Ficus sumatrana (Miq.) Miq., Ann. Mus. Bot. Lugd. Bat. 3 (1867)

Synonyms
Ficus dulitensis Kochummen
Ficus palaquiifolia Corner
Ficus pseudoacamptophylla Valeton
Ficus pseudorubra (Miq.) Miq.
Ficus subsumatrana Gagnep.
Ficus sumatrana var. circumscissa Corner
Ficus sumatrana var. microsyce Corner
Ficus sumatrana var. subsumatrana (Gagnep.) Corner
Ficus zollingeriana (Miq.) Miq.
Urostigma monadenum Miq.
Urostigma pseudorubrum Miq.
Urostigma sumatranum Miq.
Urostigma zollingerianum Miq.

Diagnostics
Upper canopy tree (strangler) up to 50 m tall and 140 cm dbh. Stem with white sap. Stipules ca. 10 mm long, glabrous to hairy. Leaves alternate, simple, tripli-veined, glabrous. Fruits ca. 9 mm diameter, yellow-orange-red, globose figs placed along the twigs.

Description
Monoecious strangler. Twigs pale white to pale brown, grooved. Stipules oblong to lanceolate, acute, up to 1.5 cm long, usually glabrous, caducous. Leaves thick-coriaceous, glabrous; elliptic or oblong, 4.5-10 x 2-6 cm, base cuneate to rounded, margin entire, plane, apex acute; midrib sunken above (flat in var. subsumatrana); lateral veins 4-5 pairs, raised below, very faint above, basal pair reaching more than 1/2 the length of the blade; intercostal venation reticulate, visible below, invisible above; petiole glabrous, 0.7-1.5 cm long. Syconia axillary, in pairs, sessile, broadly ellipsoid, 0.4-0.9 cm diameter, apex umbonate, rarely depressed; basal bracts prominent, persistent; lateral bracts absent. Perianth of male flowers consists of 3 tepals. [from Tree Flora of Sabah and Sarawak]

Ecology
In undisturbed mixed dipterocarp, keranga and sub-montane forests up to 1500 m altitude. Mostly on hillsides and ridges, but also on alluvial sites and along rivers and streams. On sandy to clay soils, but also on ultrabasic and limestone.

Distribution
Burma, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Java, Borneo, Philippines, Sulawesi, Sumbawa.