Pollen morphology of Ficus subsection Urostigma (Moraceae)

Abstract

The pollen morphology of Ficus subsection Urostigma has been studied using light microscopy and scanning electron microscopy. It conforms to the description of Ficus pollen in the literature except for the observed rare occurrence of 4-porate pollen, which was unknown so far in the genus. Due to minor variability it was not possible to distinguish any pollen types. No significant pollen morphological differences were found between species with active pollination and species with passive pollination.