@article {32, title = {Checklist of the flora of the restingas of Piau{\'\i} state, Northeast Brazil}, journal = {Check List}, volume = {11(2)}, year = {2015}, pages = {10}, chapter = {1}, abstract = {

Sandy coastal plain vegetation (Restinga) is composed of communities of plants that grow on Quaternary Neosols along the entire extension of the Brazilian coast. The state of Piau\í has a coastal extension of 66 km and is entirely located in the semi-arid zone of Northeastern Brazil. This study catalogued the phanerogam species found along the coast of the state of Piau\í, the data of which was compiled from surveys in online databases and literature, and herbarium collections. A total of 363 species distributed among 235 genera, and 74 families were identified. The families with the greatest number of species included Fabaceae (108 species), Euphorbiaceae (19), Amaranthaceae (13), Apocynaceae (12), Cyperaceae (12), Rubiaceae (12), Bignoniaceae (11), Malvaceae (11) and Poaceae (11) and represent over 57.6\% of the species collected. Approximately 87\% of the species were common to other restinga areas in Northeastern Brazil, and ca. 13\% were restricted to the coast of the state of Piau\í.

}, keywords = {coastal vegetation, herbarium, Northeastern Brazil, Quaternary Neosols, restinga vegetation}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Lima, P.B. and Soares, C.J.R.S.} } @article {29, title = {Fisionomias das restingas do Delta do Parna{\'\i}ba, Nordeste, Brasil}, journal = {Revista Brasileira de Geografia F{\'\i}sica}, volume = {3}, year = {2010}, pages = {218-227}, chapter = {218}, abstract = {

O presente trabalho traz uma caracteriza\ç\ão das restingas da \Área de Preserva\ç\ão Ambiental do Delta do Parna\íba, litoral do Piau\í, Nordeste do Brasil. Foram estudadas e georreferenciadas as forma\ç\ões vegetais das \áreas assentadas sobre solos Quatern\ários. Foram identificados os tr\ês tipos de fisionomias tamb\ém presentes em outras restingas de diferentes regi\ões do litoral brasileiro, assim como os subtipos mais frequentes. Al\ém de uma concisa descri\ç\ão das fisionomias encontradas no local, o trabalho traz uma lista das esp\écies mais freq\üentes que predominam nestas paisagens.

This paper attempts to characterize \"Restinga\" (coastal vegetation) located at EPAs (Environmental Protection Areas) in the Parnaiba river delta by the coast of the state of Piau\í, in the northeast of Brazil. Vegetation forms in areas over on soils of the Quaternary age were studied and geographically-referenced. The three types of physiognomy were identified, these being the same types found at other \"Restinga\" areas on the Brazilian coast, as well as the most frequent subtypes. Along with a concise description of the physiognomy found on the coast of Piau\í, this paper also brings a list of the most frequent species that predominate in this landscape.

}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Soares, C.J.R.S. and Zickel, C.S.} }