Landolphia. | LXXXIV. APOCYNACEA (STAPF). 59 
Lower Guinea. Gaboon: Fernand Vaz, Foret. 
This, like Z. Klainei, is called Ndjembo in the N’Coumi dialect, and Jumelle 
places it near that species. The very large leaves and absence of any indumentum 
distinguish it at once from that species. 
28. L. (?) lucida, X. Schwm. in Notizbl. Kéinigl. Bot. Gart. Berlin, 
i. (1897) 24. A scandent shrub, climbing by means of very sensitive 
inflorescences which act as tendrils, quite glabrous; branches slender, 
dark brown, at length rough from rather large lenticels. Leaves 
oblong to elliptic, obtuse or subacute, usually with a minute mucro, 
minutely cordate at the base, 2—5 in. long, 14-24 in. broad, thinly and 
rigidly coriaceous, glossy on both sides, dark brownish-green above, 
lighter below when dry; midrib and secondary nerves finely channelled 
above, very prominent below ; secondary nerves 8-10 on each side, 
straight, rather spreading, connected by bold marginal arches; reticu- 
lation close, marked and raised on both sides; petiole 2-3 lin. long. 
Panicles bearing small clusters of flowers at the ends of short spreading 
or recurved branches, peduncled, terminal or pseudo-axillary, very 
slender ; rhachis sometimes curled up into spiral coils; branches up to 
7 lin. long ; bracts small, scale-like. Calyx #~—1 lin. long; sepals lanceo- 
late-ovate or ovate, acute, quite glabrous, margins membranous. Corolla 
white, sweet-scented; tube very slender, 6 lin. long; lobes very narrow, 
linear, as long as or slightly shorter than the tube, with long flexuous 
cilia (almost fimbriate). Stamens inserted about 2 lin. below the mouth ; 
anthers I Jin. long. Ovary ovoid, quite glabrous, gradually passing 
into the style ; style filiform, thickened (articulate ?) below the middle, 
the whole pistil 54-6 lin. long. Fruit (quite young) globose.—Dewévre, 
Caoutch. Afr. Monogr. Landolph. 32; K. Schum. in Engl. & Prantl, 
Pflanzenfam. iv. ii. 130, and Ergiinz. Heft i. 56; Durand & Schinz, 
Etudes FI]. Congo, i. 189; Jumelle, Plant. 4 caoutch. et a gutta, 61; 
Warb. in Tropenpfl. iii. (1899) 314, and Kautschukpfl. 120; Mikosch 
in Wiesner, Rohstoffe, ed. 2, i. 363; Hallier f. Kautschuklianen in 
Jahrb. Hamburg. Wissensch. Anstalt. xvii. (1899), 3. Beih. 53, 85 
partly ; Henriques, Kautschuk, Tab. iv. Dictyophleba lucida, Pierre 
in Bull. Soc. Linn. Paris, 1898, 93. 
South Central. Congo Free State: Kassai region, Pogge, 1236! Lunda ; 
river woods near Mukenge, Pogge, 1038! 
Several other specimens have been referred to Z, lucida without, as it seems, 
sufficient justification. Among these Soyauxc 204, from the Munda District, Gaboon, 
has longer and comparatively narrower, strictly oblong leaves with long, narrow 
points, a somewhat different venation, and also a pear-shaped fruit long-beaked at the 
top and long-stipitate at the base, which peculiarities are not present in the young 
fruit of Z. lucida. Hallier also distinguished from the type a variety hispida from 
Derema in Usambara (Scheffler, 217 !), which has stiff hairs on the midrib of the 
leaves and the panicle. The leaves and inflorescences are otherwise quite like those 
of Pogge’s specimens; but the calyx-segments are in Scheffler’s plant also ciliate 
instead of perfectly glabrous and the corolla-tube is (according to the collector) 
blood-red. As Pogge’s specimens bear only fragments of flowers, it is impossible to 
decide definitely on the value of these differences. 
