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Vernonieae (Compositae) taxa Vernonia and Elephantopus were examined by scanning (SEM) and by transmission electron microscopy (TEM). All pollen grains of Vernonia have a subechinolophate sculpturing consisting of a wrinkled net-like ektexine delineating a system of thickened and randomly meandering ridges and corresponding valleys. Ektexine on the ridges radiates from near mid-regions of massive, individual columellae that terminate in sharp spines approximately 4.5 μm above the ektexine surface. Less massive secondary columellae without apical protrusions support the ektexine net in the spine areas. In the valleys, the ektexine is markedly depressed. Removal of the net by freeze-fracture exposes an exine surface that is clearly imprinted with distinctive lophate features. Elephantopus pollen is echinolophate and extends the morphological range for this little studied genus. Lophae are the …