This name is a synonym of Calycolpus alternifolius (Gleason) Landrum.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 132293) with original publication details: Brittonia 3: 173 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:281132-2.
This name was in version 1 of The Plant List, record kew-132293, and has not been changed.