@article{silva junior_prado_ferreira_fernandes_oliveira_2024,  title={Lycophytes and ferns of an Amazonian-Cerrado ecotone in Maranhão State, Northeastern Brazil: identification key and annotated list of taxa.},  volume={24},  ISSN={1676-0603},  url={https://doi.org/10.1590/1676-0611-BN-2023-1564},  DOI={10.1590/1676-0611-BN-2023-1564},  number={2},  journal={Biota Neotropica},  publisher={Instituto Virtual da Biodiversidade | BIOTA - FAPESP},  author={Silva Junior, Wagner Ribeiro da and Prado, Jefferson and Ferreira, Alessandro Wagner Coelho and Fernandes, Rozijane Santos and Oliveira, Hermeson Cassiano de},  year={2024},  pages={e20231564} }