The aquatic ancestry of bryophytes can be proven by which of the following?

Peristome teeth of moss show:

Read the following statements about $Funaria$ and select the options which are correct.
$(a)$ Gametophyte is the dominant plant body.
$(b)$ The sporophyte is differentiated into foot, seta and capsule.
$(c)$ The $gemmae$ are asexual, green, multicellular buds found on the thallus.
$(d)$ The sporophyte has independent existence.

In Funaria,the number of peristomial teeth is

Bryophytes differ from Thallophytes in which of the following?

What is the contribution of the botanist Rothmaler in the classification of plants?