through the tropics of the Old World, reaching Natal 
and Madagascar. 
An earlier name for this genus is Shutereia, Choisy in Mém. Soc. Phys. Genéve, 
vi. ii. (1834), 486, Hewittia, having been published in 1837 (Madras Journ. Lit. and 
Sci. v. 22). The earlier name is not adopted, as it is too much like Shuteria, @ 
genus of Leguminose, published by Wight & Arnott in the same year (Prodr. 207); 
but presumably earlier in the year. 
1. H. bicolor, Wight in Madr. Journ. Sci. v. 22. Stems slender, 
twining, herbaceous, more or less pubescent. Leaves cordate-ovate, 
acute or obtuse, base entire or forming a pair of blunt-rounded lobes, 
sometimes grossly dentate, 2—5 in. long, green and varyingly pubescent 
on both surfaces; petiole 1-2 in. long. Flowers 1 or few in a dense 
head, on a long or short peduncle; bracts small, foliaceous, persistent. 
Calyx more or less hairy, about 6 lin. long ; sepals herbaceous, lowe? 
portion paler, upper green foliaceous; outer ovate, inner lanceolate. 
Corolla 1 in. long, yellow, with a purple eye; midpetaline areas densely 
hairy. Capsule small, subglobose, hairy, 3 lin. in diam.—Benth. in 
Hook. Niger Fl. 468 ; Klotzsch in Peters, Reise Mossamb. Bot. 242; 
Oliver in Trans. Linn. Soc. xxix. 117; Baker & Wright in Dyer; Fi. 
Cap. iv. ii. 68. H. asarifolia, and H. hirta, Klotzsch lic. H. sublobata, 
O. Kuntze, Rev. Gen. ii. 441; Hallier f. in Engl. Jahrb. xviii. 111; 
Durand & Schinz, Etud. Fl. Congo 203. H. barbeyana, Chodat & 
Roulet in Bull. Herb. Boiss. i. 192. Convolvulus bicolor, Vahl, Sym: 
ii. 25. C. involucratus, Willd. Sp. Pl. i. 845; Schum. & Thonn. Beskr. 
Guin. Pl. 93. Shutereia bicolor, Choisy in Mém. Soc. Phys. Genéve, vi. 
