This name is a synonym of Sphagnum fuscum (Schimp.) H. Klinggr..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35176134) with original publication details: Hedwigia 33: 309 1894.
This name was in version 1 of The Plant List, record tro-35176134, and has not been changed.