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On-line version ISSN 1806-9088
ATAIDE, Eduardo Silva; CASTRO, Paulo de Tarso Amorim and FERNANDES, Geraldo Wilson. Floristic and characterization of the rupestrian ferruginous field area in the Alegria Complex Mining, Serra de Antônio Pereira, Ouro Preto, Minas Gerais, Brazil. Rev. Árvore [online]. 2011, vol.35, n.6, pp.1265-1275. ISSN 1806-9088. http://dx.doi.org/10.1590/S0100-67622011000700013.
This study presents the floristic inventory of the rupestrian ferruginous field areas located inSerra de Antônio Pereira, in the south-southeast of Quadrilátero Ferrífero region in Ouro Preto, MG. There, two different substratcts were surveyed: the canga couraçada, a hard ferruginous laterite, and itabirite rock outcrop. In each substract, 15 sample units (10mx10m) were studied. All the samples units were made with the same slope. The data collected were only restricted to the phanerogam species found in the samples units and surrounding areas. The floristic inventory done at Serra de Antônio Pereira found 182 species united in 47 families, of which 102 species occur inside the sample units and other 80 species in surrounding areas. The richest species families in the samples units were: Asteraceae (14 spp), Poaceae and Orchidaceae (8 spp each), Fabaceae and Melastomataceae (7 spp each), Myrtaceae and Verbenaceae (6 spp each), Cyperaceae, Lauraceae, Rubiaceae and Euphorbiaceae (4 spp each). Both the studied units, canga couraçada and itabirite outcrop, showed similarities.
Keywords : Sample units; Serra de Antônio Pereira; Canga couraçada.