Ocorrência de espécies de Cyperaceae em um remanescente de Cerrado

Abstract

Abstract Cyperaceae is a cosmopolitan family and ranks third among monocotyledonous families in terms of species richness, also being one of the ten most diverse families in the Neotropics. In Mato Grosso do Sul state, 357 species distributed among approximately 45 genera are currently recorded; however, floristic and taxonomic studies focusing on Cyperaceae remain scarce, particularly in the municipality of Três Lagoas. This study aimed to conduct a taxonomic survey of Cyperaceae species occurring in the Capivaras Municipal Natural Park (PNM Capivaras), located in Três Lagoas, MS, Brazil. The park is a conservation unit situated in an ecotonal zone between the Cerrado and Brazilian Atlantic Forest, characterized by forest formations and seasonally humid grasslands. Thirteen field expeditions were performed, resulting in the collection of 71 specimens, of which 28 species belonging to six genera were identified. The most representative genera were Cyperus (9 spp.), Rhynchospora (9 spp.), Eleocharis (4 spp.) and Scleria (4 spp.). The results demonstrate the importance of the study area for regional biodiversity and reinforce the relevance of floristic surveys in poorly documented areas of the Cerrado.