@article{vieira_1986,  title={<i>Tocoyena bullata</i> (Vell.) Mart. (Rubiaceae). Anatomia foliar},  volume={38-40},  ISSN={2175-7860},  url={https://doi.org/10.1590/2175-7860198619883840646604},  DOI={10.1590/2175-7860198619883840646604},  number={64-66},  journal={Rodriguésia},  publisher={Instituto de Pesquisas Jardim Botânico do Rio de Janeiro},  author={Vieira, Ricardo Cardoso},  year={1986},  pages={33–39} }