This name is a synonym of Phoradendron juniperinum A. Gray.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 19100425) with original publication details: Brittonia 16(1): 24 1964.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:194100-2.
This name was in version 1 of The Plant List, record tro-19100425.