Leaves
petiolate, elliptic or lanceolate, glabrous or hairy; stipules sheathing, crowned by two awns
Flowers
sessile, in several-flowered, opposite, axillary cymes; bracts present, rarely connate and enveloping calyx
Calyx
variable, 4-6-toothed, sometimes 2-lipped; tube campanulate or saucer-shaped; with short, truncate or dentate limb tube
Corolla
4-7-lobed, white, cream or rose; lobes ± elliptic, shorter than or ± as long as tube, sometimes apiculate; contorted to left; tube cylindric, funnel-shaped or deeply campanulate, variably hairy or glabrous
Stamens
4-8, arising in corolla mouth, exserted; filaments short; anthers medifixed, linear, sometimes with apical appendage
Disc
swollen, annular
Ovary
2-locular, with 1 to many ovules embedded in placenta attached to septum; style terete, exserted; stigma 2-lobed
Fruit
drupaceous, ± pea-sized
Seeds
± half-moon-shaped, reticulate, sometimes pustulate
x = 11
Nomenclature:
Tricalysia
A.Rich. ex DC.
Candolle: 445 (1830)
Hooker: 95 (1873)
Hiern: 117 (1877)
Phillips: 727 (1951)
Robbrecht: 259 (1979)
Bridson & Verdcourt: 540 (1988)
Distribution & Notes:
Global
: Species ± 100, tropical regions of the Old World
Southern Africa
: Species 7, N Namibia, N Botswana, Northern Province, Mpumalanga, Swaziland, KwaZulu-Natal and Eastern Cape
References:
BRIDSON, D.M. & VERDCOURT, B. 1988.
Flora of tropical East Africa
.
Rubiaceae
(part 2)
CANDOLLE, A.P. DE. 1830.
Prodromus
4. Treuttel & Würtz, Paris
HIERN, W.P. 1877.
Rubiaceae
.
Flora of tropical Africa
3
HOOKER, J.D. 1873.
Rubiaceae
. In G. Bentham & J.D. Hooker,
Genera plantarum
2. L. Reeve, London
PHILLIPS, E.P. 1951. The genera of South African flowering plants.
Memoirs of the Botanical Survey of South Africa
No. 25
ROBBRECHT, E. 1979. The African genus
Tricalysia
A.Rich. (
Rubiaceae
-
Coffeeae
). 1. A revision of the species of subgenus
Empogona
.
Bulletin du Jardin Botanique National de Belgique
49
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