👉 Enneaphyllous is a term used in plant physiology, specifically for the type of cell found in plants that are surrounded by a layer of cells called an "envelope." Enneaphyllous cells typically contain chloroplasts and have a cell wall composed primarily of cellulose. These cells play a crucial role in photosynthesis, where they capture light energy from sunlight to convert carbon dioxide into glucose through the process of photosynthesis.