This name is a synonym of Bryum rivulare subsp. velenovskyi (Podp.) J.J. Amann.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35116203) with original publication details: Festschr. Ascherson 291 1904.
This name was in version 1 of The Plant List, record tro-35116203.