This paper uses scanning electron microscopy (SEM) analyses and light (LM) to study pollen grains of species the family Oleaceae Hoffmanns. & Link distributed in Vietnam, including 23 belonging 6 genera (Oleaceae). Pollen all (Oleaceae) Vietnam are isopolar, radial, 3- prolate small size, with two types: subprolate type (Jasminum Olea) spheroidal (Jasminum, Fraxinus, Ligustrum, Osmanthus, C...