干旱区生态环境知识资源中心

Aimed to study the floristic composition of the shrub-tree layer in the areas in Caatinga baiana, Brazil. The study was made being used in each area 100 contiguous parcels of 10 x 10m. The collected material was deposited in the herbarium Jaime Coelho de Morais of UFPB and through consultations in specialized literature. They were registered in Senhor do Bonfim 1.793 individuals distributed in 52 species and 23 families. In the area of Jacobina were presented 1.961 individuals which were distributed in 62 species and 24 families. In Senhor do Bonfim, the families with larger number of species were Euphorbiaceae, Leg. Mimosoideae, Malvaceae and Rubiaceae. In Jacobina they stood out: Euphorbiaceae, Leg. Mimosoideae, Myrtaceae, Cactaceae, Leg. Caesalpinoideae, Malpighiaceae and Malvaceae. It was observed it influences her predominant of six species in the community of both areas. The analysis of similarity floristica indicated that for the two areas the similarity was very low. It was verified that the studied areas presented composition varied floristic.