192 XC. CUNVOLVULACEE (BAKER AND RENDLE). | [pomuea- 
brown, 4-valved; valves thick, ‘‘ testaceo-lignous.” Seeds 5 lin. long, 
clothed, except on the black glabrous back, with soft whitish-fulvous 
silky wool, 2 in. long. 
Nile Land. Somaliland: near Banas, Riva, 1437, 1438 partly. British East 
Africa : Athi Plains, Pospischil. 
133. I. stenosiphon, J//allier f. in Situngsber. Akad. Wiss. 
Wien. evii. 50. A shrub; stems terete, glabrous, some sterile,” 
slender, whip-like and climbing, with a smooth thin ochre-coloured 
separable bark ; others more robust, straight, erect, densely leaved and 
flowering, greyish, bark rugose. Leaves cordate-ovate, emarginate, 
mucronate, up to 24 in. long by a little over 2 in. broad, sparsely 
puberulous on the upper surface and on the nerves beneath ; lateral 
nerves about 10 each side of the flattened narrowly winged (on the 
lower surface) midrib, conspicuously reticulate beneath the meshes of the 
network conspicuously dotted with numerous dark circular glands; 
petiole slender, nearly as long as the leaf, glandular on each side below 
the blade. Peduncles on very short branchlets, solitary or few and 
fascicled and almost obsolete; pedicels #-2 in. long, conspicuously 
clavate in fruit. Sepals coriaceous, elliptic, obtuse or emarginate, with 
membranous pellucid margin, the outer much shorter, 4} to barely 1 in. 
long in flower; much enlarged in fruit becoming brittle and laxly 
enveloping the capsule. Corolla large, pale greenish-yellow or cream- 
colour, salver-shaped ; tube very narrow, 4—5 in. long, 1-1} lin. in diam. ; 
limb about 14 in. broad; midpetaline areas with white wool on the 
outside at the apex. Stamens and style projecting considerably from 
the tube ; anthers 2 lin. long. Ovary glabrous, 4-celled ; cells 1-ovuled. 
Capsule elongated cone-shaped, dirty brown, cuspidate with the long 
persistent style-base, 13 in. long, including the cusp (about 4 in. long), 
about } in. broad; pericarp thin, brittle, not splitting into valves, 3- 
to 1-celled by abortion ; septa thinly membranous not separating from 
the pericarp. Seeds oblong, about } in. long and } in. thick, obscurely 
obtusely trigonous, dirty brown, velvety with a tuft of longer ochre- 
coloured hairs around the hilum.—Rivea stenosiphon, Hallier 15 
Jahrb. Hamburg. Wissensch. Anstalt. xvi. Beih. 3, 15. Rivea (sect. 
Legendrea) sp., Hallier f. in Engl. Jahrb. xviii. 158. 
Wile Land. British East Africa : north of Taveta, Pospischil. 
Mozamb. Dist. German East Africa: Massaini, Fischer, 416 : Usagara; 
Mlali, Stuhlmann, 198; Pangusi, Stuhlmann,. 427; Muansa, Stuhlmann, 4151. 
British Central Africa: Rhodesia ; Matoppo Hills, 5000 ft., Eyles, 58! 
The corolla resembles that of J. Bona-nox, but is somewhat smaller ; there is no 
suggestion in the flower of a thickening of the pedicel which characterises the 
fruiting stage of that spec'es. Our plant is evidently very near J. longituba, 
Hallier f., but is distinguished by its more typically cordate leaves, rather longer 
corolla-tube ang exserted stamens and style. 
134. I. bullata, Oliv. in Trans. Linn. Soc. ser. 2. Bot. ii. 348, ¢- 62. 
Stems robust, woody, hollow, wide-climbing, at first slightly pubescent. 
Leaves distinctly petioled, 3-4 in. long and broad, cut down nearly to 
the midrib into 7-9 obtuse or subacute linear lobes, the longest ? 10- 
= 
