Merremia.| XC, CONVOLVULACEE (BAKER AND RENDiE). 105 
campanulate with very obtuse lobes, white, 2 in. long. _Anthers 
finally spirally twisted. Fruit and seeds unknown.— Hallier fon 
Jahrb. Hamb. Wiss. Anst. xv. 41. Zpomea bipinnatipartita, Eng). 
Jabrb. x. 246. 
Lower Guinea. (German South-west Africa: near Usakos, 2000-2600 ft., 
Marloth, 1289! near Otymbingue, Fischer, 101; and without precise locality, 
Luderitz, 118. 
7. M. pterygocaulos, Hallier f. in Engl. Jahrb. xvi. 552 and 
xvill. 113. Perennial, glabrous, the whole plant often reddish. 
Stem twining, distinctly winged. Leaves 2-4 in. long and broad, more 
or less deeply cordate, palmately 3-lobed to the middle or more deeply : 
median segment ovate more rarely lanceolate, with acute to aristiform 
apex; lateral segments similar but often unequally bilobed in very 
varying degree; petiole narrowly winged, shorter than the blade. 
Peduncles winged, generally 2-4 in. long, rarely less than 1 in.; 
cymes few- to many-flowered, rarely 1-flowered ; bracts small, subulate ; 
pedicels clavate, }-1 in. long. Buds ellipsoid to ovoid, blunt, densely 
Strigose. Sepals about 4. lin. long, broadly elliptic to orbicular, 
coriaceous with thin pellucid margin, much imbricated, sometimes 
minutely cuspidate. Corolla campanulate, 1}-1} in. long, white or 
cream with purple throat, sometimes sulphur-yellow ; midpetaline areas 
badly defined, shortly strigose above. Capsule globose, glabrous, barely 
6 lin.in diam. Seeds about the size of a pea, grey to blackish, glabrous 
or shortly strigose on the angles.—Hallier f. in Bull. Soc. Roy. Bot. 
Belg. xxxvii. 90, and in Engl. Jahrb. xxx. 386 ; Dammer in Engl. igi 
Ost-Afr, C. 330; Hiern in Cat. Afr. Pl. Welw. i. 7 27, with var. 
chrysantha (flowers sulphur-yellow or whitish-yellow) ; De Wild. Etudes 
Fi. Katanga, 116. Ipomea pterygocaulos, Choisy in DC. Prodr. ix. 381; 
A. Rich. Tent. Fl. Abyss. ii. 71. J. petersiana, Klotzsch in Peters, 
Reise Mossamb. Bot. 239, t. 38. Convolvulus pterygocaulos, Steud. in 
Schimp. Pl, Abyss. ii. no. 630. 
Upper Guinea. Sierra Leone: Kukuna, Scott-Elliot, 4507 Southern 
Nigeria ; Abokom-Ikura, Holland, 256! Cameroons: Yaunde, Zenker & Staudt, 
630! Fernando Po, Buchholz. 
Nile Land. Abyssinia: near Mai Dogale, Schimper, 630! mouth of the 
Bahr el Arab, Schweinfurth, 1188! Nile banks north of Gondokoro, Speke 4° 
Grant ! Uganda, Stuhlmann, 1361, Scott-Elliot, 7242! Whyte! 
Lower Guinea. Lower Congo: Stanley Pool, Hens, B, 336! Lemba, 
Dewevre, 365, 10028; Kisantu, Gillet, 336 partly, 912. Boma and Bingila, 
‘puis ; and without precise locality, Smith! Angola: Golungo Alto, Welwitsch, 
6143 ! 61641 61551 Malange, Gossweiler, 1106 ! : 
South Central. Congo Free State : Lomami River, Pogge, 1212. Katanga, 
Lukofu, Verdick, 586 3 Kasai Valley, Descamps. 
Mozamb. Dist. German East Africa: Kondeland, Goetze, 1338. Portuguese 
East Africa: Zambesi delta, Kirk! Gazaland, Wood, 5763! Hast of Lake 
Nyasa, Johnson, 131, British Central Africa: Boruma, on the Zambesi, Menyharth, 
1081! Nyasaland ; Tanganyika Plateau, Whyte! Shire Valley, Waller! and —_ 
out precise locality, Buchanan, 959 ! 1034! Rhodesia, near Victoria Falls, Alen, 39° 
Also in Madagascar. 
