Pollen morphology of the genus Crossonephelis (Sapindaceae)

The pollen morphology of all 7 species of the genus Crossonephelis was studied and found to be rather uniform, supporting Leenhouts’ circumscription of the genus. Minor inter- and intraspecific differences are present. Within Lepisantheae a close resemblance exists with the pollen of some species of Placodiscus, while the pollen of Lepisanthes is less similar and specialized in a different direction.