Which of the following is not true for $Riccia$?

Identify the mosses and liverworts from the following list:
$I$ - $Sphagnum$,$II$ - $Funaria$,
$III$ - $Marchantia$,$IV$ - $Polytrichum$
$\text{Mosses} \quad\quad \text{Liverworts}$

In mosses,the second gametophytic stage is the leafy stage. Consider the following statements about the leafy stage:
$I.$ The leafy stage is produced from the secondary protonema as a lateral bud.
$II.$ They consist of upright,slender axes bearing spirally arranged leaves.
$III.$ They are attached to the soil through multicellular rhizoids.
$IV.$ This leafy stage bears the sex organs.
Which of the statements given above are correct?

Which bryophyte is known as peat moss?

Spores of $Riccia$ are liberated by

In a moss capsule,the dispersal of spores takes place through: