This name is a synonym of Aulacomnium heterostichum var. humile (Müll. Hal.) Paris.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35172806) with original publication details: Not. Sällsk. Fauna Fl. Fenn. Förh. 9: 78 1868.
This name was in version 1 of The Plant List, record tro-35172806.