This name is a synonym of Brachythecium buchananii (Hook.) A. Jaeger.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35114365) with original publication details: Bull. Soc. Bot. Genève 3: 289 1911.
This name was in version 1 of The Plant List, record tro-35114365.