In this paper we examine pollen types from four representative subfamilies of Euphorbiaceae in southern China, including 34 species (21 genera) of Crotonoideae, Euphorbioideae, Acalyphoideae and Phyllanthoideae. The morphology of the investigated species is described and illustrated with high-resolution photographs observed by transmitted light microscope. These descriptions and illustrations are presented at the species level, and pollen types and identifying features are also noted. This study is a complementary contribution to Quaternary pollen analysis, and should aid in the identification of pollen types assigned to Euphorbiaceae, especially in Southern China, as well as elsewhere in the tropical and subtropical regions of East Asia.

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