124: Lxxxiv. APOCYNACE.E (stapf). \ Tahemantke. 



ovate, acute, very minutely ciliolate, with 1-2 glands inside the base. 

 Corolla-tube subcylindric, narrowed from the middle upwards, 3^-4 lin. 

 long ; lobes rotundate-obovate, 2-2| lin. long. Stamens inserted ^t the 

 middle. Anthers IJ lin. long. Style H lin. long. — T. Iboga, Oliver 

 in Hook. Ic. PI. sub t. 2337 partly, not of Baillon. 



Iso-wer Guinea, tiaboon River, Mann, 943 ! 



Tliis toines near to T. Iboga, from which it differs somewhat in the shape and 

 venation of the leaves and tbe larger flowers. 



4. T. Zboga, 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-lf 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, 1-1 J lin. long 

 Inflorescence subcorymbose or umbelliform, lax, few- to 12-flowered, 

 shorter than the leaves, more or less drooping, minutely bracteate ; 

 peduncle filiform, J-lJ in. long; pedicels up to 4 lin. long. Calyx 

 deeply 5-partite, J-f 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 *vith pink; tube sub- 

 cylindric, slightly narrowed from the middle upwards, 2 J lin. long; 

 lobes obliquely rotundate, not quite 1 J 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. alhiflora, Stapf in Kew Bulletin, 1898, 305, in De Wild. & Durand, 

 Contrib. Fl. Congo in Ann. Mus. Congo, Bot. ser. 2, i. fasc. 1, 38, and 

 in De Wild. & Durand, 111. Fl. Congo in Ann. Mus. Congo, ser. 1, i. fasc. 4, 

 t. 41, and Reliq. Dewevr. in Ann. Mus. Congo, Bot. ser. 3, fasc. 2, 151. 



]jO\irer Guinea. Gaboon: Libreville, Klaine, 428! and without precise 

 locality, Klaine, 911 ! Cape Lopez, Griffon du Ballory, 327. 



Soutb Central. Congo Frfee State : Coquilhatville, JDetr^ure, 684 ! 



Klaine's 911, was distributed by Pierre as T. Ihoga, and said to be the " Iboga" 

 of the Gaboon people. It is the same as Klaine, 428. M. Hua of Paris, having been 

 good enough to compare these specimens with Baillon's type, confirms Pierre's deter- 

 mination. This excludes Miiller's plant (figured as T. Iboga in Hooker's Ic. PL t. 

 2337) from this species. When I described T. albijlora, I liad not seen Klaine's 

 specimen, and mistook Miiller's plant for the true T. Iboga. Although I have not 

 Dewevre's plant before me, from which I described T. albijlora, 1 have little doubt 

 that it is identical with the true T. Iboga. 1 only add that Devvevre describes the 

 corolla-lobes as white with pink spots, Baillon merely as white. This is evidently 

 ;ilso the plant mentioned by Dybowsky and Landrin in their paper on Iboga and 

 ibogaine in Comptes-rendus Acad. Sc. cxxxiii 748. 



5. T. tenuiflora, Stapf in Kew Bulletin, 1894, 305. Branches 

 brown, with few minute lenticels. Leaves broad-oblanceolate, acumi- 



