This name is a synonym of Calibrachoa linoides (Sendtn.) Wijsman.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 29600987) with original publication details: Fl. Bras. 10: 174 1846.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:817254-1.
This name was in version 1 of The Plant List, record tro-29600987, and has not been changed.