In pteridophytes,the sporophytes consist of leaf-like appendages called

In $Selaginella$,when the sporophyte develops directly from the female gametophyte other than the oosphere,the condition is called:

Adaxial outgrowth from the base of leaves in $Selaginella$ is called:

The gametophyte of pteridophytes requires to grow$-$

Which of the following statements is correct for the given figure?

What is the chromosomal status of the gametophytic phase in pteridophytes?