Elaters are present in the sporogonium of

The group of $Bryophytes$ includes .........

Bryophytes possess:

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 creeping,green,branched,and frequently filamentous stage is called .....

What is incorrect for $Sphagnum$?