The diversity of species and the factors determining the occurrence of cerrado vegetation have long called the attention of researchers. Many protected cerrados in Conservation Units have not been floristically and structurally studied. This work conducted a floristic and phytosociological survey of the Parque Nacional da "Serra do Cipó" ("Serra do Cipó" National Park) (19º22'01''S and 43º37'10''W). Twelve quadrats of 150 m² were established and all individuals with a stem circumference at ground level larger than or equal to 10 cm were sampled. A total of 44 species of 37 genera and 30 families were found. The richest families were Leguminosae Caesalpinioideae, Leguminosae Mimosoideae and Guttiferae, with three species each. The most important species (VI) were Hymenaea stigonocarpa, Allagoptera campestris, Diospyros hispida, Rapanea guianensis and Piptocarpha rotundifolia.
Phytosociology; "Serra do Cipó" National Park; cerrado; savanna
