Abstract
The Nova Lima city (metropolitan area of Belo Horizonte, Minas Gerais State, Brazil) is located in an ecotone between Cerrado (Brazilian Savanna) and Atlantic Forest, wich are two of the world's biodiversity hotspots. A floristic survey was carried out in a semideciduous forest (20°00' S and 43°55' W) in order to establish its relations with other forests (rain forest and semideciduous) from both hotspots, as well as to assess their phytogeographical insertion. The region is under high pressure due to urban expansion. The floristic survey of the semideciduous forest was based on specimens of woody plants collected both in and outside of 44 plots of 20 × 5 meters. The studied forest was compared with other 72 forests of Minas Gerais, Sao Paulo, Espirito Santo, Rio de Janeiro and Goias States and the Federal District using multivariate analyses. At semideciduous forest 205 species of 49 botanical families were found. The record of species with restricted distribution to Atlantic Forest was 15 times greater than in the Cerrado. The tree flora of the semideciduous forest studied is a subset of that of rainforests, with species that are more efficient in coping with a longer dry season. Thus, the forest may be considered an Atlantic Forest.
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