Kozlowski, Gregor, Freigang, Jens, Pasta, Salvatore, Guarino, Riccardo, Anania, Francesco, Champoud, Luca, Garfì, Giuseppe, Gristina, Alessandro Silvestre, Marcenò, Corrado, Picone, Rosa Maria, and Crisafulli, Alessandro. 2025. Update on the current occurrence of two rare fern species in Sicily (Italy): Dryopteris affinis (Lowe) Fraser-Jenk. and D. robusta (Oberh. et Tavel ex Fraser-Jenk.) P. D. Sell. in the Peloritani Mountains. Mediterranean Botany 46, 2, e99974. DOI:https://doi.org/10.5209/mbot.99974