Ecogeografia de Lippia rotundifolia Cham. (Verbenaceae) em Minas Gerais, Brasil

Abstract

Lippia rotundifolia is a specie native to the Brazilian Cerrado, endemic to the Cadeia do Espinhago mountain range. Due to the limited information about the species, the present study aimed to characterize the ecogeography, climate conditions and physical and chemical characteristics of the soil of Lippia rotundifolia in the state of Minas Gerais, Brazil. Thirteen sites were ecogeographically characterized: Parque Estadual Veredas do Peruagu; Gigante; Rio do Peixe; AEP of Olhos D’água; Joaquim Felicio; Parque Estadual do Rio Preto; São Gongçalo do Rio das Pedras; Rio Tigre; RPPN Brumas do Espinçago; Lapinha; Poço Bonito; Abóboras; and Parque Estadual de Serra Nova. Environments belonged to Cerrado and Caatinga biomes, specifically in rocky and altitude fields. The species occurs at altitudes between 6911311m, with precipitation between 700 to 1600mm and average temperature between 14.5 to 24°C. In these vegetation types, the soils were sandy, hyper dystrophic and highly toxic with a low cation exchange capacity. These characteristics make the species undemanding with regard to edaphoclimatic and ecogeographic factors.