Leaves
: basal ones long-stalked, entire or irregularly dentate; cauline ones alternate when present, but usually absent or much reduced and distant
Flowers
in lax or congested cymose, sometimes paniculate inflorescences
Calyx
deeply 5-lobed
Corolla
5-lobed; tube short, white or yellow
Stamens
arising on corolla tube
Ovary
1-locular, with minute, basal glands; placentas thickened
Capsule
4-valved, splitting at apex
Seeds
2
x = 9 (polyploidy)
Nomenclature:
Villarsia
Vent.
Ventenat: t. 9 (1803) in part, name conserved
Hill & Prain: 1119 (1909)
Marais & Verdoorn: 242 (1963)
Aston: 2 (1969)
Cook: 128 (1990)
Distribution & Notes:
Global
: Species ± 16, SE Asia, Australia and southern Africa
Southern Africa
: Species 1:
Villarsia capensis
(Houtt.) Merrill, Western Cape, in marshes
References:
ASTON, H.I. 1969. The genus
Villarsia
(
Menyanthaceae
) in Australia.
Muelleria
2,1
COOK, C.D.K. 1990.
Aquatic plant book
. SPB Academic Publishing, The Hague
HILL, A.W. & PRAIN, D. 1909.
Gentianeae
.
Flora capensis
4, 1
MARAIS, W. & VERDOORN, I.C. 1963.
Gentianaceae
.
Flora of southern Africa
26
VENTENAT, E.P. 1803.
Choix de plantes
. Crapelet, Paris
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