@article{viani_vieira_2007,  title={Flora arbórea da bacia do rio Tibagi (Paraná, Brasil): Celastrales sensu Cronquist},  volume={21},  ISSN={0102-3306},  url={https://doi.org/10.1590/S0102-33062007000200019},  DOI={10.1590/S0102-33062007000200019},  number={2},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  author={Viani, Ricardo Augusto Gorne and Vieira, Ana Odete Santos},  year={2007},  month={Apr},  pages={457–472} }