Kokoona reflexa (Laws.) Ding Hou, Fl. Mal. I, 6 (1962)
Latin for 'reflexed'.
Hippocratea maingayi Laws. in Hook.f.
Lophopetalum reflexum Laws. in Hook.f.
Emergent tree up to 62 m tall and 170 cm dbh. Stipules small. Leaves
opposite, simple, penni-veined, often with toothed margin. Flowers ca. 5.5 mm in
diameter, white-yellow, placed in panicles. Fruits ca. 117 mm long, brownish,
dehiscent capsule containing several wind dispersed winged seeds.
A tree up to 48(-62) m by 90(-170) cm diameter, sometimes with
buttresses up to 1.5 m high and c. 0.5 m over the
ground. Leaves chartaceous, elliptic-oblong, 5.5-11
by 2.5-4 cm; base cuneate; apex acuminate;
margins remotely crenulate, rarely subentire.
slightly recurved; nerves 5 pairs; petiole 0.8-1.5
cm. Panicles 2-18 cm long, axillary as well as
extra-axillary. Peduncle up to 5.5 cm. Pedicel
c. 1 mm. Flowers light green, or dirty yellowish
white. Calyx lobes c. 1.3 by 0.5 mm. Petals broadovate,
or broad-elliptic, 3 by 2.5 mm. Stamens
1 by 0.8 mm; filaments terete, thin; anthers oblong, 1 by 0.8 mm,
obtuse at the apex, connective not
produced. Pistil c. 1.5 mm long; ovary gradually
narrowed into an obscure style; ovules 10 in each
cell; stigma orbicular, flat. Fruits c. 12 cm long;
valves c. 3 cm wide. Seeds including the wing
9-11 by 2.5 cm. [from Flora Malesiana]
In undisturbed mixed dipterocarp forests up to 800 m altitude. Mostly on
hillsides and ridges with sandy soils, but also along rivers and on clay soils.
Thailand, Peninsular Malaysia, Sumatra, Borneo.
Borneo: Bajan, Bajau, Barjau, Batu bagalang, Bintan, Kayu minyak, Sabong api.
Sumatra: Useu-useu, Uding, Kempas sakam, Negris hitam, Negris pinang, Sepalis, Resak, Sajap.