⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Hypnum fluitans in version 1.1 of The Plant List.
This name is a synonym of Harpidium fluitans var. deinbollii .
The record derives from Tropicos which reports it as a synonym (record 35112379
) with original publication details: Acta Soc. Sci. Fenn. 10: 72 72 1871.