This name is a synonym of Oxyanthus speciosus subsp. stenocarpus (K.Schum.) Bridson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 144997) with original publication details: Kew Bull. 34: 114 1979.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:890447-1.
This name was in version 1 of The Plant List, record kew-144997, and has not been changed.