This name is a synonym of Aa leucantha (Rchb.f.) Schltr..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 25) with original publication details: Repert. Spec. Nov. Regni Veg. Beih. 7: 499 1920.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:300768-2.
This name was in version 1 of The Plant List, record kew-25, and has not been changed.