This name is a synonym of Pohlia wahlenbergii var. calcarea (Warnst.) E.F. Warb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35127018) with original publication details: Allg. Bot. Z. Syst. 5(Beih. 1): 30 1899.
This name was in version 1 of The Plant List, record tro-35127018.