The characteristic feature of a fern is:

$S$: In $Pteridophytes$,spores are produced in sporangia.
$R$: In $Pteridophytes$,sporangia are produced on sporophylls.

Sporangia are associated with sporophylls. In $P$ plants,sporophylls are distinct,while in $Q$ plants,sporophylls form compact structures called strobili or cones.
$P \quad Q$

Ligulate leaves are found in

In ferns,sporangia are borne on the

Leaf of which of the following plants shows circinate vernation at the young stage?