In the present study,a classical taxonomic analysis of micromorphological characters of the leaf epidermis was employed to reassess the taxonomy of Gelidocalamus stellatus and its infraspecific taxa from southern China.We propose that G.monophyllus is distinct from G.stellatus,and G.wugongshanensis should be treated as a variety under G.stellatus.A new variety(i.e.G.stellatus var.mangshanensis),collected from the Boa Mountain of Hunan Province in China,is described and illustrated.A formal taxonomic treatments is presented,including descriptions,comments,illustrations,distribution maps,and SEM images of the abaxial leaf epidermis.