140 CXII. ARISTOLOCHIACEE (BAKER AND WRIGHT). [Aristolochia. 
Gynostemium subsessile. Stamens 12; anther-cells linear, half as long 
as the gynostemium. Style-arms subulate. 
Mozamb. Dist. Portuguese East Africa: Lower Zambesi; Shiramba, Kirk ! 
Lower Shire River, Moramballa, 3000 ft., Kirk ! 
11. A. Mannii, Hook. f. in Trans. Linn. Soc. xxv. 186. Stems 
woody, 10-15 ft. long, twining, rather thick, terete, glabrous. Leaves 
6 in. long, 4-6 in. wide, 5-lobed, cordate at the base, finely verrucose 
above, pubescent beneath especially on the prominent nerves ; terminal 
lobe oblong or obovate-oblong, more or less abruptly acuminate ; lateral 
lobes almost straight on the upper edge, curved below; basal lobes 
smaller than the others and more rounded; petiole stout, 1—2 in. long. 
Racemes short, few-flowered; bracts small, ovate, acuminate; pedicels 
14 in. long, finely pubescent. Perianth membranous, glabrous ; lower 
part obliquely ovoid-globose, 6 lin. long, hairy within; tube 24 in. long, 
4 in. in diam. at the base, 14 in. at the apex, slightly curved ; limb 
obliquely truncate, obscurely 3-lobed, not ciliate, but with small fascicles 
of hairs inside. Anthers 10, linear, half as long as the gynostemium. 
Stigmatic lobes 10, subulate. 
Upper Guinea, Southern Nigeria: Old Calabar River, Mann, 2323! Swan! 
Thomson, 69! Bonny, Kalbreyer, 62! 
12. A. triactina, Hook. f. in Trans. Linn. Soc. xxv. 186. Stem 
woody, climbing, 25 ft. high (Zann), smooth, shining, glabrous. Leaves 
3- (or obscurely 5-) lobed or subentire, cordate at the base with a deep 
sinus, glabrous, 8 lin. long, 7 lin. wide; terminal lobe oblong, acute or 
cuspidate; side lobes rounded, basal touching or overlapping; primary 
nerves 3-5; petiole 1-4 in. long. Flowers in short axillary racemes. Peri- 
anth: lower part obliquely ovoid, 14 in. long, 1 in. in diam.; tube curved, 
2 in. long, 9 lin. in diam. when pressed, terete, slightly contracted and 
ciliate at the throat ; lobes 3, subequal, patent, flat, triangular-caudate, 
acuminate, 2 in. long, ? in. wide across the base, quite glabrous or 
slightly ciliate on the margin. Gynostemium small, sessile ; anthers 10. 
Stigmatic lobes 10, subulate. Capsule 10-12 in. long, 1-1} in. in diam., 
with 6 conspicuous ribs, thickly coriaceous.—A. Schweinfurthii, Eng]. 
Jahrb. xxiv. 492. 
Upper Guinea. Southern Nigeria: Lagos, Moloney, 18! Itu, Cross River, 
Holland, 26! 
Wile Land. Uganda: Entebbe, 4000 ft., Mahon! 
Lower Guinea. Spanish Gaboon: Corisco Bay, Mann, 1851! 
South Central. Congo Free State: Monbuttu; Munza, Schweinfurth, 3507! 
The degree of lobing of the leaves varies greatly in this species. 
13. A. Zenkeri, Engl. Jahrb. xxiv. 490, t. 9. A woody climber. 
Stems up to 5U ft. long, compressed, tortuous. Leaves oblong, cusp!- 
date, 34 in. long, 1? in. wide, coriaceous, more or less verrucose above, 
