Bryophytes can be separated form algae, because they 

Bryophytes and algae are both autotrophic, plant body thallus like and devoid of        vascular tissues. Instead of root, rhizoids are present for attachment and absorption purpose.  Both algae and Bryophytes have motile sperms and need water for fertilization. But bryophytes can be separated from algae because archegonium originated for the first time in bryophytes in plant kingdom. It is a flask shaped structure with swollen base called venter and upper elongated neck. The venter contains a venter canal cell and an egg cell. It surrounded by one celled thick sterile jacket layer. In algae sex organs are non – jacketed and unicellular.