Ferns: British and exotic, 1856-60, ferns, Alexander Francis Lyon, Polypodium diversifolium, A detailed botanical illustration featuring the fronds of the Polypodium diversipolium, showcasing its elongated leafy structure with delicate, pointed segments arranged in a symmetrical pattern along a central stem. The overall layout emphasizes the intricate details of the leaflets, highlighting their texture and the unique shape characteristic of this fern species. The artwork is complemented by the scientific name, elegantly presented at the bottom, contributing to its educational value in the study of plant taxonomy.