This name is a synonym of Fraxinus angustifolia subsp. oxycarpa (Willd.) Franco & Rocha Afonso.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 369728) with original publication details: Novosti Sist. Vyssh. Rast. 36: 226 2004.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77064890-1.
This name was in version 1 of The Plant List, record kew-369728.