Tpomea. | XC. CONVOLVULACEE (BAKER AND RENDLE), 153 
44. I. chloroneura, Hallier f. in Engl. Jahrb. xviii. 132. 
Annual. Main stem erect, a few inches high, branched from the base ; 
branches widely spreading, prostrate or ascending, and again branched ; 
branches and branchlets especially when young bearing, like the 
petioles and peduncles, dense adpressed short white hairs and longer 
spreading golden-yellow hairs. Leaves entire, oval, obtuse, 1-2} in. 
long, up to 13 lin. broad, generally narrower, when young bearing 
dense adpressed white hairs above, similarly but still more densely 
hairy beneath, with a line of golden hairs on the veins and margin ; 
older leaves less densely and conspicuously hairy ; petiole 3-6 lin. long. 
Peduncles 1-1} in. long, increasing to 2} in. or more in fruit. Flowers 
few in a small dense head ; outer bracts foliaceous resembling the young 
leaves in form and covering, but smaller, about 6 lin. long (including 
the stalk), persisting and enlarging in fruit (to 1 in.). Sepals sub- 
equal, elliptic-lanceolate, 3 lin. long, lower half with thinner glabrous 
edges, thicker median portion prolonged above into an almost filiform 
densely hairy tail. Corolla funnel-shaped, ‘whitish or very pale 
yellow” (Welwitsch), a little longer than the calyx; midpetaline areas 
well-defined, bearing short white hairs, which also project from the tip 
of the blunt corolla-lobe. Capsule globose, glabrous, 3 lin. in diam. 
Seeds with a pale fawn-coloured silky pubescence.—Hiern in Cat, Afr. 
Pl. Welw. i. 734, 
Lower Guinea. Angola: Pungo Andongo; by the river Cuanza, near Lombe, 
Welwitsch, 6181! Huilla; about Lopollo, Welwitsch, 6132! by the Kuito River, 
between Kutue and Sobi, Baum, 755! 
Mozamb. Dist. British Ceutral Africa: Ngamiland; Botletle Valley, 
Lugard, 190! 
45. I, argentaurata, Hallier f. in Engl. Jahrb. xviii. 132. In 
habit and indumentum closely resembling /. chloroneura, but much 
larger. Leaves shortly petioied, oblong with a subcordate base and 
rounded mucronate apex, up to 24 in. long by 7-1} in. broad, densely 
strigose on the upper surface and deep green, silvery-silky below, veins 
contrasting less with the intervening leaf-space, than in /. chloroneura. 
Heads of flowers much larger than in J. chloroneura, densely strigose, 
as is sometimes also the stem, with long golden-yellow hairs. Bracts 
about 1 in. long, hairy like the calyx. Sepals linear-lanceolate or almost 
linear, acuminate, about & lin. long, silky white on back with yellow 
strigose margin. Corolla large, funnel-shaped, entire, whitish, 2.1n: 
long, nearly 13 in. wide; midpetaline areas adpressed, hirsute. Capsule 
glabrous ; seeds covered with a dense dark brown pubescence.—/. 
“mena, Benth. in Hook. Niger Fl. 466, not of Choisy. 
Upper Guinea. Togo: between Misshdle and Bismarckburg, Biittner, 746. 
Lagos: Ado, Rowland! Northern Nigeria: Zungeru, Elliott, 16! Nupe, Barter, 
1031! Quorra, Vogel, 123 ! 
Closely allied to 7. chloroneura, but differing in its much larger flowers and 
flower-heads, leaves with subcordute base, &c. 
