This name is a synonym of Philonotis fontana var. magellanica (Brid.) Brid..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35111931) with original publication details: Prodr. Aethéogam. 43 1805.
This name was in version 1 of The Plant List, record tro-35111931.