Leaves
alternate, sessile, scabrid, linear to lanceolate and elliptic, entire or remotely toothed
Capitula
radiate, shortly pedunculate, terminal, solitary, several- to many-flowered
Involucre
campanulate; bracts in 2 or 3 rows, free, lanceolate, setose or pilose
Receptacle
flat or convex, epaleate
Ray florets
female, fertile; corolla yellow or orange on both sides or white above; tube oblique on ovary, funnel-shaped, with somewhat oblong-elliptic lamina 4-8 × its length
Staminodes
sometimes present
Style
terete with linear, obtuse branches
Cypselas
glabrous, kidney-shaped, convex and transversely rugose on convex side, keeled on reverse side, with ventral cavity
Anthers
ecalcarate, caudate; with ovate, apical appendage; endothecial tissue polarised
Style
linear, convex, faintly 2-lobed at apex, with apical ring of hairs
Pappus
0
x = 10 (1 report)
Nomenclature:
Gibbaria
Cass.
Cassini: 139 (1817)
Norlindh: 358 (1943)
Nordenstam: 375 (1994)
Osteospermum
by Harvey
Harvey: 433 (1865)
Distribution & Notes:
Southern Africa
: Species 2, endemic:
Gibbaria ilicifolia
(L.) Norl. and
G. scabra
(Thunb.) Norl., Western and Eastern Cape
References:
CASSINI, A.H.G. DE. 1817. Aperçu des genres ou sous-genres nouveaux formés par M. Henri Cassini dans la famille des Synanthérées.
Bulletin des sciences de la Société Philomatique de Paris
5
HARVEY, W.H. 1865.
Compositae
.
Flora capensis
3
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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