Shrub or treelet, 2-3 m tall. Leaves membranous or thinly chartaceous, (elliptic-) oblong, 5-12 by 1.5-4 cm, base attenuate, apex acute-acuminate; Inflorescences between the leaves, ± of the Knema-type; Fruits 1-3 per infructescence, ± fusiform, (3-)3.5 by 1.5 cm, apex acute, basal part tapered into a 5-8 mm long pseudostalk, hairs minute, dull-rusty, mealy, 0.1 mm or less;
Asia-Tropical, E Papua New Guinea present, Sogeri region, Central Prov endemic
Malesia: E Papua New Guinea (endemic to the Sogeri region, Central Prov.); known from two collections.
2 Because the (male) inflorescences are short-pedunculate, M. sogeriensis has been entered twice in the keys, in the group with sessile inflorescences and in that with stalked inflorescences. 1 Resembling and related to M. pumila, a species occurring in the same area and with larger and longer pedicelled male flowers with a caducous bracteole, (sub)sessile male inflorescences, and fruits borne on a 20-25 mm long thread-like pedicel (much shorter in the present species). Recent collecting has shown that the Sogeri region harbours several local endemic species, sometimes with a strikingly similar foliage.