Branchlets and petioles covered with short appressed hairs, the former cylindrical about 2 1/2–4 1/2 lin. thick with hollow internodes 3/4–1 1/4 in. long. Leaves with 5–7 leaflets, which are oblanceolate-oblong, the median 6–10 in. long and 2 1/4–3 1/4 in. wide, passing into a very long (7 lin.) narrow acute apex, base acute passing into the petiole which is 5–10 lin. long, margin sharply serrate-dentate, covered with a short grey tomentum on the under face between the close network of veins, lateral nerves numerous on each side, curving upwards; petiole 6 in. or more in length, with a longitudinal furrow. Stipules large, ovate, very acute, 7 lin. long and about as broad at the base. Male inflorescences in pairs in the leaf-axils, spreading, equal to or longer than the petiole, covered with stiff hairs, 4 in. long, much branched, branches spreading at a right angle, 2–3 1/4 in. long, ultimate branchlets 2 1/2–5 lin. long; bracts at base of the branches narrow-lanceolate, blunt, caducous; clusters of flowers subglobose, 2–2 1/2 lin. in diam., aggregated at the end of branches of the third or fourth order, but never coalescing as in M. arboreus. Flowers 3–4-merous; sepals obovate, ciliolate, barely 1/2 lin. long; stamens rather broadly linear, anthers just exserted. Female flowers and fruit unknown.
