@article{della colleta_silva_2008,  title={Morfoanatomia foliar de microorquídeas de Ornithocephalus Hook. e Psygmorchis Dodson & Dressler},  volume={22},  ISSN={0102-3306},  url={https://doi.org/10.1590/S0102-33062008000400017},  DOI={10.1590/S0102-33062008000400017},  number={4},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  author={Della Colleta, Rayza Carla Lopes and Silva, Ivone Vieira da},  year={2008},  month={Oct},  pages={1068–1076} }