The prothallus of a fern is normally:

In the plant shown in the given figure,which is the haploid,short-lived stage as a gametophyte?

Identify the pair of heterosporous pteridophytes among the following:

What is the gametophytic stage of Pteridophytes?

The name "Walking Fern" is given because of:

In some of the pteridophytes and gymnosperms,the sporophylls aggregate at the apices of the main stem or its branches to form definite compact structures. These compact structures are called: