Lpomea. | XC. CONVOLVULACEE (BAKER AND RENDLE). 137 
Bongo: Gir, Schweinfurth, 2531! Moru: Neangara, Petherick! Uganda, Wilson, 
120! Semliki ; Ruwenzori, Scett- Elliot, 8080! 
_ Lower Guinea. Island of St. Thomas, Don! Lower Congo, Burton! Sinith ! 
Dewevre, 897, Hens, A278! Angola: Golungo Alto; Pereira stream, Welwitsch, 
6144! Queta Mountains, Welwitsch, 6231! Canaulo, on the Ambaca road, Wel- 
witsch, 6232! River Delamboa, Welwitsch, 6196! 6233! 
South Central. Congo Free State: Upoto, Wilworth. Mtowa, Descamps. 
Mozamb. Dist. Zanzibar, Krause. German East Africa: north of Lake 
Nyasa, Thomson! Portuguese East Africa: near Lake Nyasa, Johnson, 396! 
Zambesi Delta; Vicente, Scott ! Zambesi, Webb! British Central Africa: 
Boruma, Menyharth, 1083! Nyasaland; Shire Highlands, Buchanan, 424! 
between Kondowe and Karonga, Whyte, 378! 
Also in Madagascar and through Tropical Asia to North Australia. 
3. I. leucanthemum, /allier f. in Engl. Jahrb. xviii. 124. A 
much-branched undershrub ; branches prostrate or ascending, half- 
climbing, slender, grey-pubescent. Leaves linear-oblong, 1-2 in. long, 
green and thinly hairy on both sides, cuneate or rounded or 
shortly cordate at the base, obtuse, minutely mucronate; petiole very 
Short. Flowers solitary in the axils of the leaves on very short hairy 
pedicels. Calyx hairy, 3 lin. long; sepals unequal, ovate- or oblong- 
lanceolate. Corolla funnel-shaped, white, very hairy outside, scarcely 
longer than the calyx. Stigma with two oblong lobes. Fruit and 
seeds not seen.—Dammer in Engl. Pfl. Ost-Afr. C. 331.  Calycanthe- 
ca leucanthemum, Klotzsch in Peters, Reise Mossamb. Bot. 244, 
Mozamb. Dist. Portuguese East Africa: Rio de Sena, Peters; Lower 
Zambesi ; near Tete, Kirk ! 
We have no authenticated specimens of Klotszch’s species. The sepals in the 
plant collected by Kirk are much less acute than represented in Klotszch’s figure, 
but the plant agrees in other respects. 
4. I. sulphurea, Hochst. ex Choisy in DC. Prodr. ix. 356, Annual. 
Stems slender, trailing, pubescent. Leaves entire, bluntly elliptic- 
ovate, obtuse, 1-2 in. long, usually shallowly cordate, slightly hairy on 
both surfaces ; petiole 3-6 lin. long. Flowers few or many in the 
axils of the leaves on short pedicels; peduncle almost suppressed. 
Bracts small, ovate, about 1 lin. long. Calyx hairy, 3-4 lin. long; 
Sepals ovate, blunt, the two inner rather narrower, lower half pale- 
coloured, upper half green and leaf-like, finally scariose. Corolla not 
exceeding the calyx, sulphur-yellow ; filaments slightly unequal; anthers 
cordate, Capsule globose, hairy, 3 lin. in diam, Seeds pubescent.— 
Hallier f, in Engl. Jahrb. xviii. 124. J. vagans, Baker in Kew 
Bulletin, 1894, 70, 
Upper Guinea. Senegambia, Perrottet! Lepriéur! Guinea, Isert! 
Wile Land. Kordofan; near Obeid, Kotschy, 273! Pfund, 47! 59! Abu 
Harasa, Pfund, 148 ! 
5. I. cynanchifolia, (.B. Clarke in Hook. f. Fl. Brit. Ind. iv. 208 
partly, Apparently annual. Stem climbing, slender, laxly hispidulose, 
