Three new records of lycopsids and ferns from Vietnam

Three new records from Vietnam, Phlegmariurus guangdongensis Ching, Adiantum longzhouensis A. H. Wang, F. G. Wang & F. W. Xing, and Lepisorus bicolor Ching, are reported. The identification characteristics, information of specimen, and geographical distribution of the species are described. The discovery of new records not only enriches the study of plant diversity in Vietnam, but also provides important information for biodiversity conservation and botanical research in the region. The voucher specimens are kept in the Herbarium of Kunming Institute of Botany, Chinese Academy of Sciences(KUN), Herbarium of Institute of Botany, Chinese Academy of Sciences(PE)and Herbarium of Guangxi Forestry Research Institute(GXFI).