<正> The pollen samples of Piper kadsura Ohwi collected from differenthabitats were studied with a scanning electron microscope（SEM）. It was found thatthe pollen of P kadsura Ohwi was polytypic

which included boat shaped sulcatepollen grains （about 43.6-57.1%）

oblate macroulcerate pollen grains （about38.6 - 46.3%） and tricolpoid pollen grains （about 4.3- 10.1%）. Previously

the lattertwo were mistaken for inaperturate and trichotomosulcate pollen grains under opticmicroscope.