Ipomoea.] xc. convolvulace^: (ba.ker and rendle). 145 



Lower Guinea. Angola ; swamp near Kitamba, JBuchner, 578 ; Pun»o 

 Andongo ; Sansamandu; Welwitsch, 6195 ! Luxillo, Welwitsch, 6223 ! 



Hallier has identified the Welwitsch numbers at the British Museum with his 

 /. hewittioides, which differs (from the description) in having a very short subterminal 

 peduncle (axillary in the penultimate leaf -axil) ; in the Welwitsch plants peduncles 

 arc present in most of the leaf-axils, and are generally long. We are unable to 

 follow Hallier's more recent placing of the species as a variety of I. crassipes, from 

 which it seems very distinct; it is more nearly allied to /. fiilvicaidis both in 

 leaf -form and in the dense several-flowered inflorescence. 



20. I. Scotelli, Rendle in Journ. Bot. 1901, 18. A low-growing, 

 perennial undershrub ; shoots 2-4 in. long, slender, spreading 

 flexuously from a stout woody rootstock, and, like the petioles, densely 

 covered with short stiffish spreading yellow-brown hairs. Leaves 

 truncate-cordate, 1-1-| in. long and generally as broad, apex rounded or 

 sometimes emarginate, densely covered on both surfaces, especially on 

 the veins, with short stiffish adpressed hairs ; petioles ^ to barely 1 in. 

 long. Flowers in axillary sessile dichasia, buds bluntly conical ; 

 bracteoles narrowly linear-lanceolate, barely 3 lin. long, hairy on the 

 back like the leaves and sepals ; pedicels 2 lin. long or snorter. Calyx 

 5 lin. long ; sepals densely minutely hirsute, the outer elliptic-subacute, 

 2 lin. broad, the inner linear-acute, less than i lin. broad. Corolla 

 purple, tubular-infundibuliform, barely 1 in. long ; tube barely 1 lin. 

 in diam. above the base ; miclpetaline areas minutely hirsute, con- 

 spicuously trinerved. Fruit not seen. 



XVIozamb. Dist. German East Africa : Urundi, 4000-5000 it., Scott-Elliot, 

 8373! 



27. I. GCnotherae,, Hallier f. in Engl. Jahrb. xviii. 125. Annual. 

 Stems many, ascending, pilose, 6-8 in. long. Leaves petioled ; basal 

 linear, 2h in. long, about 3 lin. wide ; cauline linear-oblong, 1^ in. long 

 and about 7 lin. wide, all subacute, repand (sometimes with one or two 

 teeth near the base), narrowed to the base. Peduncles 1-flowered, about 

 1 in. long. Sepals ovate, acuminate, subaristate, under 6 lin. long, 

 outer broader than the inner. Corolla purple, 1 in. long and broad. 

 Capsule glabrous. Seeds with white hairs. — Baker & Wright in 

 Dyer, Fl. Cap. iv. ii. 49. Convolvulus (Enotherce-, Vatke in Linnsea, xliii. 

 520. 



Nile land, British East Africa : Ukamba ; Kitui, Hildebrandt, 21Q1. 

 Also in the Transvaal and Natal. 



28. I. a dumb rat a, Rendle <£• Britten in Journ. Bot. 1894, 173. 

 SuffVuticose. Stems prostrate, covered with short whitish hairs, as are 

 the petiole and peduncle. Leaves shortly petioled, oblong, 6-9 lin. 

 long, 3-4 lin. broad, obtuse, truncate or slightly hastate at the base, with 

 the veins raised on the under surface and clothed with short white 

 hairs, densely spotted on both surfaces with minute sunken glands, as 

 are the bracteoles and sepals. Peduncles 1-2 -flowered, 3 lin. long • 

 bracteoles 2, narrowly linear-lanceolate, ciliate, 3 lin. long. Sepals 



VOL. iv. — SEC. 2. L 



