Marchantiales

plant order

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Last updated

June 30, 2026

Quick Summary

The Marchantiales are an order of liverworts, which are simple, terrestrial plants. These plants are characterized by a ribbonlike, branched gametophyte (sexual plant) that often grows on moist soil. A key feature is the presence of air chambers within the thallus, visible as diamond-shaped markings on the surface, with pores for air diffusion.

Reproductive structures differ between male and female plants. Male structures are disk-shaped, while female structures have fingerlike projections. Fertilization occurs when raindrops splash sperm onto female plants, leading to the development of sporophytes (asexual plants). Vegetative reproduction also occurs through asexual buds called gemmae or by fragmentation of the plant body. The sporophyte in Marchantiales has a jacket layer that is only one cell thick.12

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bryophyte
Annotated classification
Order Marchantiales Thallus often of complex anatomy, with air pores on the dorsal surface, air chambers with chlorophyllose cells forming a photosynthetic area, and cells of the remainder of the thallus serving for storage; ventral scales often present; rhizoids; sex organs sometimes borne on a stalked…
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Order Marchantiales Thallus often of complex anatomy, with air pores on the dorsal surface, air chambers with chlorophyllose cells forming a photosynthetic area, and cells of the remainder of the thallus serving for storage; ventral scales often present; rhizoids; sex organs sometimes borne on a stalked…
Read More