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Pteridófitas da Serra Negra, Minas Gerais, Brasil

DOI: 10.1590/S0102-33062012000200013

Keywords: atlantic forest, ferns, floristics, lycophytes, minas gerais.

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Abstract:

this work presents an inventory of pteridophyte species that occur in the serra negra, of minas gerais. the area is part of the mantiqueira range, and is situated between the coordinates 21o58'11"s 43o53'21" w, 22o01'4.4" s, 43o52'31.5" w, 21o58'21.4" s, 43o50'06.5" w and 21o58'53" s, 43o56'08" w. the vegetation in the serra negra is characterized by a mosaic of different phytophysiognomies, divided into forests (evergreen and seasonal semideciduous forests) and open formations (rocky grasslands). the inventory was carried out from 2003 to 2008, during monthly excursions to collect botanical material and data in the study area. a total of 209 species, distributed in 24 families and 75 genera, were recorded. the families with the highest number of species were polypodiaceae (40), dryopteridaceae (33) and pteridaceae (25). more than the half (110) of the inventoried species were recorded exclusively in the forests formations. sixty-nine species were terrestrial, 37 were saxicolous or terrestrial and 32 were epiphytes. this work shows that this region is rich in ferns and reveals the importance of this kind of study for conservation and management of pteridophytes in the state of minas gerais.

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