Flora Brasiliensis, enumeratio plantarum in Brasilia hactenus detectarum, Monachii et Lipsiae Munich & Leipzig, R. Oldenbourg, 1840-1906, Brazil, Germany, engraving, botany, 1840, uncolored, botanists, pictorial works, graphic media, The illustration features a botanical study of Lemna minor, commonly known as duckweed. On the left, two detailed depictions showcase the plant's slender stems and freestanding leaves, emphasizing their unique elongated shape. The central section provides a close view of the flower structure, highlighting the intricacies of its reproductive parts. Flanking the main illustrations are smaller sketches presenting various stages of flower and leaf development, offering a comprehensive examination of the plant's morphology. This detailed portrayal underscores the delicate features and growth patterns of Lemna minor, crucial for understanding its ecological role and botanical classification.