Abstract: Pollen grains of 27 species representing 18 sections of Camellia have been examined by light microscope (LM), scanning electron microscope (SEM) and mostly by transmission electron microscope (TEM). From the comparison of pollen size and shape, the exine sculpture, the pollen wall ultrastructure and exine stratification, we divided the pollen grains of Camellia into 6 types: 1. rugulate-verrucate; 2. coarsely warty; 3. granulate to rugulate-granulate; 4.foveolate-reticulate; 5. rugulate-fossulate; and 6. rugulate with beaded muri. These types are not in keeping with the sections divided morphologically by Mechior (1925), by Sealy J.R. (1950) or by Chang Hungta (1981-1982).

Key words: Pollen morphology