Landolphia.] lxxxiv. apocynace^ (staff). 59 



Xomrer Guinea. Gaboon : Fernand Vaz, Foret. 



This, like L. Klainei, is called Ndjeinbo in the N'Coumi dialect, and Jumclle 

 places it near that species. The very large leaves and absence of any indumentum 

 distinguish it at once from that species. 



28. L. (?) lucida, K. Schum. in Notizhl. KOnigl 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, 1 J-2J 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 J-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 1 lin. long. Ovary ovoid, quite glabrous, gradually passing 

 into the style ; style filiform, thickened (articulate ?) below the middle, 

 the whole pistil 5|-6 lin. long. Fruit (quite young) globose. — Dew^vre, 

 Caoutch. Afr. Monogr. Landolph. 32 ; K. Schum. in Engl, k Prantl, 

 Pflanzenfam. iv. ii. 130, and Ergiinz. Heft i. 56; Durand & Schinz, 

 Etudes Fl. Congo, i. 189 ; Jumelle, Plant, a caoutch. et a gutta, 61 ; 

 Warb. in Tropenpfl. iii. (1899) 314, and Kautschukpfl. 120; Mikosch 

 in Wiesner, Rohstofie, ed. 2, i. 363 ; Hallier f. Kautschuklianen in 

 Jahrb. Hamburg. Wissensch. Anstalt. xvii. (1899), 3'. Beih. 53, 85 

 partly; Henriques, Kautschuk, Tab. iv. Dictyophleha lucida, Pierre 

 in Bull. Soc. Linn. Paris, 1898, 93. 



Soutb Central. Congo Free State : Kassai region, Pogge, 1236 ! Lnnda ; 

 river woods near Mukenge, Pogge, 1038 ! 



Several other specimens have been referred to L. lucida without, as it seems, 

 sufficient justification. Among these Sogaux 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 L. Iticida. 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 tlie 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. 



