This name is a synonym of Calibrachoa calycina (Sendtn.) Wijsman.
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Novon 7: 419 1997 publ. 1998.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:999475-1.
This name was in version 1 of The Plant List, record kew-2691832, and has not been changed.