Martínez, O.G., Hernández, M.A. and Serapio, F. 2023. Polystichum lionelii (Dryopteridaceae), a new Andean species from northwestern Argentina. Phytotaxa. 619, 2 (Oct. 2023), 189–196. DOI:https://doi.org/10.11646/phytotaxa.619.2.7.