This name is a synonym of Eucephalus glabratus (Greene) Greene.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 550FAE38-C7FE-4A1B-B714-F0C700C0FCF1) with original publication details: Bot. Gaz. 56 477 1913.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:24119-2.
This name was in version 1 of The Plant List, record gcc-138527, and has not been changed.