Nephelium maingayi Hiern, in Hook.f. Fl. Br. Ind. 1 (1875)
Named after A.C. Maingay [1836-1869], a British physician and plant
Nephelium lappaceum var. maingayi (Hiern) Valet.
Mid-canopy tree up to 33(-40) m tall and 60(-90) cm dbh. Stipules absent. Leaves
alternate, compound, leaflets penni-veined, glabrous, venation strongly
reticulate. Flowers ca. 2 mm diameter, green-yellow, placed in panicles. Fruits
ca. 22 mm long, green-pink-red, drupes. Seeds with white aril.
Tree, up to 40 m high, dbh up to 90 cm, sometimes
with up to 1.4 m high buttresses. Twigs 2-
7.5 mm in diam., glabrous. Leaves 1-foliolate to
3(-5)-jugate; petiole 1-10 cm long, 1-3 mm thick,
terete to semiterete; axes early glabrescent or sometimes
glabrous; petiolules 4-17.5 mm long, above
grooved, no ribs. Leaflets +/- elliptic to obovate,
5.8-22 by 2.8-9 cm, index 1.5-3.5, pergamentaceous,
glabrous or beneath sometimes very
sparsely hairy on midrib and nerves; domatia absent;
base rounded to acute, mostly attenuate; sides
curved; apex without or with an obtuse to acute
acumen; midrib above sunken to prominulous,
nerves 0.5-2.5 cm apart, above slightly grooved to
prominulous, no intercalated veins, veins and veinlets
coarsely reticulate, prominulous on both sides.
Inflorescences axillary to terminal. Sepals from less
than halfway to nearly completely connate, 1-1.3
mm long. Petals absent. Disc hairy or glabrous.
Stamens 4-6. Ovary 1-celled, style lateral, with 1
stigma. Fruits with a 2-3 mm long stipe, the body
+/- flattened-ellipsoid. 2-2.8 by 1.3-1.8 by 1-
1.3 cm, style remnant a small point or hook just
above the stipe, the surface variably warty, slightly
puberulous around and especially beneath the
style remnant, for the rest glabrous; wall coriaceous.
1-1.5 mm thick. [from Flora Malesiana]
In undisturbed mixed dipterocarp, (peat)-swamp and sub-montane forests up to
1600 m altitude. Mainly in alluvial (swamps) sites and along rivers and streams.
The wood is used. The fruits are edible.
Peninsular Malaysia, Sumatra, Borneo.
Borneo: Buah serait, Duku, Katiau, Mujau, Puda, Serait.