Duas novas espécies de Calliandra Benth.: (Leguminosae - Mimosoideae) da Chapada Diamantina, Bahia, Brasil

摘要

Two new species of Calliandra are described from the Chapada Diamantina, state of Bahia, eastern Brazil. Calliandra geraisensis E.R. Souza & L.P. Queiroz is related to C. calycina Benth. but it differs in its depauperate habit, distichous leaves and absence of glandular trichomes on the perianth. Calliandra imbricata E.R. Souza & L.P. Queiroz is a shrubby plant similar to C. erubescens Renvoize from which it differs by having the leaves with more pinnae and more leaflets and by its red stamens. Both species occur in the mountains of the Chapada Diamantina region and are narrow endemics from a small area near the town of Piat?.