Ptychostomum cyclophyllum

Ptychostomum cyclophyllum
Scientific classification
Kingdom: Plantae
Division: Bryophyta
Class: Bryopsida
Subclass: Bryidae
Order: Bryales
Family: Bryaceae
Genus: Ptychostomum
Subgenus: Ptychostomum subg. Ptychostomum
Species:
P. cyclophyllum
Binomial name
Ptychostomum cyclophyllum
(Schwägr.) J.R. Spence
Synonyms[1]
  • Bryum cyclophyllum (Schwägr.) Bruch & Schimp.

Ptychostomum cyclophyllum, round-leaved bryum,[2] is a species of moss belonging to the family Bryaceae.[1]

It is native to the Northern Hemisphere.[1] It grows in wetlands and along streams.[3]

In the UK, it has only been found to occur naturally in one location.[4][5] In 2025, efforts were made to establish it in the muddy waters of two reservoirs in Scotland, at Loch Coulter and Threipmuir Reservoir.[4][5]

References

  1. ^ a b c "Bryum cyclophyllum Bruch & W.P.Schimper, 1839". www.gbif.org. Retrieved 13 February 2021.
  2. ^ "Bryum cyclophyllum (Schwaegr.) Bruch & Schimp". NBN Atlas. Retrieved 25 January 2022.
  3. ^ Spence, John R. "Ptychostomum cyclophyllum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press. Retrieved 15 July 2024 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  4. ^ a b "Scotland's Rarest Moss Finds New Home at Stirling Reservoirs". Scottish Water. 2025-09-18. Retrieved 2025-12-09.
  5. ^ a b "Conservationists boost survival chances of Scotland's rarest moss". NatureScot. 2025-09-18. Retrieved 2025-12-09.