👉 The term "hydrophyllium" is a term used in plant science and botany. It refers to a type of plant cell wall that is composed primarily of cellulose, which is a polymer made up of glucose molecules linked together by glycosidic bonds. Hydrophylliums are found in the walls of many plants, including those that produce fruits and vegetables. They have been used for centuries as a source of fiber and other materials, such as paper, textiles, and rope