Ipomcea.] xc. convolvulace,e (baker and rendle). 151 



Upper Guinea. Senegambia : Ferrottet, 508! Seudelot, 751. Gambia, 

 Ingram ! Brown-Lester, 24 ! Sierr.i Leone, Barter, 1748 !■ Don ! Scott-Elliot, 

 3845 ! Reade ! Turner ! Smeathman ! Liberia : near Monrovia, Whyte ! Cape Palraas, 

 Vogel , 43 ! Gold Coast: Aburi, Johnson, 239! Asbanti, Cummins! Dahomey, 

 Burton ! Togo : Bismarckburg, Kling, 175 ; Biittner, 119, 221. Lagos, Barter, 

 20185 ! Dawodu, 18 ! Irving ! Southern Nigeria : Onitsa, Barter, 1748 ! 

 Cameroons, Bates, M ! .Dinklage, 218, 1148, Braun. Fernando Po, Vogel, 234 ! 



Nile Land. Uganda : Unyoro forest, Grant ! Ruchigga, 7000 ft., Bagshawe, 

 527 ! Musozi, Bagshawe, 9 ! Kavirondo, Whyte ! Scott- Elliot, 7103 ! 7406 ! 

 Ruwenzori, Scott-Elliot, 7981 ! 



Lower Guinea. Gaboon ; Sibange, Soyaux, 385 ! 398 ! Biittner, 378. 

 Lower Congo : Msuata, Biittner, 379 ; Kisantu, Gillet, 4496, 760 ; Bingila, Du- 

 puis ; Zobe, Dewevre, 246 ; Leopoldville, Luja I and without precise locality, 

 Laurent, Cobra, Descamps ; Smith, 63 ! Angola : Golungo Alto, Welwitsch, 6188 ! 

 Huilla, Welwitsch, 6123 ! and without precise locality, Curror ! Monteiro ! 



South Central. Congo Free State : various localities, Sens, 107 ! Biittner, 

 380 ; Pogge, 972, 1188, 1198, 2027. 



IMozamb. Dist. German East Africa : Zanguebar, Kirk, 77 ! Kilimanjaro 

 to 8400 f t., Meyer, 104, 303 ; Gonda (Igonda), Bbhm, 273 ; Ukira, Fischer, 414 ; 

 Rungwe Stock, 5500 it., Goetze, 1139 ; Kinga Mountains, Goetze, 1202. North 

 of Lake Nyasa, Thomson ! British Central Africa : Kambole, south-west of Lake 

 Tanganyika, 5000 ft., Nutt! Urungu; Fwambo, Nutt ! Rhodesia, Salisbury, 

 Rand, 561 ! 



Var. albiflora, Welw. ex Hiern in Cat. Afr. PI. Welw. i. 735. — Corolla, accord- 

 ing to Welwitsch, smaller than in the type, campanulate and white. No flower is 

 present in the specimens, but an unexpanded corolla measures nearly 1 in. long. 



Lower Guinea. Angola : Golungo Alto ; thickets between Bengo and 

 Sange, near Canaulo and Camilungo, Welwitsch, 6189 ! 



40. I. operosa, C. H. Wright in Kew Bulletin, 1897, 275. Stems 

 climbing, densely pubescent. Leaves distinctly petioled, cordate-ovate, 

 4-5 in. long, acute, upper face covered with short adpressed whitish- 

 yellow hairs, lower face shortly tomentose. Flowers many in a dense 

 head ; bract large, cymbiform, acute, clothed with long hairs, 

 especially at the base. Sepals unequal, narrowly linear-lanceolate, 

 acute, densely pilose, about 6 lin. long, the outermost 7 lin. Corolla 

 bright red, glabrous, not lobed, 14 in. long. Stamens half as long as 

 the corolla. — /. involucrata, var. operosa, Hallier f. in Engl. Jahrb. 

 xxx. 387. 



Mozamb, Dist. British Central Africa : Nyasaland ; Zomba, Kirk ! Whyte ! 

 and without precise locality, Buchanan, 370 ! 



A troublesome weed with a long spongy tap-root. 



41. I. pileata, Eoxb. Fl. hid. ed. Carey, ii. 94. Annual. Stems 

 very slender, twining, shortly pilose. Leaves cordate-ovate, acute, 

 entire, membranous, 1|— 2 in. long and broad, green and thinly hairy 

 above, paler and thinly hairy beneath ; petiole slender, as long as the 

 blade or shorter, pubescent. Peduncle J-2 in. long. Flowers few or 

 many in a dense head enclosed in a large foliaceous boat-shaped bract, 

 1^- in. or less in diam., with two cusps ; inner bracts narrowly elliptic to 



