Tetrodontium brownianum

Tetrodontium brownianum is a species of moss commonly known as Brown's tetrodontium moss[2] or Brown's four-tooth moss.[3] It is widely distributed. In North America it is found in Washington state and British Columbia on the west coast and from Newfoundland to Ohio to the east.[1] It is also present in Austria, France, Germany, Ireland, Norway, Sweden, Switzerland and the United Kingdom as well as Japan, New Zealand and Chile.[4][5]

Brown's four-tooth moss
Scientific classification
Kingdom:	Plantae
Division:	Bryophyta
Class:	Tetraphidopsida
Order:	Tetraphidales
Family:	Tetraphidaceae
Genus:	Tetrodontium
Species:	T. brownianum
Binomial name
Tetrodontium brownianum Dickson. Schwaegr.[1]

It is named after Robert Brown, the Scottish botanist who first discovered the plant growing at Roslin near Edinburgh in the late 18th century whilst still a student. The plant can still be found at the site of its discovery.[6]