The father of Indian Bryology is:

In which of the following plants are the male and female gametophytes haploid,autotrophic,and independent free-living?

Mosses (along with lichen) are of great ecological importance because

$A$: $Riccia$ is a very simple and primitive bryophyte.
$R$: In $Riccia$,the zygote undergoes division to form an embryo after fertilization.

The mode of nutrition of the moss sporophyte is:

Moss peat is used as a packing material for sending flowers and live plants to distant places because