· Bryophytes are cryptogams (i.e. they don't bear flowers or seeds) or flowerless or seedless plants. · Bryophytes have a thalloid body which is differentiated into stems, and leaves but no true roots. Classification of Bryophyta Class I: Hepaticae or thalloid Liverworts. eg. Riccia, Marchantia Class II: Anthocerotae or Horned Liverworts or Hornworts eg. Anthoceros Class III: Musci or Mosses eg. Funaria, Polytrichum. · Study of Bryophyte: Bryology · Father of Bryology: Hedwig · Term Atracheophyte was used for Bryophytes by Oswald Tippo. · Bryophytes are the first land-inhibiting plants · These are the first embryophytes and the first plant in the plant kingdom to have a heteromorphic alternation of generation. · Simplest group of land plants · Vascular tissue (xylem and phloem) is absent. · The plant body thallus is differentiated into simple leaf and stem. · They lack true roots, stems, and leaves. · True roots are absent and water is necessary for fertilization...