Ferns: British and exotic. 1856-60, ferns, Polypodium deflexum, Alexander Francis Lydon, Ctenitis deflexa, This illustration displays a botanical study of the Polypodium depressum, commonly known as a type of fern. The composition features elongated fronds with a vibrant array of serrated leaflets, showcasing their intricate patterns and textures. The upper sections of the fronds exhibit a golden-brown tint, indicative of spore development, while the lower parts remain a rich green, highlighting the lushness of the plant. The delicate detailing emphasizes each leaf's unique structure, contributing to the overall beauty and complexity of this fern species. An ornamental border and a numeric notation denote its classification within a botanical catalog.