Ipomoea.] xc. convolvulace.e (baker and rexdle). 175 



acuminate, l|-3 in. long, 4-9 lin. broad.— I. aspericaulis, Baker in Kew Bulletin, 

 1894, 70. 



Lower Guinea. Angola : Huilla, Welwitsch, 61205 ! 



93. I. bolusiana, Schinz in Verh. Bot. Verein. Brandenb. xxx. 271. 

 Herbaceous, glabrous. Tuber about 2 in. in cliam. Stem branching 

 from the base ; branches often prostrate and 2-3 yds. long. Leaves 

 palmatisect ; segments linear, rather fleshy, often with irregularly 

 scabrid re volute 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-fiowered, 5-10 lin. long; bracteoles small, lanceolate. 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. I. angustisecta, Engl. Jahrb. x. 245, t. 7a; Baker & 

 Wright in Dyer, FJ. 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 : Fen ! Hoepfner, 94. Great Xamaqualand : Rehoboth, Fleck, 45, 189«. 



Mozamb. Dist. South Tropical Africa: Baines ! Northern Kalahari 

 Desert : near T'Klakane Pits, Lugard, 225! Botletle Valley, Lugard, 264. Mata- 

 beleland, Elliott ! 



Also in Madagascar and the Kalahari region of South Africa. 



94. I. Batatas, Lam. Encycl. 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 long soft hairs, 4-6 lin. 

 long, two outer smaller than the three inner. Corolla reddish, cam- 

 panulate-funnel-shaped, lh in. long. Ovary 4-celled. Seeds glabrous. 

 — Oliver in Trans. Linn. Soc. xxix. 115; Hallier f. in Engl. Jahrb. 

 xviii. 138 and xxviii. 35 ; Hiern in Cat. Afr. PI. Welw. i. 730 ; De 

 Wild. &, Durand in Bull. Herb. Boiss. 2 ser. i. 36. Batatas edulis, 

 Choisyin DC. Prodr. ix. 338. 



Upper Guinea. Senegambia, Leprieur ,• Perrottet, 513. 



Wile Land. Babr-el-Jebel, Muriel, 91 ! Uganda : Kavirondo : between Nandi 

 and Mumias, Whgte .' 



Lower Guinea. Lower Congo: Kisantu, Gillet, 682; Boma, Naumann, 

 195 ,• Stanleypool, Sens, B, 336 partly. Angola : Icolo e Bengo ; Prata, Welwitsch, 

 6220 ! Loand.i, Welwitsch, 6219 ! Golungo Alto, Welwitsch, 6173 ! Mossamedes 

 Welwitsch, 6134 ! 6135 ! 



South Central. Congo Free Slate : Upoto, on the Congo, Wihverth ; basin 

 of Tanganyika, Descamps. 



IWozamb. 3>ist. German East Africa : Usambara ; various localities, Hoist, 



