COMPOSIÇÃO FLORÍSTICA DO ESTRATO ARBÓREO DE FLORESTA ATLÂNTICA INTERIORANA EM ARAPONGA - MINAS GERAIS1

The objective of this work was to determine the floristic composition of a forest fragment and to analyze its similarity with other areas of the Semideciduous Seasonal Forest and Dense Ombrophylous Forest, in order to classify the forest typology of this area. The survey was carried out in an interpretative trail at the Pousada Serra D'Água (20º41'24"S and 42º29'47"W, 1100 m altitude), in the region around the Serra do Brigadeiro State Park (PESB), municipality of Araponga, MG. The floristic list was obtained from the phytosociological survey in which 150 quarter-centered-points were established. A total of 147 species, 98 genera and 50 families were found. The families with the greatest number of species were: Melastomataceae (14), Leguminosae (11), Myrtaceae (10), Rubiaceae (8), Annonaceae (7), Flacourtiaceae (7), Lauraceae (7) and Meliaceae (6). The results of the cluster analysis showed that the aspects of geographic proximity and altitude are the main factors responsible for the floristic similarity of many areas. The vegetation of the studied area can be classified as Montane Semideciduous Seasonal Forest, since its floristic composition shows a great similarity with other areas of the same typology.