Sphagnum palustre less frequent just North of London and west through to Bristol and patches in the Republic of Ireland. It is widespread in Scotland, Wales, Orkney, Shetland and the Isle of Man. It can be found on Scilly. "Sphagnum palustre" is not on the IUCN red list of threatened species and therefore isn’t considered to be threatened or endangered. In a project called Mossclone which is part of the 7th framework program of the European Union the peat moss "Sphagnum palustre" will be multiplied in moss bioreactors to create a measuring tool to track air quality in Europe. Sphagnum palustre Sphagnum
Plant cell quite elongated, and may divide transversely to give a septate appearance. The role of this cell type is to support the plant in axes still growing in length, and to confer flexibility and tensile strength on tissues. The primary wall lacks lignin that would make it tough and rigid, so this cell type provides what could be called plastic support – support that can hold a young stem or petiole into the air, but in cells that can be stretched as the cells around them elongate. Stretchable support (without elastic snap-back) is a good way to describe what collenchyma does.