Strophanthus.'] lxxxiv. APOCYNACEiE (staff). 185 



20,. S. i-ntemackeAhxs^ Pax in Engl. Jahrb. xv. 37'>. An arboreous 

 shrub or a climber, quite glabrous (except the corolla) ; branches 

 reddish-brown, dotted with minute lenticels. Leaves ovate, 2-3 in. 

 long, 1^-1 J in. broad, rounded or subacute at the base, acuminate, 

 thin, membranous ; secondary nerves 5-6 on each side, not raised ; 

 reticulation faint ; petiole 4 lin. long. Cymes terminal, subsessile, 

 few- to 1 -flowered; bracts early deciduous; pedicels 3-4 lin. long. 

 Calyx 2J lin. long ; sepals ovate, acuminate. Corolla deep piu^ple and 

 minutely puberulous outside, orange inside ; infra-staminal part of tube 

 1^-2 lin. long, supra-staminal part wide, tubular, 5-0 lin. long ; lobes 

 attenuate from a lanceolate base into linear tails, l.V-l| in. long; 

 throat-scales linear from a broader base, 1 lin. long. Follicles woody, 

 conical, obtuse (Welwitsch). — Franch. in Nouv. Arch. Mus. Paris, 3 ser. 

 V. 287; Hiernin Cat. Afr. PL Weiw. i. 071; Gilg in Engl. Jahrb. 

 xxxii. 150. 



Xiower Cruinea. Angola : (iolungo Alto ; Mountains of Alto Queta, Wehrilschf 

 5999! 



27. S. congoensis, Franch. in Journ. de Bot. vii. 324. A much 

 branched small tree, quite glabrous; branches slender, brown, ofcen 

 once or twice forked. Leaves ovate or ovate-lanceolate, ll-'> in. long, 

 1-1 1 in. broad, rounded or subcordate at the base, shortly and obtusely 

 acuminate, thin, but rather firm ; secondary nerves 4 on each side ; 

 veins inconspicuous. Cymes terminal, shortly peduncled, few-flowered ; 

 bracts scarious, ovate, acuminate ; pedicels short. Calyx 1 i-2 lin. 

 long ; sepals ovate, acute. Corolla glabrous ; infra-staminal part 

 of tube 2 lin. long, supra-staminal part tubular- campanulate, 4}-5^} lin. 

 long ; lobes ovate, suddenly constricted into a linear tail 5-6 lin. long ; 

 throat-scales subulate, 1 J lin. long. Anthers glabrous, shortly acum- 

 inate. Ovary glabrous. — Franch. in Nouv. Arch. Mus. Paris, 3 ser. v. 

 28<^; Payrau, Strophanthus, 131, with flg. ; Gilg in Engl. Jahrb. 

 xxxii. 156. 



Xiower Guinea. French Congo : by the River Ogowe, Thollon. 



28. S. amboensiSy Engl, d- Pax in Engl. Jahrb. xv. 37i'>. A 

 very much branched glabrous shrub; old branches grey, rough, flower- 

 ing ones often repeatedly forked, short, brown, dotted with small 

 lenticels. Leaves ovate, Ij-lf in. long, J-J in. broad, rounded or acute 

 at the base, acuminate, firm, membranous ; secondary nerves about 5 on 

 each side, like the veins faint, but rather distinct ; petiole 2 lin. long. 

 Cymes terminal, often on very short lateral branches, shortly 

 peduncled or subsessile, few- to 1 -flowered ; bracts small, lanceolate; 

 pedicels up to 3 lin. long. Calyx 2-2h lin. long ; segments oblong- 

 lanceolate. Corolla glabrous without ; infra-staminal part of tube 2i 

 lin. long, brownish-red, gradually passing into the funnel-shaped or sub- 

 tubular supra-staminal part (j-^ lin. long ; lobes lanceolate, attenuate 

 into linear bright yellow tails, 2 in. long ; throat-scales short, linear- 

 oblong, puberulous. Anthers glabrous, tapering into a long fine 



