This name is a synonym of Grimmia donniana Sm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35133552) with original publication details: Handb. Skand. Fl. (ed. 4) 374 1843.
This name was in version 1 of The Plant List, record tro-35133552.