Ferns belong to the division Pteridophyta. The plant body of a pteridophyte is differentiated into root, stem, and leaves. They are found in cool, damp, and shady places and have specialized tissues for the conduction of water and food. Ferns are economically important plants as they are used for ornamental purposes. Some of the ornamental ferns are the sword fern- Nephrolepis, the holly fern - Cyrtomium, the leatherleaf fern - Rumohra.