Elaters are present in the sporogonium of

Arrange the following events in a correct sequence with respect to the life cycle of mosses$:-$
$(I)$ Fertilization
$(II)$ Dispersal of spores
$(III)$ Protonema
$(IV)$ Leafy stage

In $Funaria$,leaves are arranged on the stem:

Read the given statements and choose the correct option:
Statement $I$: Gemmae are green unicellular sexual buds which develop in receptacles called gemma cups.
Statement $II$: Protonema develops directly from a spore.

The term $Bryophyta$ was given by

Which bryophyte is of economic importance?