Borreria apodiensis (Rubiaceae: Spermacoceae), a new species from Ceará and Rio Grande do Norte, Brazil

A new species of Borreria (Rubiaceae) from Chapada do Apodi in northeastern Brazil is described and illustrated. A distribution map, illustrations, a conservation assessment, a key to morphologically similar taxa and images of the seeds and pollen grains are provided.

Keywords
Caatinga; northeastern Brazil; pollen grains; Rubioideae; seeds; semiarid; taxonomy