124 LXXXIV. APOCYNACE (STAPF). [ Tabernanthe. 
ovate, acute, very minutely ciliolate, with 1-2 glands inside the base. 
Corolla-tube subcylindric, narrowed from the middle upwards, 33-4 lin. 
long : lobes rotundate-obovate, 2-2} lin. long. Stamens inserted at the 
middle. Anthers 1} lin. long. Style 1} lin. long —T7. Jboga, Oliver 
in Hook. Ic. Pl. sub t. 2337 partly, not of Baillon. 
Lower Guinea. (aboon River, Mann, 943! 
This comes near to 7. Iboga, trom which it differs somewhat in the shape and 
venation of the leaves and the larger flowers. 
4, T. Iboga, Baill. in Bull. Soc. Linn. Paris, i. 783, not of Oliver. 
A small glabrous shrub, up to 5 ft. high ; stems from a large branched 
root ; branches slender, terete, pale or dark brown, with scattered 
wart-like lenticels. Leaves elliptic- or ovate- or obovate-lanceolate, 
acuminate at the tip, acuminate or acute at the base, 3-5 in. long, 
1-13 in. broad, herbaceous; secondary nerves oblique, gently curved, 
slender, 9-11; transverse veins more or less distinct, and almost at 
right angles to the secondary nerves ; petiole very slender, 1—14 lin. long 
Inflorescence subcorymbose or umbelliform, Jax, few- to 12-flowered, 
shorter than the leaves, more or less drooping, minutely bracteate ; 
peduncle filiform, 4-14 in. long; pedicels up to 4 lin. long. Calyx 
deeply 5-partite, 4-3 lin. long; sepals rotundate-ovate, acute, very 
minutely ciliolate, the inner with 1-2 glands inside the base, persistent 
and reflexed in fruit. Corolla white, spotted with pink; tube sub- 
cylindric, slightly narrowed from the middle upwards, 24 lin. long; 
lobes obliquely rotundate, not quite 14 lin. long. Stamens inserted at 
the middle of the tube; anthers over 1 lin. long. Style almost 1 lin. 
long. Fruit ellipsoid, sometimes crowned by the persistent style-base, 
9-12 lin. long; pericarp smooth, thin, crustaceous when dry. Seeds 
globose-ellipsoid, 3 lin. long ; testa corky; coarsely lamellate-rugose.— 
T. albiflora, Stapf in Kew Bulletin, 1898, 305, in De Wild. & Durand, 
Contrib. Fl. Congo in Ann. Mus. Congo, Bot. sér. 2, i. fasc. 1, 38, and 
in De Wild. & Durand, Ill. Fl. Congo in Ann. Mus. Congo, sér. 1, i. fase. 4, 
t. +1, and Relig. Dewevr. in Ann. Mus. Congo, Bot. sér. 3, fase. 2, 151. 
Lower Guinea. Gaboon: Libreville, Klaine, 428! and without precise 
locality, Klaine, 911! Cape Lopez, Griffon du Ballay, 327. 
South Central. Congo Free State : Coquilhatville, Dewévre, 684! 
Klaine’s 911, was distributed by Pierre as 7. Iboga, and said to be the “ Iboga” 
of the Gaboon people. It is the same as Klaine, 428. M. Hua of Paris, having bee? 
good enough to compare these specimens with Baillon’s type, confirms Pierre’s deter- 
mination. This excludes Miiller’s plant (figured as 7. Iboga in Hooker’s Ie. Pl. t 
2337) from this species. When I described 7. albiflora, 1 had not seen Klaine’ 
specimen, and mistook Miiller’s plant for the true 7. /boga. Although I have not 
Dewévre’s plant before me, from which I described J. albiflora, 1 have little doubt 
that it is identical with the true 7. Idoga. I only add that Dewévre describes the 
corolla-lobes as white with pink spots, Baillon merely as white. This is evidently 
also the plaut mentioned by Dybowsky and Landrin in their paper on Iboga and 
ibogaiue in Comptes-rendus Acad. Sc. exxxiii. 748. 
5. 'T. tenuiflora, Stupf in Kew Bulletin, 1894, 305. Branches 
brown, with few minute lenticels. Leaves broad-oblanceolate, acum 
