This name is a synonym of Henckelia rotundata (Barnett) D.J.Middleton & Mich.Möller.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Nat. Hist. Bull. Siam Soc. 20: 17 1961.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:378654-1.
This name was in version 1 of The Plant List, record kew-2718628.