In $Funaria$,calyptra is derived from

Which of the following stages of $Funaria$ is haploid?

Assertion: The peristome is a fringe of teeth-like projections found at the mouth of the capsule.
Reason: It may be of two types: nematodontous and orthodontous.

In $Bryophyta$,the adult plant body is:

In moss,the medulla has:

The largest gametophyte is found in