Leaves
alternate, petiolate to sessile, oblong to oblong-lanceolate, entire or shallowly lobed or toothed
Capitula
radiate, small, solitary
Involucre
campanulate or hemispherical with subequal bracts ± in 1 row
Ray florets
female, fertile; lamina short, yellow
Style
shallowly bilobed with apical ring of hairs
Cypselas
polymorphic, slightly curved and wingless, or straight and 3-winged, or rostrate and wingless, with or without apical cavity, smooth or rugose-aculeate
Disc florets
functionally male, yellow
Anthers
ecalcarate and caudate; endothecial tissue polarised
Pappus
0
Nomenclature:
Oligocarpus
Less.
Lessing: 90 (1832)
Nordenstam: 375 (1994)
Osteospermum
sect.
Oligocarpus
(Less.) Norl.
Norlindh: 346 (1943).
Xenismia
DC.
Candolle: 509 (1836)
Distribution & Notes:
Southern Africa
: Monotypic:
Oligocarpus calendulaceus
(L.f.) Less., endemic, KwaZulu-Natal, Northern, Western and Eastern Cape
References:
CANDOLLE, A.P. DE. 1836.
Compositae
.
Prodromus
5. Treuttel & Würtz, Paris
NORDENSTAM, B. 1994. Tribe
Calenduleae
. In K. Bremer,
Asteraceae
, cladistics and classification
. Timber Press, Oregon
NORLINDH, T. 1943.
Studies in the
Calenduleae
. 1. Monograph of the genera
Dimorphotheca
,
Castalis
,
Osteospermum
,
Gibbaria
and
Chrysanthemoides
. Gleerup, Lund
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