188 xc. convolvulace,e (baker and rendle). [Ipomcea. 



Schweinfurth, 1096! Gazelle River, Schweinfurth, 1131 ! 1216! Bahr-el-Jebel, 

 Muriel, 68 ! Broun ! Uganda : Berkeley Bay, Scott-Elliot, 7068 ! 



Lower Guinea. St. Thomas Island, Don ! Lower Congo : by the Congo, 

 Smith ! Boma, Dewevre, 80. Angola : Pungo Andongo, Welwitsch, 6229 ! by the 

 River Quiie, Gossweiler, 1109 ! 



XVIozamb. Dist. German East Africa : Khutu; Kisaki Steppe, Goetze, 76 ; 

 Ugalla River, Bokm ; Bnkumbi, Stuhlmann, 828. Portuguese East Africa : east of 

 Lake Nyasa, Johnson, 152 ! 338 ! Zambesi Delta : Luabo River, Kirk ! banks of the 

 Inagna, Scott ! Katunga, Shire Valley, Scott 1 Kairuba Island, opposite Tete, 

 Kirk ! Muselo, Kirk .' British Central Africa : Boruma, on the Zambesi, Meny- 

 harth, 1071 ! Nyasaland, Buchanan ! Long Island, above Victoria Falls, JSyles, 

 140 ! Ngamiland, Lugarcl, 300 ! Lake JN' garni, McCabe, 16 ! 37 ! 



Also in the Mascarene Islands. 



124. I. hierniana, Rendle in Joum. Bot. 1901, 58. Stems robust, 

 softly woody, climbing, clothed like the leaves and calyx with very short 

 grey pubescence. Leaves papery, exactly cordate, acuminate, apex 

 weakly cuspidate, 2^-5 in. long, thinly pubescent to glabrescent on the 

 upper surface, minutely grey pubescent, especially on the veins beneath ; 

 petioles slender, about as long as the blade, pubescent like the leaf- 

 veins, inconspicuously glandular at the blade insertion. Peduncle very 

 short, 1-2-flovvered, -| in. long or less; pedicels ^ in. long; bracts 

 caducous, lanceolate, small, 1 lin. long. Sepals coriaceous, oblong, 

 obtuse, subecpial, -i- in. long, shortly grey tomentose on the back like 

 the peduncle and peduncles, edges glabrous. Corolla funnel-shaped, 

 glabrous, except at the tips of the midpetaline lobes, which bear dense 

 short hairy tufts, lh in. long. Filaments long. 



Upper Guinea. Cameroons : Bipinde, Zenker, 1614 ! 



125. I. Holnbii, Baker in Kew Bulletin 1894, 72. Perennial. 

 Stems slender, woody, twining, clothed with dense white pubescence. 

 Leaves entire, broadly cordate-ovate, obtuse, 1-2^ in. long, up to nearly 

 2 in. broad, densely pubescent on both surfaces ; petiole \-h in. long. 

 Flowers 1-3; peduncle slender, li-2 in. long, pubescent like the 

 pedicels ; pedicels short ; bracts elliptic, subfoliaceous, densely pubescent, 

 ^-h in. long. Calyx pubescent like the bracts, h in. long ; sepals 

 orbicular, obtuse, minutely mucronate. Corolla funnel-shaped, rose- 

 purple, 2-3 in. long; limb 2^ in. in diam. Fruit and heeds not seen. 



IVXozamb. Dist. British Central Africa : Southern Rhodesia ; Leshumo 

 Valley, Holub, 512 ! Panda ma Tenka, Holub, 969 ! 



126. I. rhodesiana, Rendle in Joum. Bot. 1901, 57. Perennial. 

 Stems probably climbing, reddish, grey-pubescent. Leaves shortly 

 petioled, cordate-ovate, obtuse, under 1 in. long, to about j? in. broad, 

 grey tomentose on both surfaces, with a fulvous tinge on the upper, the 

 curving lateral veins prominent beneath. Peduncle short, ^ in. long, 

 1-nowered ; bracts linear-oblong, small, 1 J lin. or less in length, remote 

 from the calyx. Sepals unequal, broadly ellipsoid or obovate, ^ in. 

 long, the two inner longer than the three outer. Corolla unknown. 

 Ovary glabrous. 



