Monosolenium

Monosolenium tenerum, is a weedy species of liverwort found in east Asia. It is the only species in the genus Monosolenium and the family Monosoleniaceae. It is commonly confused with similar-looking plants in the aquarium trade like Pellia liverworts and Süsswassertang, a fern gametophyte.

== Ecology == Monosolenium tenerum is a terrestrial plant, growing on moist, shady soil, sometimes in association with Marchantia palmata. The species has an east Asiatic distribution. It has been found in east India (Assam, Himachal Pradesh, & Uttarakhand), Nepal, China (northwestern Sichuan, Guangdong, & Macau), Taiwan, as well as the Ryukyu Islands, Japan, and Hawaii. All areas where the plant grows are subtropical or temperate regions with mesic habitats, where there is ample supply of moisture. Perhaps it is because the species grows in such mesic climates that the thallus (plant body) has become simplified, since the chambered internal anatomy of other Marchantiales seems adapted to a climate with periodic drying and an unreliable water supply.