Tahernanthe.] lxxxiv. apocynace^ (staff). 123 



lax, obscurely bracteate ; peduncle slender, up to 9 lin. long ; pedicels 

 slender, up to G lin. long. Calyx deeply o-partite, 1^- lin. lun^ ; sepals 

 ovate, acute, very minutely ciliolate, the inner with i-2 glands inside 

 the base. Corolla-tube wide ovoid, much narrowed above the middle, 2 J— 



3 lin. long; lobes rotundate-ovate, 2 J lin. long. Stamens inserted at 

 the middle; anthers IJ lin. long. Style not quite 1 lin. long — T. Iboga, 

 Oliver in Hook. Ic. PI. t. 2337, only the plant figured, not of Baillon ; 

 Kew Bulletin, 1895, 37, with plate, partly. 



Ibower Guinea. Congo : without precise locality, Miiller ! 



T. JBocca distinctly differs from T. Iboga in the more robust inflorescences, 

 larger flowers and much inflated base of the corolla-tube. It is called " Bocca " on 

 the lower Congo. 



2. To subsessiliSy Stapf. A shrub or small tree, up to 15 ft. 

 high, with dichotomous branches ; bark pallid ; lenticels fev-. Leaves 

 subsessile or sessile, oblanceolate to subobovate, subabruptly acuminate 

 (acumen acute, sublinear, up to 5 lin. long), narrowed towards the base, 

 and shortly and abruptly rounded at the base, 3-4 in. long, 1-1 1 in, 

 broad, herbaceous or thinly coriaceous, soft, rather glossy above whgn 

 alive, dull when dry, paler and slightly glaucous beneath ; secondary 

 nerves 10-12 on each side, very oblique, gently curved ; transverse 

 veins more or less at right angles to the secondary nerves ; petiole up 

 to J lin. long or absent. Inflorescence^ geminate from the branch- 

 forks, few-flowered, lax, subumbelliform, sometimes drooping, mirwtely 

 bracteate or ebracteate; peduncle filiform, up to 1 in. long; pedicels up 

 to 6 lin. long. Calyx yellowish, almost Ij lin. long, deeply 5-partite ; 

 sepals ovate, acute, minutely ciliolate with 1-2 glands inside the 

 base. Corolla sulphur-yellow ; tube ovoid at the base, narrowed from 

 the middle upwards, 2 J lin. long ; lobes obliquely rounded, as long as 

 the tube. Stamens inserted at the middle; anthers 1 lin. long. Style 

 scarcely 1 Im. long. Fruit of the shape and colour of a lemon, distinctly 

 apiculate, 1 in. long. — T. Ihoga, Oliver in Hook. Ic. PI. sub t. 2337 

 partly, and in Kew Bulletin, 1895, 37 partly ; Hiern in Cat. Afr. PI. 

 Welw. i. 667, not of Baillon. 



Ziower Guinea. Angola: Pungo Andongo ; in the thickets of Barrancos da 

 Pedra Songue, Welwitsch, 5950 ! forests in the Presidium, Welwitsch, fruit, 728 ! 



This comes very near to T. Bocca, and differs mainly in the shape of the leaves, 

 which are often strictly sessile. 



3, T. Mannii, Stapf. A small, glabrous shrub ; branches very 

 islender, greenish- brown, with scattered wart-like lenticels.. Leaves 

 oblong, long acuminate (acumen subobtuse, sublinear up to 9 lin. long), 

 acute at the base, 3-5J in. long, IJ-lf in. broad, herbaceous, thin ; 

 secondary nerves much spreading, curved, 10-11 on each side, very 

 slender; transverse veins subhorizontal, faint; petiole {,-1 lin. long or 

 hardly any. Inflorescences geminate from the branch-forks, few- 

 flowered, umbelliform or subcorymbose, lax, shorter than the leaves, 

 ebracteate ; peduncles finely filiform, IJ in. long; pedicels very slender, 



4 lin. long. Calyx 5-partite almost to the base, 1 lin. long ; sepals 



