⚠ Version 1 of The Plant List has been superseded.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 gracile in version 1.1 of The Plant List.
This name is a synonym of Thuidium microphyllum var. ravenelii .
The record derives from Tropicos which reports it as a synonym (record 35117643
) with original publication details: Musci Hep. U.S. (repr.) 279 [Schedae 60] 279 1856.