Hopea ferruginea Parijs in Fedde, Rep. 33 (1933)
Latin for 'rusty brown'.
Hopea intermedia (non King) Foxw.
Hopea micrantha (non Hook.f.) Dyer
Hopea myrtifolia (non Miq.) Heyne
Hopea pierrei (non Hance) Foxw.
Upper canopy tree up to 41 m tall and 59 cm dbh. Stem with resin. Stipules
up to ca. 1 mm long. Leaves alternate, simple, penni-veined, inconspicuous
secondary veins placed close together, sometimes with domatia. Flowers ca. 4 mm
in diameter, yellow, placed in short panicles. Fruits ca. 7 mm long, red-green,
with two ca. 30 mm long wings, wind dispersed.
Medium-sized flaky barked tree with stilt roots and living buttresses. Twig endings, petioles,
midrib above and panicles densely +/- persistently greyish puberulent, petals outside densely
cream pubescent. Twig c. 1 mm diameter apically, terete, becoming dark brown, smooth;
internodes short; stipule scars obscure. Leaf hud minute; stipules minute, fugaceous. Leaves
4.5-7.5 by 1.5-4 cm, ovate to lanceolate, subcoriaceous; base cuneate, shortly decurrent; acumen
to 1.5 cm long, slender, caudate; nervation dryobalanoid, main nerves c. 14 pairs with many
subequal secondaries, distinct and frequently with +/- prominent axillary pubescent domatia
especially in young trees; midrib slender but distinctly elevated on both surfaces;
petiole 6-10 mm long, slender. Panicles to 2 cm long, axillary, slender, short, with to 8 mm long
short branchlets bearing to 4 secund pale yellow flowers. Flower bud to 3 by 2 mm, ellipsoid.
Sepals ovate, the 3 outer somewhat longer, acute or subacuminate, the inner acute. Stamens 15,
unequal; filaments broadly compressed at base, tapering and filiform distally; appendage very
slender, c. twice length of the subglobose anthers. Ovary ovoid, style somewhat longer,
columnar, tapering, villous towards base. Fruit pedicel to 2 cm long, very slender; 2 longer
fruit calyx lobes to 3 by 0.5 cm, spatulate, narrowly obtuse, c. 1.5 cm broad above the to 4
by 2.5 mm ovate saccate thickened base; 3 shorter lobes to 8 by 4 mm, ovate-acuminate, closely
enveloping nut. Nut to 7 by 4 mm, ovoid, apiculate. [from Flora Malesiana]
In undisturbed mixed dipterocarp forests up to 1500 m altitude. Mostly on
hillsides and ridges, but also on alluvial sites. On clayey to sandy soils, also
on limestone and ultramafic soils. Usually on deep fertile soils.
The resin and timber are used.
Peninsular Malaysia, Sumatra, Borneo, Philippines.
Borneo: Banjutan, Betotas, Bunyit, Damar mata kuching, Damar putih, Luis, Merawan
putih, Resak anakan, Selangan, Selangan batu, Selangan penak.
Malaysia: Mata kuching merah, Merawan mata kuching, Merawan jangkang, Merawan merah, Merawan pasir.
Sumatra: Gangsal (Djambi), Meranti emeh.