@article{1998,  title={
     },  volume={12},  ISSN={0102-3306},  url={https://doi.org/10.1590/S0102-33061998000300012},  DOI={10.1590/S0102-33061998000300012},  number={3},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  year={1998},  month={Sep},  pages={288–293} }