⚠ Version 1 of The Plant List has been superseded.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 richardii in version 1.1 of The Plant List.
This name is a synonym of Sematophyllum subsimplex .
The record derives from Tropicos which reports it as a synonym (record 35119297
) with original publication details: Sp. Musc. Frond., Suppl. 1 2: 204. pl. 93 204 1816.