This name is a synonym of Mimulus luteus var. variegatus Hook..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50206369) with original publication details: Bot. Cab. 16: t. 1872 1832.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:806133-1.
This name was in version 1 of The Plant List, record tro-50206369.