Rubiaceae
-
Rubioideae
-
Psychotrieae
-
Psychotria
L.
Description
:
Shrubs or small trees
Leaves
petiolate, elliptic or elliptic-lanceolate or obovate; stipules lanceolate or ovate, caducous; colleters present
Flowers
sessile or pedicellate, in panicles or terminal cymes
Calyx
glabrous, persistent; tube saucer- or cup-shaped with minute teeth
Corolla
5-lobed, white, greenish white or yellow, glabrous; lobes reflexed, somewhat shorter than tube, valvate; tube campanulate or cylindric, hairy at throat
Stamens
5, arising in middle of corolla tube, slightly exserted; filaments ± as long as anthers; anthers linear or oblong, glabrous or pilose
Disc
hemispherical
Ovary
2-locular, with a single erect ovule in each locule; style filiform, long or short; stigma bifid, lobes linear
Fruit
an oval drupe, with 1 or 2(-4) pyrenes
x = 11 (high polyploidy)
Nomenclature:
Psychotria
L.
Linnaeus: 929 (1759)
Hiern: 215 (1877)
Phillips: 735 (1951)
Verdcourt: 26 (1976)
Verdcourt: 9 (1989)
Grumilea
Gaertn.
Gaertner: 138 (1788)
Distribution & Notes:
Global
: Species ± 1400, tropical regions
Southern Africa
: Species 2, Northern Province, Mpumalanga, Swaziland, KwaZulu-Natal and Eastern Cape
References:
GAERTNER, C.F. 1788.
De fructibus et seminibus plantarum
1. G.H. Schramm, Tübingen
HIERN, W.P. 1877.
Rubiaceae
.
Flora of tropical Africa
3
LINNAEUS, C. 1759.
Systema naturae
, edn 10. Laurentius Salvius, Stockholm
PHILLIPS, E.P. 1951. The genera of South African flowering plants.
Memoirs of the Botanical Survey of South Africa
No. 25
VERDCOURT, B. 1976.
Flora of tropical East Africa
.
Rubiaceae
(part 1)
VERDCOURT, B. 1989.
Rubiaceae
.
Flora zambesiaca
5,1
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