Metzgeriales
Quick Summary
The order Metzgeriales is a group of liverworts, which are small, nonvascular, spore-producing plants belonging to the division Marchantiophyta. Liverworts are found worldwide, with most species thriving in tropical regions.1
The Metzgeriales order is characterized by a thallose (flattened, ribbonlike) body that is typically uniform in thickness. These plants usually grow horizontally, though some can be erect. They reproduce sexually via spores and asexually through fragmentation or gemmae. The sporophyte, which develops from a fertilized egg, is dependent on the gametophyte and contains a sporangium that releases spores. This order includes about 30 genera and 550 species.12
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bryophyteForm and function…genera of the liverwort order Metzgeriales, the water-conducting cells have a form similar to water-conducting cells of vascular plants, but the cells of the liverworts and hornworts, like those of mosses, lack the lignin that characterizes the cell walls of water-conducting cells of vascular plants.
Read More…genera of the liverwort order Metzgeriales, the water-conducting cells have a form similar to water-conducting cells of vascular plants, but the cells of the liverworts and hornworts, like those of mosses, lack the lignin that characterizes the cell walls of water-conducting cells of vascular plants.
Read More- bryophyteAnnotated classification
Order Metzgeriales Thallose, with the thallus mainly of uniformly thickened cell walls, usually reclining but sometimes erect; branching varies from forked to regularly pinnate or irregular; smooth rhizoids on the undersurface; sex organs lateral; sporophytes with elongate seta; sporangia spherical to elongate, with elaters and thickenings…
Read MoreOrder Metzgeriales Thallose, with the thallus mainly of uniformly thickened cell walls, usually reclining but sometimes erect; branching varies from forked to regularly pinnate or irregular; smooth rhizoids on the undersurface; sex organs lateral; sporophytes with elongate seta; sporangia spherical to elongate, with elaters and thickenings…
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