Inflorescence terminal or axillary, paniculate or corymbose, rarely a few-flowered cyme
Flowers relatively small, white or purple, usually fragrant
Calyx small, divided almost to base, eglandular or with 5 glands; lobes imbricate, lanceolate, ovate-lanceolate, or rotundate
Corolla funnel-shaped or campanulate, usually widest or slightly constricted at mouth, glabrous within, usually with fleshy, projecting calli or scales just above insertion of stamens; lobes longer than tube, mostly very narrow, overlapping to the right
Stamens inserted above base of corolla tube; filaments very short, stout; anthers 4-locular, conniving in a cone around style, lanceolate, apiculate, long-sagittate at base, polliniferous in upper part only, with foot of connective hollowed out
Disc saucer-shaped or cupular, subtruncate, sinuate or 5-lobed
Ovary of 2 free carpels, slightly inferior, subtruncate, usually pubescent; style shorter than stamens; stigma ellipsoid with 5 pits and small, 2-lobed apex
Mericarps 2, follicular, usually cylindric and slender
Seeds linear-lanceolate to oblong, truncate at tip with a deciduous, apical tuft of hairs
x = 11
Nomenclature:
Baissea A.DC.
Candolle: 424 (1844)
Codd: 276 (1963)
De Kruif: 495 (1985)
Van Dilst: 89 (1995)
Zygodia Benth.
Bentham: 716 (1879).
Perinerion Baill.
Baillon: 758 (1888).
Guerkea K.Schum.
Schumann: 180, fig. 59 (1895).
Conodura K.Schum.
Schumann: 229 (1896)
Distribution & Notes:
Global: Species 18, continental Africa, Angola, Zambia
Southern Africa: Species 1: Baissea wulfhorstii Schinz, N Namibia, N Botswana
References:
BAILLON, H.E. 1888. Perinerion & Zygoneurion. Bulletin mensuel de la Société Linnéenne de Paris 1
BENTHAM, G. 1879. Zygodia. In G. Bentham & J.D. Hooker, Genera plantarum 2. Reeve, London
CANDOLLE, A.L. DE. 1844. Baissea. Prodromus 8. Treuttel & Würtz, Paris
CODD, L.E. 1963. Apocynaceae. Flora of southern Africa 26
DE KRUIF, A.P.M. 1985. Apocynaceae: Baissea, Holarrhena and Rauvolfia. Flora zambesiaca 7,2
SCHUMANN, K.M. 1895. Apocynaceae. Die natürlichen Pflanzenfamilien 4,2
VAN DILST, F.J.H. 1995. Baissea A.DC. Series of revisions of Apocynaceae XXXIX. Bulletin du Jardin Botanique National de Belgique 64
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