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



Nile Land. Uganda : Unyoro, upon and near surface rocks in the forest, 

 SpeJce Sf Grant ! 



This comes very near the Australian /. heteropJiylla, R. Br., with which it is 

 united by Hallier in Engl. Jahrb. xviii. 125. The seeds of the Australian plant are 

 slightly smaller, and have a mottled brown-black pubescence, whereas the seeds in 

 the African specimens bear a shorter uniform brown pubescence. 



11. I. leptocaulos, Hallier f. in Engl. Jahrb. xviii. 12G. Peren- 

 nial. Stems long, slender, climbing, like the whole plant sparsely and 

 minutely puberulous. Leaves long petiolecl, lj*-2^ in. long, f-l|- in. 

 broad at the base, deeply cordate-sagittate, acute, sometimes glabrous 

 above, pubescent beneath. Peduncle very short, 1-2-flowered ; pedicels 

 subclavate, up to G lin. long. Sepals linear-lanceolate, equal, pubescent, 

 glaucous green, 3 lin. long. Corolla under 1 in. long, pale red, funnel- 

 shaped. Capsule small, glabrous. 



Upper Guinea. Togo : near Bismarckburg, JBilttner, 365. 



12. I. Morsoni, Baker in Kew Bulletin, 1894, 71. Annual. Stems 

 very slender, twining, subglabrous. Leaves entire, cordate-ovate, 

 acuminate, sparsely hairy on both surfaces, up to 2J in. long, with a 

 broad rounded open basal sinus ; petiole 1-14; in. long. Flowers solitary 

 from the axils of the leaves on peduncles 3-4 lin. long. Calyx glabrous, 

 3 lin. long ; sepals ovate, acute to acuminate. Corolla funnel-shaped, 

 whitish, twice as long as the calyx. Fruit and seeds glabrous. 



Upper Guinea. Sierra Leone, Morson ! 



13. I. demissa, Hallier J. in Engl. Jahrb. xviii. 129. Perennial. 

 Stems slender, procumbent or fiexuose at the tip, glabrous. Leaves 

 shortly petioled, cordate-ovate, lj in. long, glabrous, ciliate ; petiole 

 clothed with minute spreading hairs. Peduncle 1-2-flowered, about 1 in. 

 long ; pedicels divaricate, subclavate, G-8 lin. long ; bracts minute, sub- 

 clavate. Sepals linear-lanceolate, acuminate, pubescent, 3 lin. long. 

 Corolla under 1 in. long, chamois yellow, funnel-shaped. — Hallier f. in 

 Engl. Jahrb. xxviii. 38 ; Dammer in Engl. Pfl. Ost-Afr. C. 331. 



IVIozamb. JMst. German East Africa : Uniamwezi ; Gonda (Igonda), Bdhm. 

 38. 



Hallier (in Engl. Jahrb. xxviii. 38) places this species between l.fragilis and /. 

 obscura in the section Leiocalyx, but the linear-lanceolate, very acute, shortly 

 cinereo-pilose sepals seem to remove it from this affinity. 



14. I. curtipes, Rendle. Annual. Stems slender, twining, finely 

 pubescent, with a faint reddish tinge. Leaves entire, linear-oblong 

 narrowing to the apex on the upper part of the shoot, becoming 

 cordate-ovate below, apex subacute, mucronulate, basal lobes rather small, 

 rounded, spreading, slightly pubescent on both sides, hairs adpressed, 1 4— 

 2 in. long ; petioles slender, 4-1 in. long. Flowers solitary in the axils 

 of the leaves; peduncles almost suppressed; bracts small, lanceolate, about 

 1 lin. long ; pedicels 3-4 lin. long. Calyx thinly pubescent ; sepals ovate, 

 obtuse, 2§-3 lin. long, the inner slightly narrower with shortly acumi- 

 nate apex. Corolla funnel-shaped, purplish, very hairy, G lin. long. 

 Filaments unequal, lf-2 lin. long, base slightly dilated and shortly hairy ; 



