''Sciaromiopsis sinensis'' is a species of

moss Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...

in the family

Amblystegiaceae Amblystegiaceae is a family of mosses. It includes 20 to 30 genus, genera with a total of up to 150 species.endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, where it is known from only three locations. This is an aquatic moss that only grows in clear rivers and streams. It has not been seen since the first specimens were collected 100 years ago, and its known habitat is now polluted and heavy with

silt Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when ...

, so it is possible that it has become extinct.''Sciaromiopsis sinensis''.
Swedish University of Agricultural Sciences. This moss forms glossy brown mats with branching stems up to 12 centimeters long.

References

Endemic flora of China Endangered plants Hypnales Taxonomy articles created by Polbot {{Bryophyte-stub