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Small trees or treelets. Stipules wanting. Leaves alternate, paripinnate or imparipinnate; distal leaflet rudimentary or exceptionally fully developed; leaflets entire.Inflorescences distal or axillary thyrses, with flowers in lateral, sessile dichasia. Flowers bisexual or functionally unisexual; calyx zygomorphic, sepals 5, free, imbricate; corolla zygomorphic, petals 4-5, clawed, with a bifid appendage above the claw; disc unilateral, semi-annular to 4-lobed; stamens 8; ovary 3-carpellate, with a single ovule per carpel; style short, with 3recurved, stigmatic branches. Fruit splitting into 3membranous, inflated, unwinged, wrinkled mericarps. Seeds exarillate.


Guianas present, Southern America: Brazil North (Amazonas present)
Three species, from Brazil (Amazonas) and the Guianas