Tristiropsis apetala

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Tristiropsis apetala


Tree, 8 m high, dbh up to 26 cm. Branchlets unknown. Leaves at least c. 1.5 m long, glabrous; Sepals yellow, broad-ovate, outer c. 3 by 3.5 mm, inner c. 3.5 by 4 mm, margin thin, slightly crenu-late, outside and inside densely appressedly short-hairy. Petals absent. Stamens 8, slightly exserted; Fruits unknown.


Asia-Tropical, Madang Prov present, Papua New Guinea present
Malesia: Papua New Guinea (Madang Prov.); known from the type only.


The present species is unique in the genus because it lacks petals. Moreover, it differs from T. acutangula, the species it resembles most, in the sepals being as densely hairy inside as outside. The apetalous flowers with a broad and flat disc are also found in other genera like Glenniea Hook. f. and Mischocarpus Blume.