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SlideshowReport

Liverworts

Description
(a) The common liverwort Marchantia polymorpha, with raised, umbrella-shaped structures that bear sexually produced sporophytes on the undersides. Mature sporophytes generate and then release spores. (b) A close-up of M. polymorpha showing surface cups that contain multicellular, concave, disk-shaped asexual structures known as gemmae that are dispersed by wind and grow into new liverworts. (c) A species of liverwort having leaflike structures, known as a leafy liverwort.
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