This name is a synonym of Phoradendron capitellatum Torr. ex Trel..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50102441) with original publication details: J. Wash. Acad. Sci. 29(11): 474 1939.
This name was in version 1 of The Plant List, record tro-50102441, and has not been changed.