Characteristics of Bryophyta:
(i) They are multi-cellular green land plants.
(ii) Their plant body is a flat, green thallus in liverworts and a leafy, erect structure in mosses. They lack real roots, stems, leaves and flowers.
(iii) They lack a true vascular system.
(iv) Gametophyte is attached to substratum via hair-like outgrowths called rhizoids.
Examples: Riccia and Marchantia.