Macaranga gamblei Hook.f., Fl. Brit. India 5: 445. 1887.

Trees, 10 - 30 m high; young shoots puberulous. Leaves lanceolate to elliptic-lanceolate, cordate or rounded at base, subentire to shallowly crenate along margins, cuspidate-acuminate at apex, 7 - 17 x 3 - 6 cm, thinly coriaceous, subglabrous, gland-dotted beneath, obscurely 3- nerved with 2 discoid glands above base; secondary nerves 8 - 12 pairs; cross nervules prominent on both sides; petioles 1.5 - 4 cm long, with glands at apical part. Male inflorescences axillary or terminal, 4 - 10 cm long, yellowish stellate-tomentose; flowers 1 – 2 mm across, yellowish tomentose, in 2 - 4-flowered clusters in alternate or opposite bracts; bracts ovate-lanceolate, crenate to serrate with glands along margins, 7 - 9 x 1 - 2 mm, foliaceous; sepals 3 or 4, ovate, 1 - 1.5 x ca 1 mm; stamens 15 - 22; filaments ca 0.5 mm long; anthers 4-loculed, 0.2 - 0.3 mm long. Female flowers not seen. Fruits trilobed, 1 - 1.5 cm across; testa crustaceous, yellow-glandular, scattered echinate; spines conical, sharp or blunt, up to 1 mm long with one or a few hairs at apex; seeds globose, 5 - 6 mm across, dark brown, wrinkled.

Fl. & Fr. April - Dec.

Distrib. India: Tropical evergreen forests, at low altitudes. West Bengal, Sikkim, Arunachal Pradesh and Assam.

Myanmar.

Notes. Chromosome number: 2n = 22 (Mehra & Hans, Taxon 18: 310 - 315. 1969).

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