Abstract:Four species of genus Smilax Linn. are reported as new records to Guangdong and Hainan provinces, viz. S. astrosperma Wang & Tang, S. scobinicaulis C. H. Wright and S. tetraptera Gagnep. for Guangdong, and S. kwangsiensis Wang & Tang for Hainan. S. kwangsiensis Wang & Tang var. setulosa Wang & Tang is regarded as a new synonym of S. kwangsiensis Wang & Tang, while S. lanceifolia Roxb. var. opaca DC., S. microphylla C. H. Wright var. elongata Warb. and S. lanceifolia Roxb. var. elongata (Warb.) Wang & Tang
