This name is a synonym of Columellia oblonga subsp. sericea (Kunth) Brizicky.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 46367) with original publication details: Annuaire Conserv. Jard. Bot. Genève 20: 367 1919.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:169714-1.
This name was in version 1 of The Plant List, record kew-46367, and has not been changed.