Tree 10-25 m. Leaves membranous or chartaceous, (elliptic-)oblong, 15-26 by 5-11.5 cm, base short-attenuate or narrowly rounded, apex acute-acuminate; Inflorescences between the leaves and below, of the Knema-type: Fruits solitary, sometimes several together (on short-shoots with several inflorescences), subglobose or broadly ellipsoid, 5-6 by 3.5-4.5 cm, apex ± rounded or shortly beaked, base narrowly rounded and narrowed into a pseudostalk up to 5 mm, indumentum coarse-mealy, hairs dense, dark rust-coloured, 0.2-0.3 mm;
Asia-Tropical, Halmahera endemic, N Moluccas present, Obi endemic
Malesia: N Moluccas (endemic to Halmahera and Obi).
This species, readily distinguishable by its large, elongate, male flowers and sessile inflorescences, is related to M. succedanea from nearby Ternate, Tidore and Bacan. The latter differs in its dense (but low) subpersistent indumentum on the lower leaf surface, usually distinctly pedunculate inflorescences, persistent or late-falling apical bracteole, shorter indumentum of twig apex, leaf bud and flowers, larger glabrescent fruits, and a thinner aril.