German: Süsswassertang.
Region: South East Asia; China.
Habitat: in humid forests; up to 1200 meters altitude; epiphytic on trees or among rocks in dry river beds.
Excology: capable of absorbing the neurotoxin BMAA from contaminated waters.
Use: aquarium, decoratiitive.

BotanyLeaves: pinnate when mature; up to 1 meter long; prothallia.

TaxonomyIt was long considered to be a liverwort; all specimens in the aquarium trade are assumed to be clones of the original plant introduced in 2001; commonly confused with Pellia and Monosolenium.