Siphonodon Griff.

Trees. Leaves distichous or spirally arranged. Flowers in axillary cymes, sometimes reduced to 1 flower. Sepals 5, imbricate, outer ones smaller than inner. Petals 5, imbricate. Stamens 5, ±connivent around ovary, incurved and appressed to disc, often alternating with 5 staminodes; anthers latrorse; connective broad, separating locules. Ovary immersed in and adnate to a large hemispherical disc, 10-locular with each locule divided horizontally into 2-4 superposed 1-ovulate locelli; upper ovules ascending, the lower pendulous; apex of ovary hollow, lined with 5 stigmatic lines ending in 5 apical stigmatic tufts and filled by a style-like column. Fruit drupaceous, hard or fleshy with few to many bony 1-seeded pyrenes. Seeds with a membranous testa.

In forests from lowland up to 1375 m.