@article{castro_oliveira_2001,  title={Reproductive biology of the protandrous Ferdinandusa speciosa Pohl (Rubiaceae) in Southeastern Brazil},  volume={24},  ISSN={0100-8404},  url={https://doi.org/10.1590/S0100-84042001000200006},  DOI={10.1590/S0100-84042001000200006},  number={2},  journal={Brazilian Journal of Botany},  publisher={Sociedade Botânica de São Paulo},  author={CASTRO, CIBELE CARDOSO DE and OLIVEIRA, PAULO EUGÊNIO ALVES MACEDO DE},  year={2001},  month={Jun},  pages={167–172} }