Sepals
3, free, coriaceous, ovate, valvate, enclosing petals in bud, with margins not or scarcely bent outwards, densely brown- or fawn-pubescent
Petals
6, slightly imbricate, in 2 whorls, equal or subequal, connate at base into a small tube, valvate, transversely folded in bud, expanding and spreading at anthesis
Stamens
many; anthers linear or linear-cuneate; connective thickened and truncate above thecae
Carpels
2 or 3, villous; ovules many, in 1 row; style very short; stigma 2-lobed, with lobes oblong or dilated
Monocarps
indehiscent, succulent, cylindrical or ellipsoid, usually not or scarcely constricted, subsessile
Seeds
horizontal; aril absent
Nomenclature:
Hexalobus
A.DC.
Candolle: 212 (1832)
Oliver: 26 (1868)
Prantl: 36 (1891)
Engler & Diels: 55 (1901)
Robson: 116 (1960)
Paiva: 61 (1966)
Roessler & Schreiber: 2 (1968)
Le Thomas: 81 (1969)
Van Setten & Maas: 682 (1990)
Kessler: 113 (1993)
Distribution & Notes:
Global
: Species 5, tropical Africa from Senegal to Sudan and southwards to southern Africa, 1 dubiously placed species (climber) recorded from Madagascar
Southern Africa
: Species 1:
Hexalobus monopetalus
(A.Rich.) Engl. & Diels, Namibia, Botswana and Northern Province
References:
CANDOLLE, A.L.P.P. DE. 1832. Mémoire sur la famille des Anonacées, et en particulier sur les espèces du pays des Birmans.
Mémoires de la Société de Physique et d'Histoire Naturelle de Genève
5
ENGLER, A. & DIELS, L. 1901.
Annonaceae
. In A. Engler,
Monographien afrikanischer Pflanzenfamilien und Gattungen
6. Engelmann, Leipzig
KESSLER, P.J. A.1993.
Annonaceae
. In K. Kubitzki, J.G. Rohwer & V. Bittrich,
The families and genera of vascular plants - dicotyledons
2. Springer-Verlag, Berlin
LE THOMAS, A. 1969.
Annonaceae
.
Flore du Gabon
16
OLIVER, D. 1868.
Anonaceae
.
Flora of tropical Africa
1
PAIVA, J.A.R. 1966. Revisão das
Annonaceae
de Angola.
Memórias da Sociedade Broteriana
19
PRANTL, K. 1891.
Anonaceae
.
Die natürlichen Pflanzenfamilien
III,2
ROESSLER, H. & SCHREIBER, A. 1968.
Annonaceae
.
Prodromus einer Flora von Südwestafrika
34
VAN SETTEN, A.K. & MAAS, P.J.M. 1990. Studies in
Annonaceae
XIV. Index to generic names of
Annonaceae
.
Taxon
39
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