Leaves
opposite or subopposite, membranous, shortly petioled or subsessile, glandular towards base of petiole; stipules 0
Inflorescence
a terminal or pseudo-axillary corymb, many-flowered
Flowers
white, fragrant
Calyx
small, eglandular within or with 2-5 glands alternating with sepals; sepals 5, ovate-lanceolate to subulate
Corolla
salver-shaped; tube slender, subcylindric, slightly widened below middle, throat contracted; lobes overlapping to the right
Stamens
5, inserted near base of corolla tube; anthers 4-locular, included, oblong-lanceolate to linear, mucronate, rounded at base; filaments short, filiform
Disc
0
Ovary
of 2 free carpels; style very short, filiform; stigma ellipsoid to fusiform, apex entire or 2-toothed, viscous
Mericarps
2, follicular, divaricate, slender, terete, often falcate
Seeds
many, subterete, grooved on flat (ventral) side, with tuft of hairs at apex; cotyledons broad, complicate; radicle short; endosperm scanty
x = 11
Nomenclature:
Holarrhena
R.Br.
Brown: 51 (1810)
Codd: 263 (1963)
De Kruif: 456 (1985)
Distribution & Notes:
Global
: Species 4, Asia and Africa, 2 in Africa
Southern Africa
: Species 1:
Holarrhena pubescens
(Buch.-Ham.) Wall. ex G.Don, in Northern Province, Mpumalanga and KwaZulu-Natal
References:
BROWN, R. 1810. On the
Asclepiadeae
, a natural order of plants separated from the
Apocineae
of Jussieu.
Memoirs of the Wernerian Natural History Society
1
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
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