Ferns: British and exotic. 1856-60, ferns, Alexander Francis Lyon, Polypodium icanum, Polypodium angustifolium, This illustration showcases two distinct botanical specimens. On the left, a finely detailed fern with elongated, serrated leaflets exhibits a layered structure, highlighting the intricate patterns of its fronds. The right side features a slender, elongated grass-like plant with a smooth texture and a prominent central vein, emphasizing its linear form. Both plants demonstrate the diversity of foliage, with contrasting shapes and textures that reflect the beauty of the natural world in their respective forms. The illustration is accompanied by a detailed label indicating the botanical classification.