Liverworts are usually regarded as Bryophytes, together with mosses and hornworts. Recent taxonomy places them separately in a division called the Marchantiophyta, or even the Antheroceratophyta. However, since the classification is not yet settled, we keep the old terms for convenience.
Liverworts, are small plants with flattened bodies, or with flattened stems bearing overlapping scales.
Liverworts have a gametophyte-dominant life cycle. This is a type of alternation of generations similar to that of mosses. Cells in a typical liverwort plant are haploid for most of its life cycle. Their stalked sporophytes (diploid) are very short-lived, withering away soon after releasing the spores.
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Two hypotheses on the phylogeny of land plants (embryophyta).
Liverwort Facts for Kids. Kiddle Encyclopedia.