Abstract: The present paper is the Supplement 2 to the Flora of Xizang, based upon a collection in 1980 by Mr. W. L. Chen et al. from Mêdog, the south-eastern part of Xizang. In the paper 11 new species are desribed and 10 new-record species are reported. All the type specimens are kept in the Herbarium of the Institure of Botany, Academia Sinica (PE).

Key words: Xizang, Fern, Athyriaceae, Dryopteridaceae, Aspidiaceae, Lomarionpsidaceae, Davalliaceae, Polypodiaceae, new species