Palms a typical element of tropical forests. In Paraná state, Arecaceae is represented by 23 species, distributed in all vegetation types. This study aimed to survey the native palms in Campo Mourão, Paraná, and provide more information on the biology of confirmed species. The study was conducted in areas of Subtropical Seasonal Forest, Subtropical Mixed Forest (with Araucaria) and Tropical Savanna remnants (Cerrado), as well as collections from the herbaria FUEL, HCF, MBM and SP. Seven species were confirmed: Acrocomia hassleri (Barb. Rodr.) W.J. Hahn; Allagoptera campestris (Mart.) Kuntze; Butia microspadix Burret, B. paraguayensis (Barb. Rodr.) L.H. Bailey; Euterpe edulis Mart.; Geonoma schottiana Mart. and Syagrus romanzoffiana (Cham.) Glassman. The three different vegetation types found in Campo Mourão are the source of the high number of Arecaceae species found. Due to the great degree of destruction of the Cerrado in Campo Mourão, A. hassleri and B. paraguayensis are at risk of extinction. Butia microspadix was not found in the remnants and was considered extinct in the municipality. One species, Acrocomia emensis (Toledo) Lorenzi, was not been confirmed for Paraná state. Among the forest species, E. edulis and G. schottiana also have a small number of populations and require action to ensure protection.
Arecaceae; Cerrado; conservation; extinction; tropical forest
