Some species of $Sphagnum$ provide....

In which of the following is the sporophyte parasitic on the gametophyte?

Which of the following is not a part of a moss capsule?

Which of the following in a moss capsule is haploid/gametophytic tissue?

Consider the following statements:
$I.$ The plants have a magnificent property of retaining water. They can withhold water $200$ times more than their own weight. Hence,they are widely used by gardeners to keep cut plant parts moist during transportation and propagation.
$II.$ These plants grow as semiaquatic or submerged in acidic marshes. The older portions of the plant die but do not decay due to peculiar germicidal properties.
The above statements belong to which of the following bryophytic plants?

In $Riccia$ / Bryophytes: