190 xc. coxvolvulace^e (baker and rendle). [Ipomcea. 



Quizembo, Welwitsch, 6241 ! Barra do Bengo,Welivitsch, 6242 ! Pung© Andongo ; 

 Mata de Pungo, Welwitsch, 6163 ! Condo, Welwitsch, %%%% \ 



South Central. Congo Free State : Katanga ; Lofoi, Verdick. Sankuru, 

 Laurent. Lualaba Paver, Bogge ; Lulua River, Bogge. 



Mozamb. Sist. Portuguese East Africa : Zambesi Delta ; Kongone River, 

 Kirk ! 



Cosmopolitan in the tropics. 



Var. eriocarpa, Rendle. Leaves entire, cordate-ovate, acute. — I. camerunensis, 

 Taubert in Gartenfl. 1891, 393, t. 1352. T. eriosperma, P. Beauv. Fl. Ownr. ii. 73, 

 t. 105. /. paniculata, var. indivisa, Hallier f. in Bull. Herb. Boiss. v. 378, and 

 in De Wild. & Durand, Contr. Fl. Congo, 43 ; var. eriocarpa, O. Kuntze, Rev. Gen. 

 PI. ii. 445 ; Hallier f . in Engl. Jahrb. xviii. 150. 



Upper Guinea. By the sea from Chama, Gold Coast, to Formosa (Benin) 

 River in Southern Nigeria, Beauvois. Cameroons : Batanga, Dinklage, 770. Fer- 

 nando Po, Mann, 422 ! 



lower Guinea. Lower Congo: Dewevre. Gaboon: Munda, Soyanx, 389 ! 



129. I. marmorata, Britten <h Rendle in Journ. Bot. 1896, 36. 

 Stems woody, glabrous, grey puberulous at the extreme tip. Leaves 

 reniform or suborbicular from a reniform base, 3-5 in. broad, 2-2| in. 

 lon°-, apex rounded or retuse, veins sparsely tomentose on the upper 

 surface, conspicuously clothed with white tomentum on the lower, the 

 rest of the leaf almost glabrous, a pair of glandular areas just above the 

 oetiole-insertion on the under surface ; petiole nearly or quite as long as 

 the blade. Peduncles short, 1-flowered, | in. long; bracts deciduous. 

 Calyx glabrous ; pedicel a little over h in. long or nearly 1 in. long ; 

 sepals coriaceous, ovate-oblong, obtuse, the two outer rather shorter. 

 Corolla 5 in. long ; tube slender, |- in. in chain., about 3J in. long. 

 Stem dilated (withered in specimen). Stamens and style reaching to 

 the top of the tubular part of the corolla. — Hallier f . in Ann. Tstit. Bot. 

 Roma, vii. 232. 



Nile Iiand. Somaliland : Harar, Bobecchi-Bricchetti, 32. British East 

 Africa : Lake Stefanie, Donaldson- Smith ! 



130. I. grandiflora, Lam. III. i. 467. Stems wide-climbing, 

 smooth, or muricate with herbaceous papilla?. Leaves cordate- 

 orbicular, cuspidate, membranous, glabrous, 4-6 in. long and broad ; 

 petiole about as long as or shorter than the blade. Peduncles 1-3- 

 flowered ; bracts small, deciduous. Sepals coriaceous, broadly elliptic, 

 apex rounded, glabrous, much imbricate, f in. long. Corolla white ; 

 tube cylindrical, 2-| in. long, \ in. in diam. ; expanded limb about 3 in. 

 in diam. Capsule subglobose, 1 in. in diam. Seeds lenticular, with a 

 shaggy border and glabrous faces. — Hallier f. in Engl. Jahrb. xviii. 153. 

 /. glaberrima, Boj. Hort. Maurit. 228. Galonyction grandiflorum and 

 C. asperum, Choisy in DC. Prodr. ix. 346. C. comosperma, Boj. I.e.; 

 Choisy I.e. 



Mozamb. Sist. German East Africa : Rovuma Bay, Kirk ] 

 Also in Tropical Asia, Polynesia, and the Mascarene Isles. 



131. I. lapidosa, Vatke in Linncea, xliii. 507. A woody climber, 

 with elongated climbing stems, from which the leaves soon fall, and 



