The genus Iris, Cambridge Cambridgeshire, 1913, iris, pictorial works, varieties, The illustration features a collection of four distinct Iris species. In the top left corner, an Iris shows slender, elongated petals in a delicate shade of blue. Adjacent to it, on the top right, another variety displays a softer hue with pale violet tones and intricate markings. The bottom left showcases a striking Iris with deep purple petals, marked by bold, contrasting streaks. Finally, the bottom right reveals another species characterized by a rich, dark purple, emphasizing its elegant, ruffled petal structure. Each flower is meticulously detailed, highlighting the unique characteristics and beauty of these captivating plants. The scientific names of the species are indicated below each illustration.