This name is a synonym of Primula farinosa var. hornemanniana (Lehm.) Pax.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50288302) with original publication details: Monogr. Primul. 55–56, pl. 4 [right] 1817.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:702056-1.
This name was in version 1 of The Plant List, record tro-50288302, and has not been changed.