Dolichostachys Benoist, gen. nov.

– Type: Dolichostachys elongata Benoist, sp. nov.

Validating description in Bull. Soc. Bot. France 109: 133. 1962.

Resembling Populina Baill. and allied genera in Tetrameriinae but differing in the very short corolla tube 4.5 mm long (fide Benoist, 1962), in the broad, elliptic upper lip of the corolla with a rounded apex, and in the long, narrowly elliptic leaves 11–15 cm long when mature.