Abstract: The floristic phytogeographical features of the ferns and fern allies in the Mt.Ehuangzhang Nature Reserve are discussed.There are about 134 species (including varieties and forms) of pteridophytes belonging to 72 genera and 38 families in this area,and the higher taxa in system and evolvement,such as Polypodiaceae,Thelypteridaceae and Dryopteridaceae are the dominent.Through the analysis the additional results are as follows:Rich in single species families,ancient in origin,complexion,varied in geographical elements,having an extensive connection with nearby floristic areas,but dominating in tropical and subtropical elements.It is nearly correlative with the ancient geologic structure and ascendant natural condition here.

Key words: Ehuangzhang Nature Reserve, fern, flora, geographical range