Ficus gul Lauterb. & K.Schum., Fl. Schutzgeb. Sudsee (1901)

Synonyms
Ficus bismarckiana Diels
Ficus griseifolia Corner
Ficus gul var. eubracteata Corner
Ficus gul var. lasiocarpa Corner
Ficus gul var. solomonensis Corner
Ficus keyenensis K.Schum.
Ficus manilensis Warb.
Ficus manilensis var. lata Sata
Ficus manilensis obovata Sata
Ficus rudis Miq.
Ficus rudis var. arborea Elmer
Ficus subconcolor Diels

Diagnostics
Mid-canopy tree up to 34 m tall and 52 cm dbh. Stem with white sap. Stipules ca. 7 mm long, hairy. Leaves alternate, simple, tripli-veined, hairy below, margin toothed. Fruits ca. 4 mm diameter, green, figs placed along the twigs.

Description
Dioecious tree, up to 34 m tall, 52 cm diameter. Bark grey-brown, smooth; inner bark pale. Sapwood pale. Twigs 0.2-0.35 cm thick, slender, initially rough-hairy. Stipules lanceolate, acute, c. 0.5 cm long, hairy outside, caducous. Leaves spirally arranged, thin coriaceous, rough-hairy on both surfaces; elliptic to oblong or obovate, 8-17.5 x 3.8- 8.5 cm, base symmetric, cuneate, margin toothed, apex acute; midrib flat above; lateral veins 5-7 pairs, with short intermediate veins in between, faintly raised below, very faint above, basal pair extending to nearly 1/2 the length of the blade, with a gland in each axil below; intercostal venation scalariform, faint on both surfaces; petiole 1.5-5.5 cm long, sparsely rough-hairy. Syconia hairy, in clusters, axillary or borne on twigs behind the leaves, globose, 0.4-0.6 cm diameter, ripening dull red-purple, apex umbonate; peduncle slender, c. 1 cm long; basal bracts absent, lateral bracts triangular, many; internal bristles numerous, c. 0.3 mm long, white. Tepals (3-)4-5, dark red, free, glabrous. Achenes c. 0.8 mm long, compressed, smooth, slightly keeled. [from Tree Flora of Sabah and Sarawak]

Ecology
In disturbed (open) mixed dipterocarp and regrowth forests up to 700 m altitude. Common along rivers and streams and on hillsides. Often on limestone and sandy soils.

Distribution
From Borneo to the Solomon Islands.