162 Lxxxiv. APOCYNACE^ (stapf). [^Uolan'hena. 



anthers conniving in ;i cone, more or less coherent by their tips, 

 included, free from the stigma, linear, apiculate or mucronate, the 

 outer half of each cell decurrent (sometimes minutely) on and adnate 

 to the base of the glabrous connective, adnate tips empty ; filaments 

 short, filiform, with a hairy vSwelling at their base running out into a 

 slender filamental ridge. Disc 0. Carpels 2, free ; style very short, 

 filiform ; stigma below the anthers, ellipsoid to fusiform, entire, viscous 

 and more or less agglutinated to the hairy swellings at the base of the 

 filaments ; ovules numerous, pluriseriate. Mericarps follicular, divari- 

 cate, slender, terete, usually curved. Seeds oblong or linear, semi- 

 terete, grooved on the flat (ventral) side, with a tuft of reddish hairs at 

 the apex ; endosperm scanty ; cotyledons foliaceous, complicate ; radicle 

 short. — Deciduous trees or shrubs, glabrous or more or less hairy. Leaves 

 opposite or partly subopposite, herbaceous ; secondary nerves rather 

 distant ; petioles glandular towards the base ; stipules 0. Corymbs 

 many-flowered, terminal or pseudo-axillary; flowers white, fragrant. 

 Species 7 ; 5 in tropical Africa, 2 in India. 

 Sepals subulate, 3-5 lin. long . . . . .1. H.fehrifurfa. 



Sepals ovate to lanceolate, ^-1| lin. long. 



Corolla 14^15 lin. long . . . . . . 2. H. congolensis. 



Corolla 5-8 lin. long. 



Young leaves and branches pubescent . . .3. H. orata. 



Voung leaves and branches (juite glabrous or the 

 leaves sometimes with a fringe of minute 

 hairs in some of the ner\'e-axil8. 

 Calyx 1-1^ lin. long, densely greyish-puberulous 

 like the whole inflorescence; anther-cells 

 distinctly decurrent on the filament . . 4. ff. africana. 



Calyx |-1 lin. long, ciliolate, otherwise glabrous 

 or loosely (rarely densely) puberulous like 

 the whole inflorescence ; anther-cells ob- 

 scurely decurrent on the filament , . %>. H. Wvlfsherriii. 



]. H. febrifuga, Klotzsch in Peters, Beise Mossamh. Bot. 277. A 

 small tree, up to 25 ft. high ; young branches generally more or less 

 pubescent or tomentose, later on glabrescent, rarely glabrous from the 

 beginning, terete, brown, copiously dotted with lenticels. Leaves 

 elliptic or oblong, rarely ovate or roundish, obtuse, shortly acuminate or 

 acute, rounded or acute at the base, 2-G in. long, 1 J-3 in. broad, hairy 

 on both sides, often tomentose beneath, or glabrescent or quite glab- 

 rous ; secondary nerves 8-14 on each side ; veins in glabrous specimens 

 sometimes distinct; petioles 2-?/ lin. long. Corymbs pubescent to 

 almost villous, rarely glabrous ; peduncle about o lin. or less long ; 

 pedicels up to 5 lin. long. Calyx 3-5 lin. long, pubescent, rarely glab- 

 rous ; sepals subulate, the inner with 1 or 2 small basal glands within. 

 Corolla-tube puberulous, rarely glabrous without, about G-8 lin. long ; 

 lobes oblong or obovate-oblong, as long as the tube or slightly shorter. 

 Anthers slightly over J lin. long, decurrent tips very slender, about 

 }^-\ the length of the polliniferous part of the anther-cell. Follicles 

 very slender, more or less constricted between the seeds, 10-12 in. 



