Didymosalpinx

Erect or scrambling shrubs, entirely glabrous (except inside of corolla tube); some lateral branches modified into paired, straight supra-axillary spines held at right angles. Leaves opposite, petiolate, +/- elliptic, usually with small ciliate pit domatia; stipules subulate, slightly connate at base. Flowers bisexual, rather large, 5-merous, axillary or supra-axillary, solitary on both sides of node, sweetly scented at night; pedicels well-developed. Calyx: tube short, with colleters inside; lobes narrowly triangular. Corolla funnel-shaped with strong midpetaline nerves, pilose inside, glabrous outside; lobes ovate-triangular, much shorter than tube. Anthers included, sessile in uppermost portion of tube. Ovary 1-locular with 2 opposing parietal placentas which may be +/- joined to form a +/- 2-locular ovary; ovules deeply embedded in placentas. Fruit globose or ellipsoid, slightly ribbed, crowned with persistent calyx; testa thin, leathery. Seeds 10-15, lenticular, embedded in pulpy placental tissue.