⚠ Version 1 of The Plant List has been superseded.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 Didymodon rigidulus in version 1.1 of The Plant List.
This name is a synonym of Barbula rigidula var. major .
The record derives from Tropicos which reports it as a synonym (record 35132100
) with original publication details: Sitzungsber. Königl. Böhm. Ges. Wiss. Prag 1899(44): 14 14 1899.