1) Mosses 
are members of the plant division Bryophyta. Members of this division are characterised by being small, rootless, thalloid or leafy, non-vascular plants. It includes liverworts, hornworts and mosses.
Plants of the phylum Bryophyta, including mosses, liverworts and hornworts, characterised by the lack of true roots, stems and leaves. ... (05 Dec 1998) ... 
Plant in the phylum Bryophyta comprising of the mosses, liverworts and hornworts.