@article{pires_rodrigues_1971,  title={Notas sôbre os gêneros Polygonanthus e Anisophyllea},  volume={1},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921971012007},  DOI={10.1590/1809-43921971012007},  number={2},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Pires, João Murça and Rodrigues, William A.},  year={1971},  month={Aug},  pages={7–15} }