👉 Phyllomorphic is a term used in plant anatomy to describe a type of leaf that has developed from a single cell. This process occurs when a leaf divides into two identical cells, each with its own stem and leaves attached to it by a common middle cell called a petiole. The phyllotaxis of the leaf is determined by this unique arrangement of cells and can result in a wide variety of shapes and sizes. Phyllomorphic leaves are often used as models for understanding plant development and