168 xc. convolvulace^e (baker and kendle). \Ipomcea. 



Mozamb. Dist. lthodesia ; Buruw^yo, Sand, 365 ! Matoppo Hills, 4500 ft., 

 Eyles, 10y ! 



Also in the Transvaal. 



77. I. simonsiana, Rendle in Joum. Bot. 1894, 178. An annual 

 herb, branching just above the base. Sterns long, diifuse, climbing, 

 very slender, obscurely pubescent. Leaves thin, long-petioled, cordate- 

 ovate, acuminate., coarsely dentate, 1—2 in. long and broad, sparsely 

 pilose on both surfaces ; petiole slender, generally shorter than the 

 blade. Flowers solitary ; peduncle 3 lin. long or less. Bracteoles 

 minute, lanceolate ; pedicel stouter and longer than the peduncle, about 

 6 lin. long. Sepals spathulate, apiculate, 8-nerved, glabrescent, lower 

 portion subcoriaceous, broad upper portion herbaceous, 43, in. long, 

 the inner longer than the outer. Corolla almost salver-shaped, under 

 1 in. long, apparently a pale rose colour, glabrous ; lobes subacute. — 

 Hailier f. in Engl. Jahrb. xxviii. 45. 



Mozamb. Dist. Portuguese East Africa : Lower Zambesi ; Shupanga, Scott ! 

 British Central Africa: Boruma, on the Zambesi, Menyharth, 1086 ! Nyasaland ; 

 River Shire, Kirk ! Lake Nyasa, Simons ! 



78. I. lapathifolia, Hailier f. in Engl. Jahrb. xviii. 142. 

 Perennial. Stems slender, twining, glabrous. Leaves ovate or lanceo- 

 late, 2-4 in. long, obscurely pubescent on both surfaces, cuneate at the 

 base. Flowers few to many in a close umbellate cyme ; peduncle 1|— 3 

 in. long ; pedicels at most 6 lin. long; bracteoles minute, persistent, 

 ovate or lanceolate. Calyx glabrous, 8 lin. long; sepals oblong, blunt. 

 Corolla white, I4-II in. long, subcylindric in the lower half; ex- 

 panded limb 1 in. in diam. Capsule globose, glabrous, 3 lin. in diam. 

 Seeds glabrous, pale brown, ltj lin. long. — /. zambesiaca, Baker in Kew 

 Bulletin, 1894, 70, not of Britten. /. hellebarda, var. lapathifolia, 

 Hailier f. in Engl. Jahrb. xxviii. 44. 



Mozamb. JMst. German East Africa : ITgogo, Mubalala, Stuhlmann, 405. 

 Portuguese East Africa : Quilimane, Stuhlmann, 109. Lower Zambesi : Shupangu, 

 Kirk I Waller 1 Zambesi Delta, Kirk ! Scott ! 



The identification of I. zambesiaca with I. lapathifolia rests on Hallier's autho- 

 rity. We have not seen the specimens collected by Stuhlmann on which 2". lapathi- 

 folia was based. I am unable to follow Hailier in his later reduction of the species 

 to a variety of/, hellebarda, which seems amply distinguished by its larger white 

 corolla and velvety seeds. — A. B. R. 



79. I. humifera, Rendle & Britten in Joum. Bot. 1894, 177. 

 Perennial. Main stem trailing, slender, hairy ; branches long, very 

 slender, glabi-ous, ultimately climbing. Leaves cordate-ovate, acumi- 

 nate, membranous, rigid, glabrous, except on the edge and petiole, 

 those of the shoots 2-2| in. long. Flowers solitary ; peduncle glabrous, 

 shorter than the leaves ; bracteoles minute, subulate. Sepals subequal, 

 ovate, glabrous, 3 lin. long. Corolla between tubular and funnel-shaped, 

 bright purple, l-h—2 in. long. — Hiern in Cat. Afr, PI. Welw. i. 737. 

 I. Barteri, var. cordifolia, Hailier f. in Bull. Herb. Boiss. vi. 543. 



Lower Guinea. Angola : Pungo Andongo : Mata de Pungo, Welwitsch, 

 6177 ! Quibinda, Welwitsch, 6178 ! 



