Abstract: The authors made a detail study on pollens and leaves of 12 medicinal species of Aralia distributed in China, and found that besides reticulate type, the ornamentation of pollen grains from Aralia have other two types, i. e. regulate type and interm type. Pollen surfacial features could not beused as the stand and for identifying species, but to some morphologicallysimilar species they are of taxonomical significance;SEM feature diffe-rences of leaves among species vary greatly, comprehensive utilization ofthose characteristics may provide the method for identification of Araliaspecies.

Key words: Aralia, Medicinal species, SEM, Pollen, Leaves