Parris, Barbara S. “The Flora Malesiana Account of Grammitid Ferns (Polypodiaceae) : A Progress Report With an Illustrated Synoptic Key to Malesian Genera”. Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 16 (July 26, 2018): 23–37. Accessed June 29, 2025. https://journals.rbge.org.uk/rbgesib/article/view/245.