Elements of Botany London, Printed for the Author by J. Whiting, 1812. Botany, Flowers, Stems, Leaves, Bulbs, Roots, The illustration depicts four distinct types of bulbous roots, each labeled for clarity. The first root, labeled 'I. Solid,' is characterized by a smooth and compact structure. The second root, 'II. Scaly,' showcases a more layered appearance, suggesting a scale-like texture. The third root, 'III. Coated,' features an outer layer that appears protective or insulating. Finally, a fourth bulbous root is visible in the bottom corner, potentially highlighting additional characteristics of bulbous roots. The arrangement and labeling provide a clear educational focus on the diversity of bulbous root structures.