Four ornamental greenhouse flowers, including coral bush (Templetonia retusa). Coloured lithograph, c. 1848. https://www.rawpixel.com/image/13966299/image-flower-plant-medicineFree Image from public domain licenseA plant (Aspalathus glomerata): flowering stem with floral segments. Coloured engraving, c. 1804, after H. Andrews. https://www.rawpixel.com/image/13963906/image-flower-plant-treeFree Image from public domain license