Ptychostomum turbinatum explained

Ptychostomum turbinatum, also known as topshape thread-moss or pear-fruited bryum, is a species of moss found in continental Europe and the US.^{[1] [2]} The species became extinct across the British Isles in the 1940s according to the Species Recovery Trust and in 2001 according to the IUCN, and it has not reestablished since.^{[3] [4] [5]}

Splachnobryum kieneri is listed by the USDA as a synonym.^[6]

It grows on the edges of ditches and ponds, on calcareous, gravelly ground.

The leaves' color ranges from dull green to yellow-green.

Notes and References

1. https://inpn.mnhn.fr/espece/cd_nom/5773?lg=en Inventaire National du Patrimoine Naturel
2. https://plants.usda.gov/core/profile?symbol=BRTU2 USDA Plants Database
3. Web site: Species Recovery Trust - Lost Life . 2019-07-08 . https://web.archive.org/web/20190428193658/http://www.speciesrecoverytrust.org.uk/LostLife.html . 2019-04-28 . dead .
4. Web site: British Bryological Society . 2019-07-08 . https://web.archive.org/web/20190531140115/http://britishbryologicalsociety.org.uk/ . 2019-05-31 . dead .
5. https://www.nhm.ac.uk/our-science/data/uk-species/species/bryum_turbinatum.html Natural History Museum - Bryum turbinatum
6. https://plants.usda.gov/core/profile?symbol=BRTU2 USDA Plants Database