Pleurozia | |
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Scientific classification | |
Kingdom: | Plantae |
Division: | Marchantiophyta |
Class: | Jungermanniopsida |
Order: | Jungermanniales |
Family: | Pleuroziaceae (Schiffn.) Müll. [1] |
Genus: | Pleurozia Dumort. [2] |
Species | |
Pleurozia acinosa |
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Synonyms | |
Eopleurozia Schust. |
Pleurozia is the only genus of liverworts in the family Pleuroziaceae, which is classified within the order Jungermanniales.[3] The genus includes eleven species,[4] and as a whole is both physically distinctive and widely distributed.[5] 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.[6]