This name is a synonym of Cupressus × notabilis (A.F.Mitch.) Silba.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 383023) with original publication details: J. Roy. Hort. Soc. 95: 453 1970.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:294858-1.
This name was in version 1 of The Plant List, record kew-2748569.