This name is a synonym of Veronica ciliata subsp. cephaloides (Pennell) D.Y. Hong.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 29207850) with original publication details: Acad. Nat. Sci. Philadelphia Monogr. 5: 84 1943.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:811795-1.
This name was in version 1 of The Plant List, record tro-29207850, and has not been changed.