This name is a synonym of Ammannia auriculata Willd..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Bol. Soc. Brot. II, 52: 2 1978.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:886588-1.
This name was in version 1 of The Plant List, record kew-2633660.