Histoire de plantes les plus remarquables du Brésil et du Paraguay, Paris, A. Belin, 1824. Brazil, description and travel, Paraguay, plants, The illustration showcases the detailed anatomy of the Spruillaria longifolia plant. The central stem features a series of elongated, ovate leaves, showcasing prominent veins. At the top, flowers are depicted in various stages of bloom, highlighting intricate petal structures. Surrounding the main plant figure are smaller sketches of its components, including individual flower parts and a seed pod, labeled for reference. The delicate lines and shading emphasize the botanical accuracy of the representation, serving as an educational resource for identifying this species.