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SSSI Guidelines: Chapter 15. Charophytes 2020


Guidelines for the Selection of biological SSSIs. Part 2: Detailed guidelines for habitats and species groups

The statutory nature conservation agencies have a duty under the Wildlife and Countryside Act 1981, as amended, to notify any area of land which in their opinion is 'of special interest by reason of any of its flora, fauna, or geological or physiographical features'. Such areas are known as Sites of Special Scientific Interest (SSSIs).

This chapter covers charophytes (stoneworts), and is accompanied by Appendix 1 (Great British charophyte species and current conservation status), available in spreadsheet format.

For more information about the SSSI Guidelines, and to access the other chapters, visit the SSSI Guidelines webpage.

This resource may not be fully accessible for all users. If you need a copy in a different or more accessible format, please contact

Resource type Publication

Topic category Biota

Reference date 2020·11·01

Hatton-Ellis, T., Taylor, I, Lawrie, E. & Maggs, C. 2020. Guidelines for the Selection of Biological SSSIs. Part 2: Detailed Guidelines for Habitats and Species Groups. Chapter 15 Charophytes (Stoneworts). JNCC, Peterborough.

This chapter updates and replaces the previous charophytes SSSI selection guidelines, which were part of the non-vascular plant chapter (Hodgetts 1992).

Responsible organisation
Communications, JNCC publisher

Limitations on public access No limitations

Use constraints Available under the Open Government Licence 3.0

Metadata date 2022·12·19

Metadata point of contact
Communications, JNCC

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