Abstract:This paper reports 2 genera. Pleocnemia Presl (Aspidiaceae) and Lornagramma J. Sm. (Lomariopsidaceae), of pteridophytes recently re-discovered in Hong Kong. The specimens of Pleocnemia winitii Holtt.. P. conjugate (Bl.) Presl, and Lomagramma matthewii (Ching) Holtt. from Hong Kong, and related references were reviewed. The closely related species found in China were revised taxonomically. Pleocnemia hamata Ching et Chu H. Wang, and P. kwangsiensis Ching et Chu H. Wang are regarded as two new synonyms of P． winitii Holtt．In addition，after observation on Lomagrcanmct matthewii (Ching) Holtt. for a long period，we consider that Holttum’s description on morphology of rachis apex of this species is exact． The re-discovery of Pleocnemia Presl and Lomagramma J．Sm ．in Hong Kong is significant for the study of phytogeography of pteridophytes in South China． It is recommended to list them in rare and endangered ferns in Hong Kong as they are quite rare locally.