Abstract:A taxonomic reunion reveals that four spevies of the genus, P. ambigua, P. anacamptolepis, P. intralimbataand P. makincli two species of Caduciella, C. guangdongensis and C. mariei occur in South China. P. ambigua in Guangdong, Guizhou and Hainan Island, P. anacamplolepis in mainland China (Guangdong, Guagnxi) and Hainan Island,P. nakinci in Fujian, Guangxi and Hainan Island, C. guangdongensis in Hainan Island are reported for the first time.P. alopecuroides is treated as a doubtful species. Diagnostic charaders, distributions, laslitiot, habitsts and a key to the studied species are provided.
