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BARROS, Claudia Franca et al. Ecological trends in wood anatomy of tree species at Reserva Biológica de Poço das Antas, Rio de Janeiro, Brazil. Rodriguésia [online]. 2006, vol.57, n.3, pp.443-460. ISSN 0370-6583.

Wood anatomy features were used to interpretate the structure of the tree community at the Reserva Biológica de Poço das Antas, RJ, Brazil (22º30' e 22º33'S e 42º15' e 42º19'W). 26 species from 14 families and 72 specimens were analysed. The high incidence of anatomical features observed in most of species, as growth rings, difuse porosity, simple perfuration plates, thick-to-thin fibres, 1-3 rays wide and 4 to 12/mm', statistically suggested there was an anatomical pattern. Results were in accordance with ecological trends for tropical lowland species, characterized by simple perforarion plates, low frequency and widening of vessels. These features allow the conduction of large volumes of water per unit time and transectional area of wood.

Keywords : Atlantic rain forest; ecological anatomy; wood anatomy.

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