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vol.13 issue1Physiognomy and organization of the "carrasco" vegetation on the Ibiapaba plateau, Northeastern BrazilMorpho-anatomy of species of Blastocaulon Ruhland (Eriocaulaceae) author indexsubject indexarticles search
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Acta Botanica Brasilica

Print version ISSN 0102-3306

Abstract

RODAL, Maria Jesus Nogueira; NASCIMENTO, Ladivania Medeiros do  and  MELO, André Laurênio de. Floristic composition of the shrubland decidual vegetation at Ibimirim district, Pernambuco, Brazil. Acta Bot. Bras. [online]. 1999, vol.13, n.1, pp.15-28. ISSN 0102-3306.  https://doi.org/10.1590/S0102-33061999000100003.

A survey of the flora was carried out on deciduous shrubby vegetation from the sedimentary plateaus of Ibimirim, Pernambuco State, Brazil. In 343 collections, 139 taxa were identified, these being distributed in 92 genera and 38 families. The families richest in species were: Euphorbiaceae, Fabaceae, Caesalpiniaceae and Mimosaceae, with 42% and 33% of the species and genera, respectively. Data analysis of 831 species listed in 15 floristic surveys from 19 sites (Ceará, Pernambuco, Piauí and Sergipe States) showed that the area studied has the most species in common with sites located on sedimentary plateaus and caatingas that overlie cristaline rock, and the fewest in common with the cerrado vegetation of Piauí State. The vegetation is classified as caatinga based on the flora, functional aspects and degree of water deficiency.

Keywords : caatinga; Angiosperm flora; semi-arid region.

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