The pollen grain morphology of 16 species of the family Meliaceae is described. The pollen types established are in accordance to the genera based upon the pollen grain shape and aperture configuration. The surface ornamentation of the pollen grains of Cabralea canjerana canjerana only may be characterized. The most important morphological features of the pollen grains of the studied species are: the difficulty to visualize the boundary between sexine and nexine-1 of some genera; the evidence of nexine-2; the nonvariability of nexine-2 thickness; the increase of sexine and nexine-1 thickness in apertural areas; a fine surface ornamentation of the pollen grains.
pollen catalogue; pollen morphology; Meliaceae
