The Vascular Flora of the Cerrado in Emas National Park (Central Brazil): a Savanna Flora Summarized

摘要

The Brazilian cerrado may be divided in two main phy to geographic sectors: one characterized by Piptocarpharotundifolia, in which the Emas National Park (ENP) is located, and other characterized by Curatella americana.We carried out afloristic survey in ENP, which allowed an assessment of the taxonomic composition, taxa size, andsimilarity with other sites for the ENP's vascular flora. We compared the ENP's flora with southeastern outlyingcerrado sites, also in the Piptocarpha sector, and with general floristic patterns in the cerrado vegetation. Thedistribution of species per family in ENP was significantly different from that obtained for each component of thegeneral cerrado flora. The herbaceous component was characterized by an overproportion of Myrtaceae and anunderproportion of Orchidaceae and Lythraceae; and the woody component, by an overproportion of Myrtaceaeand Nyctaginaceae. When compared with outlying cerrado sites, the ENP was quite distinct, not only at specieslevel, but also at family level.