Abstract: The present paper contains descriptions both in Latin and Chinese for 31 species described as new to science. They are all collected in recent years in the costal Province Zhejiang, China. In the collections made since 1979 by the Department of Bilogy, Hangzhou University and the Botanical Institute, Academia Sinica, there are no less than three hundred species of ferns and allied plants, indicating for the first time, the province is very rich in Pteridophytes. One outstanding feature is that the province is the centre of development for Dryopte-ris sect. Bulligerae, as shown by the great number species des-cribed in the present paper. Another noteworthy feature is that the province also abounds in the Thelypterold ferns, indi-cative of the subtropical climate conditions of the province especially in its south-eastern part. Phytogeographically, theprovince has a close relationship with Japan, for many species previously known only in Japan are now also collected in Zhe-jiang Province especially along the costal areas.