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which finds its allies in Hallier's group Cephalantha of the section 

 Pharbitis. 



Ipomoea Protea Eendle et Britten, sp. n. Frutex vel suffrutex 

 caulibus rugulosis elongatis prostratis ramosis; fohi8 breviter petio- 

 latis, florum alabastra excedentibus, oblongis, orbiculari-oblongis, 

 ovato-oblongis vel ovalibus, apice rotundis vel obtusia basi sub- 

 cordatis, supra scabridulis et sparsissime pilosis, infra puberulis; 

 pedicellis brevissimis, floribus solitariis vel binis vel dichasiis trifloris 

 vel multifloris ; pedunculis pedicellisque brevibus verruculosis, 

 bracteis parvis lanceolatis ; sepalis glabris, duo exterioribus minori- 

 bus, ovatis acutis, dorso verruculosis, interiorum margine pellucido ; 

 corolla tabescente vel nondum evoluta infundibuliformi (?) ealyce 

 duplo longiori vel supra; 'staminibus 5, 2 longioribus, basi tri- 

 angulari pilosa tubo affixis, antheris lineari-oblongis ; stigmate 

 didymo ; disco annulari. 



Hab. Quitage. Pungo Andongo, Weluritsch, 6192. 



The long spreading shoots reach a length of 5 ft. or more, are 

 well covered with leaves, and have a rugulose surface ; the shape of 

 the leaves varies from almost roundish through ovate and oblong 

 to oval, and the size from 1£ to 2^ in. in length, and from f to 

 2£ in. in breadth ; the petiole is \ in. long or less ; the leaves are 

 longer than the unopened flowers. The outer sepals are 5-6 lines, 

 the inner 7-9 lines long ; they are deep wine-red at the base, 

 inside glabrous and smooth, outside where exposed minutely war ted, 

 and more or less deep brownish in colour. Only one withered 

 corolla was present ; it had been apparently infundibuliform in 

 shape, and more than 1 in. in length ; in the bud it has a pointed 

 curving tip. The stamens are attached by a triangular hairy base 

 2 lines above the base of the tube ; the two longer filaments are 

 4 lines in lengtb, the anthers 2£ lines. 



This plant, or more correctly Welwitsch's No. 6192 in herb. 

 DeCandolle, is tentatively referred by Halher in Engl. Bot. Jahrb. 

 xviii. 109, to Convolvulus Canariensis L. ; Hallier states, however, 

 that the specimen bore neither flowers nor fruit. It is a true 

 Ijiomn,',/ of Hallier's section Leiocalyx, and allied to I. asm-ifolia 

 E. & S. 



Ipomoea arenicola Eendle et Britten, sp. n. Herba glabra 

 perennis radice tuberoso, caule brevi decumbente carnoso purpureo ; 

 foliis petiolatis infimis minoribus lanceolatis vel ellipticis saepissime 

 acutis, superne majoribus ovali-oblongis acutis, saturate-viridibus 

 quam petiola crassa quadruplo longioribus ; floribus in cymo multi- 

 floro e caulis basi nascente, vel axillaribus et solitariis vel dichasio 

 simplici ; pedunculis folia vix vel baud fequantibus, pedicellis 

 brevibus ; bracteis parvis triangulari-subulatis ut sepala verruculosis ; 

 sepalis ovatis vel anguste ovatis acuminatis apice voluto falcatis, 

 vineis, reliqua velut in I. Protea; corolla magna campanulari- 

 infundibuliformi (?) albido-violacea intus purpurea ; staminibus et 

 stigmate velut in /. Protea, antheris subsagittatis ; disco annulari 

 margine undulato ; capsula globosa fulva superne purpureo tincta, 

 seminibus breviter tomentosis. 



Hab. In sylvis arenosis, Cazella, Pungo Andongo, Oct. 18th, 

 1856, Welwitsch, No. 6180. 



