NEW MATERIALS FOR POLYSTICHUM FROM GUIZHOU Polystichum mulunense (Dryopteridaceae), a New Species from Karst Caves in Guangxi, China New Materials of the Fern Genus Polystichum Roth. from Western China Four New Species of the Fern Genus Polystichum Sect. Metapolystichum STUDIES ON SPORE MORPHOLOGY OF POLYSTICHUM FROM QINLING RANGE Polystichum mulunense (Dryopteridaceae), a New Species from Karst Caves in Guangxi, China A TAXONOMIC STUDY ON THE FERN GENUS POLYSTICHUM SECT. METAPOLYSTICHUM FROM SICHUAN, CHINA Three Newly Recorded Species of Ferns from Yunnan Province 骆强 Polystichum lanceolatum,a Newly Recorded Species of Dryopteridaceae from Henan Cytological Observations on Some Species of Dryopteris and Polystichum from China A new section of the fern genus Polystichum Roth—Sect. Neopolystichum Ching A New Species of Polystichum (Aspidiaceae) from Xizang (Tibet) A Taxonomical Study of the Genus Polystichum Roth Section Haplopolystichum Tagawa from Yunnan A Taxonomic Study on the Fern Genus Polystichum Roth Sect. Metapolystichum Tagawa from China (I) (To be continued) A New Species of Polystichum (Dryopteridaceae) from Taiwan, China Two New Ferns from Shandong Province Two New Ferns from Shandong Province Study on the Fern Genus Polystichum Roth Sect. Lasiopolystichum Daigobo from China A New Species of Polystichum from Yunnan A New Species of Polystichum Roth from N. Burma and S. W. China Gametophyte Development of Three Species of Dryopteridaceae Two New Records of Dryopteridaceae of Qinling,Shaanxi