@article{sousa_campelo_matias_2018,  title={Flora do Ceará: Pontederiaceae},  volume={69},  ISSN={2175-7860},  url={https://doi.org/10.1590/2175-7860201869412},  DOI={10.1590/2175-7860201869412},  number={4},  journal={Rodriguésia},  publisher={Instituto de Pesquisas Jardim Botânico do Rio de Janeiro},  author={Sousa, Danilo José Lima de and Campelo, Maria Jaciane de Almeida and Matias, Lígia Queiroz},  year={2018},  month={Oct},  pages={1641–1657} }