@article{esteves_vicentini_2013,  title={Cryptic species in Pagamea coriacea sensu lato (Rubiaceae): evidence from morphology, ecology and reproductive behavior in a sympatric context},  volume={43},  ISSN={0044-5967},  url={https://doi.org/10.1590/S0044-59672013000400003},  DOI={10.1590/S0044-59672013000400003},  number={4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Esteves, Samantha de Miranda and Vicentini, Alberto},  year={2013},  month={Dec},  pages={415–428} }