Pteridophytes

Pteridophytes are a group of vascular plants commonly referred to as ferns and their allies, and are the earliest known group of land plants to possess leaves and true stems. They reproduce via spores and are the most primitive group of vascular plants. They are important ecologically, as they are a food source for many organisms, and they provide habitat and protection for many others. Pteridophytes are also important economically, as they are the source of foods such as mushrooms and truffles, and are the source of many pharmaceuticals. Additionally, they act as a source of fuel, timber, and many other natural products. Additionally, pteridophytes are a critical component of our environment, as they can reduce atmospheric carbon dioxide levels.