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Pleurozia
''Pleurozia'' is the only genus of liverworts in the family Pleuroziaceae, which is classified within the order Jungermanniales. The genus includes eleven species, and as a whole is both physically distinctive and widely distributed. The lower leaf lobes of ''Pleurozia'' species are fused, forming a closed water sac covered by a movable lid similar in structure to those of the angiosperm genus ''Utricularia''. These sacs were assumed to play a role in water storage, but a 2005 study on ''Pleurozia purpurea'' found that the sacs attract and trap ciliates, much in the same way as ''Utricularia''. Observations of plants ''in situ'' also revealed a large number of trapped prey within the sacs, suggesting that the species in this genus obtain some benefit from a carnivorous habit. After ''Colura'', this was the second report of zoophagy among the liverworts. == References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pleurozia」の詳細全文を読む
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