This name is a synonym of Cynorkis lilacina var. laxiflora (Schltr.) H.Perrier.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 53706) with original publication details: Repert. Spec. Nov. Regni Veg. Beih. 33: 67 1924.
This name was in version 1 of The Plant List, record kew-53706, and has not been changed.