Vetch plant (Vicia sativa) with an associated insect and its anatomical segments. Coloured etching, c. 1830. https://www.rawpixel.com/image/13966806/image-butterfly-flower-plantFree Image from public domain licenseA horsetail plant (Equisetum species) with an associated beetle and its anatomical segments. Coloured etching, c. 1830. https://www.rawpixel.com/image/14014655/image-plants-art-animalFree Image from public domain licenseA liverwort (Hepaticae species) with an associated beetle and its anatomical segments. Coloured etching, c. 1830. https://www.rawpixel.com/image/13998296/image-paper-plants-artFree Image from public domain license