This name is a synonym of Nephelea woodwardioides var. hieronymi (Brause) Gastony.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26621326) with original publication details: Symb. Antill. 7: 152 1911.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:73232-2.
This name was in version 1 of The Plant List, record tro-26621326.