This name is a synonym of Eucephalus elegans Nutt..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 41867100-B18B-4A9C-A6FD-2E08F0DD071B) 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:289872-2.
This name was in version 1 of The Plant List, record gcc-24917, and has not been changed.