1. Plants are divided into roots, stems and leaves.
2. Plant stems are transformed into rhizomes and covered with ramenta.
3. From the rhizomes slender, linear, apical and branched roots emerge. It is covered by ramenta.
4. Leaves are compound, young leaves have circinate vernation.
5. The leaves are attached to the rachis. Leaves have midveins and veins.
6. At the edge of the leaf, the sporangia are united to form a sorus. It is covered by phallus indusium.