The leaf and soil nutrient status of plants has been used to infer structural and functional aspects at the ecosystem level. Such data are available for tropical and savanna systems growing on poor and acidic soils; however, ...

We report the first record of Oziroë argentinensis (Asparagaceae) for Brazil, previously known from Paraguay, Bolivia, and Argentina. The plant was collected in the state of Mato Grosso do Sul, growing between limestone ...

The first new species of Denscantia from the caatinga biome is described and illustrated. Denscantia calcicola is easily distinguished by its plicate–nerved and scabrous leaves, axillary inflorescences with 7–15 glomerules, ...

The occurence of carbonatic rocks defines a typical type of relief, called karst, that, by its geomorphology and hydrology, usually differs from the surrounding landscape. In the upper São Francisco river basin, some ...

Peperomia calcicola is here described as a new species from the Atlantic Forest of São Paulo state, southeastern Brazil. The species was found on limestone outcrops in the understory of rainforest in the Alto Ribeira State ...

A new species of bromeliad, Acanthostachys calcicola, a third taxon for the genus, is here described. A. calcicola was discovered during field work in the limestone outcrops of south-eastern Tocantins, central Brazil. It ...