RESUMO -Apresenta-se"um ievantamento das especi" es de pteridOfitas coletadas em cerca de 55 municipios do Estado de Pernambuco, visando ao estudo da distribuicao da flora pteridofitica pelas varias zonas fisiograficas. Com este trabalho, aumentou-se 0 numero de especies de pterid6fitas para 0 Estado, de 121 referidas anteriormente, para 194 especies, com a freqiiencia e a dispersao por cad a zona fitogeografica. Das 194 especies encontradas, tres ocorrem na zona do litoral, nenhuma sendo exclusiva desta zona; 162 na subzona de mata umida, sendo % exclusivas da. area; 37 na subzona de mata seca, sendo quatro exclusivas da area; 65 na subzona de mata serrana ou brejos de altitude, sendo 16 exclusivas da area; oito na zona das savanas (tabuleiros), ocorrentes em outras zonas fisiograficas; e 26 nas diferentes zonas de caatinga do agreste e sertao. Destas, a especie Selaginella sellowii Hieron e exclusiva da zona fisiografica das caatingas, embora Selaginella convolu/a (Am.) Spring. apresente sua maior ocorrencia nessa zona. As especies se distribuem pelas familias Ophioglossaceae, Marattiaceae, Schizaeaceae, Gleicheniaceae, Hymenophyllaceae, Cyatheaceae, Pteridaceae, Vittariaceae, Dennstaedtiaceae, Thelypteridaceae, Dryopteridaceae, Aspleniaceae, Davalliaceae, Blechnaceae, Polypodiaceae, Marsileaceae, Salviniaceae, Psilotaceae, Lycopodiaceae e Selaginellaceae. A especie de maior distribuicao e Anemia /omentosa (Sav.) Sw., ocorrendo desde a subzona de mata umida ate asubzona de caatinga do sertao do Jatina.Palavras-chave: distribuicao, pterid6fitas, PE-Brasil.ABSTRACT -A survey of the species of Pteridophytes which were collected in about 55 municipalities in the State of Pernambuco was made in order to study the distribution of the pteridophytic flora over several physiographic zones. Through this study, the number of species of Pteridophytes was increased in the State. One hundred and twenty-one species were referred by Pontual. Now, 194 species were presented, including Pontual's species, with information about frequency and dispersion per phytogeographical zones. From those 194 species which were found, 3 occur in the littoral zone (none of the species are limited to this zone); 162 species were refer-] Profs. Adjuntos,
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