Tags: Moss.
Marchantiales is an order of thallose liverworts that includes species like Marchantia polymorpha a widespread plant often found beside rivers and Lunularia cruciata a common and often troublesome weed in moist temperate gardens and greenhouses. As in other bryophytes the gametophyte generation is dominant with the sporophyte existing as a short-lived part of the life cycle dependent upon the gametophyte.
