Tpomea. XC. CONVOLVULACE2% (BAKER AND RENDLE). 175 
p 
acuminate, 13-3 in. long, 4-9 lin. broad.—Z. aspericaulis, Baker in Kew Bulletin, 
1894, 70. 
Lower Guinea. Angola: Huilla, Welwitsch, 61200! 
93. I. bolusiana, Schinz in Verh. Bot. Verein. Brandenb. xxx. 271. 
Herbaceous, glabrous. Tuber about 2 in. in diam. Stem branching 
from the base; branches often prostrate and 2-3 yds. long. Leaves 
palmatisect ; segments linear, rather fleshy, often with irregularly 
scabrid revolute edges, the central segment up to 4 in. long, segments 
less than 1 lin. to 2 lin. broad; petiole about 6 lin. long. Pedicels 
1-flowered, 5-10 lin. long ; bracteoles small, Janceolate. Sepals lanceo- 
late, acuminate, glabrous, 6—8 lin. long. Corolla funnel-shaped, bright 
purple, above 3 in. long and above 2 in.in diam. Fruit and seeds 
unknown.—Hallier f. in Engl. Jahrb. xviii. 147, Bull. Herb. Boiss. vii. 
53 with vars. abbreviata and elongata, and in Baum, Kunene-Samb. 
Exped. 347. 7. angustisecta, Engl. Jahrb. x. 245, t. 7a; Baker & 
Wright in Dyer, FI. Cap. iv. ii. 49, partly. 
Lower Guinea. Angola: Mossamedes, Newton, 127. German South-west 
Africa: Amboland: Oshiheke and Olukonde, Schinz, 101! Rautanen, 176, 181; 
Hereroland: Fleck, 185a, 187a. Matungue River, 3500 ft., Baum, 299! Damara- 
land ; Een! Hoepfner, 94. Great Namaqualand: Rehoboth, Fleck, 45, 189a. 
Mozamb. Dist. South ‘Tropical Africa: Baines! Northern Kalahari 
Desert : near T’Klakane Pits, Lugard, 225! Botletle Valley, Zugard, 264. Mata- 
beleland, Elliott ! 
Also in Madagascar and the Kalahari region of South Africa. 
94. I. Batatas, Lam. Hneyel. vi. 14. Perennial, with a large 
white or red, rarely yellow, tuberous root. Stems climbing, glabrous 
or slightly hairy. Leaves membranous, glabrous, 3—4 in. long, and broad, 
very variable in shape, 3-lobed to tripartite, central lobe large ovate, sub- 
acute, lateral lobes rounded to acute, sometimes again divided, the blade 
becoming more or less palmately pentapartite, rarely subentire, with 
coarsely dentate or angled margin; base flat ; petiole long. Peduncle long ; 
cymes dense; pedicels short. Sepals subcoriaceous, oblong, shortly 
and abruptly acute, glabrous or with a few Jong soft hairs, 4~6 lin. 
long, two outer smaller than the three inner. Corolla reddish, cam- 
panulate-funnel-shaped, 14 in. long. Ovary 4-celled. Seeds glabrous. 
—Oliver in Trans. Linn. Soc. xxix. 115; Hallier f. in Engl. Jahrb. 
xvili. 138 and xxviii. 35; Hiera in Cat. Afr. Pl. Welw. i. 736; De 
Wild. & Durand in Bull. Herb. Boiss. 2 sér. i. 36. Batatas edulis, 
Choisy in DC. Prodr. ix. 338. 
Upper Guinea. Senegambia, Leprieur ; Perrottet, 513. 
Mile Land. Bahr-el-Jebel, Wuriel, 91! Uganda: Kavirondo: between Nandi 
and Mumias, Whyte ! 
Lower Guinea. Lower Congo: Kisantu, Gillet, 682; Boma, Naumann, 
195 ; Stanleypool, Hens, B, 336 partly. Angola: Icolo e Bengo; Prata, Welwitsch, 
6220! Loanda, Welwitsch, 6219! Golungo Alto, Welwitsch, 6173! Mossamedes, 
Welwitsch, 6134! 6135! 
South Central. Congo Free Slate : Upoto, on the Congo, Wilwerth ; basin 
of T anganyika, Descamps. 
Mozamb. Dist. German East Africa: Usambara; various localities, Ho/s?, 
