Ipomcea.] xc. coxvolvulace^e (baker and rendle). 157 



long. Flowers small, subsessile in long-peduncled axillary heads, 

 clothed with a whitish tomentum ; peduncles strong, often bent, up to 

 4 in. long; bracts small, ovate-lanceolate, acute, margin white, densely 

 clotted with black glands; the two outer bracts 5 lin. long by 1^- lin. 

 broad. Sepals ovate-lanceolate, subequal like the bracts but a little 

 smaller, about 3 lin. long and 1 lin. broad. Corolla funnel-shaped, 

 8 lin. long, clothed with white woolly hairs outside below the lobes. 

 Capsule globose, densely pubescent. 



Upper Guinea. Cameroons : Yaunde, Zenker, 651. 



Very nearly allied to 1. Wightii and /. elythrocephala, but easily distinguished; 

 by the smaller bracts, sepals, and corolla. Also characterised by the dense black 

 glandular dots on the bracts and sepals. 



54. I. elythrocephala, Hallierf. in Engl.Jahrb. xviii. 134. Stems 

 slender, widely climbing, more or less densely covered, especially on the 

 younger parts, with long spreading tawny hairs. Leaves cordate-ovate, 

 shallowly palmately 3-5-lobecl, 1|— 3 in. long and broad, green and 

 thinly hairy above, matted with white tomentum beneath, with short 

 adpressed tawny hairs marking out the veins ; end lobe deltoid ; side 

 ones rounded below, more or less coarsely dentate above ; petiole as 

 long as the blade. Peduncle generally about as long as the subtending 

 leaf ; flowers in a dense head ; bracts small, linear-oblong to lan- 

 ceolate, obtuse, persistent, the two lowest and largest about 6 lin. long,, 

 mottled like the leaves with white tomentum beneath, margin and 

 lower portion of back bearing the characteristic yellow-brown stiffish 

 hairs ; sepals linear-lanceolate, subacute, barely 6 lin! long, hairy like 

 the bracts ; corolla funnel-shaped, 2 in. long, 1|— 2 in. in diam. at the 

 throat ; midpetaline areas with short soft woolly hairs ; fruit and 

 seeds not seen. — Hallier f. in Comptes-Rendus Soc. Bot. Belg. xxxvi. 

 81 (elytrocephala), and in Bull. Soc. Bot. Belg. xxxvii. 94 ; Henriq. in 

 Bull. Soc. Brot. xvi. 68 ; Hiern in Cat. Afr. PI. Welw. i. 735. 



lower Guinea. Lower Congo : Bingila, Dupuis. Angola : Golungo Alto, 

 Camihmgo, Welwitsch, 6184 ! near Ndelle, Welwitsch, 6185! Canaula, Welwitsch , 

 6183 ! 



South Central. Congo Free State : by the Lovnami River, Pogge, 1142 ! 

 Angola : Lunda ; between the River Luachim and Quikimbo, Marques, 329. 



55. I. Wightii, Choisy in DC. Prodr. ix. 364. Perennial. Stems 

 slender, twining, clothed with dense short brownish hairs. Leaves cor- 

 date-ovate, more or less shallowly 3-lobed, 2-4 in. long and broad, green 

 and more or less hairy above, hairs short, adpressed, clothed with white 

 tomentum beneath, the veins marked out with stiffish yellowish adpressed 

 hairs ; side lobes rounded ; end lobe deltoid, all entire ; petiole hairy, 

 1-2 lin. long. Peduncle 1-3 in. long, hairy like the stem ; flowers in a 

 dense head ; bracts lanceolate, 6 lin. long, white beneath, back minutely 

 hirsute with short yellowish hairs, sides and margins glandular hairy. 

 Calyx hairy like the bracts. Sepals linear-lanceolate, acute, 6 lin. long. 

 Corolla rose-red, funnel-shaped, 1-1^- in. long; throat 1— li in. in diam. 

 Capsule small, globose, fragile, pubescent. Seeds glabrous, thinly white- 



