168 LXXXIV. APOCYNACE (STAPF). [ Strophanthus, 
rarely obtuse. Stamens inserted at the upper end of the cylindric 
portion of the corolla-tube ; anthers conniving in a cone and projecting 
into the widened part of the tube, lanceolate, acuminate or sometimes 
produced into a long bristle, sagittate; wings long, firm, obtusely 
edged ; tails short ; foot of connective with a central tuft of closely 
packed hairs in the upper part and a more or less hairy longitudinal 
crest below it; filaments distinct but short, filiform, passing into a 
prominent, more or less hairy ridge decurrent on the corolla-tube. 
Disc 0. Carpels 2, free; style filiform; stigma capitate, 5-grooved, 
with a membranous reflexed frill at the base, and a minutely bifid 
apiculus ; ovules numerous, pluriseriate. Mericarps follicular, oblong 
or spindle-shaped, divaricate. Seeds spindle-shaped, slightly com- 
pressed, with an apical plumose awn and a deciduous basal coma ; endo- 
sperm scanty, fleshy ; cotyledons oblong, plano-convex ; radicle short.— 
Shrubs, often scandent, glabrous or more or less hairy, with persistent 
or deciduous foliage. Leaves opposite, rarely ternate ; axillary stipules 
0); axillary glands subulate or conical, 2-6, rarely more, at the base of 
each petiole. Inflorescences terminal, often on the ends of short 
branches, corymbose, many- or few-flowered or reduced to solitary 
flowers ; flowers mostly showy. 
Species about 40 in tropical and South Africa and tropical Asia. 
An elaborate bibliographical index of the papers bearing on Strophanthus may 
be found in Payrau, Strophanthus, (1900), 165-173. 
*ROUPELLIA.—Sepals scarious ; corolla-lobes obtuse or acute, never tailed ; anther- 
tips produced into a fine awn, about 5 lin, long; seeds glabrous. 
Sepals and corolla-lobes obtuse ‘ , * » IL. 8. gratus. 
Sepals and corolla-lobes acute . 4 - : . 2. 8S. Tholloni. 
**EUSTROPHANTHUS.—Sepals herbaceous; corolla-lobes produced into long narrow 
tails, rarely not caudate (S. Courmonti and S. ecaudatus); anther-tips acute, 
mucronate or produced into a short awn, up to 33 lin. long; seeds more or less 
hairy. 
+Cylindric infra-staminal part of the corolla-tube about as long as the eampanulate 
or cupular supra-staminal part or longer. 
Leaves more or less hispid or tomentose, rarely pubes- 
cent. 
Leatless when in flower. 
Leaves acuminate ; flowers in terminal cymes, 
distinctly pedicelled. 
Branches and leaves softly pubescent . . 3. S. Ledienii. 
Branches and leaves densely tomentose 4. S. holosericeus. 
Leaves obtuse, tomentose; flowers in clusters or 
solitary on very short branchlets, very shortly 
pedicelled or sessile. 
Bracts and sepals broad, ovate; corolla-tube 
over 1 in. long : : r . 
Bracts and sepals linear; corolla-tube 5 lin. 
long ‘ i . 6. 8, Nicholsont. 
Leaves produced with the flowers. 
Very hispid; corolla-tails 4-7 times longer than 
the tube; anthers included. 
Sepals conspicuously shorter than the corolla- 
tube . : - : ° : . 7 S. Kombe. 
5. S. Emini. 
