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Brazilian Journal of Botany

versão impressa ISSN 0100-8404

Resumo

COSTA, Janete Teixeira; ESTEVAN, Daniela Aparecida; BIANCHINI, Edmilson  e  FONSECA, Inês Cristina de Batista. Floristic composition of the vascular species and tree flora successional character in a Seasonal Semideciduous Forest remnant in Southern Brazil. Rev. bras. Bot. [online]. 2011, vol.34, n.3, pp.411-422. ISSN 0100-8404.  http://dx.doi.org/10.1590/S0100-84042011000300014.

The floristic composition of vascular species present in an urban forest remnant in the Ibiporã Forest Park (23°15'71" S and 51°01'83" W, Park entrance), Southern Brazil, was studied from May 2006 to May 2008. The species were divided in life form and tree species were placed in successional categories. A total of 176 native species, 147 genera and 57 families were found. The majority of species were Angiosperms (98%) while 2% were Pteridophyta. The richest families were Fabaceae (19), Bignoniaceae, Malvaceae (nine), Meliaceae and Rubiaceae (eight). The tree species were majority (53%), following by herbaceous (16%), vines (14%), shrubs (13%) and epiphyte species (4%). The successional characterization of the tree species showed a slight predominance of the late secondary species (52%) over species of early succession (45%), indicating that the vegetation of the PFI is in the intermediate to advanced stage of ecological succession.

Palavras-chave : ecological succession; forest remnant; richness; successional groups; urban park.

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