Ptychostomum turbinatum

Ptychostomum turbinatum, also known as topshape thread-moss or pear-fruited bryum, is a species of moss found in continental Europe and the US.Inventaire National du Patrimoine NaturelUSDA Plants Database 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.Natural History Museum - Bryum turbinatum

Splachnobryum kieneri is listed by the USDA as a synonym.USDA Plants Database

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

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

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