This name is a synonym of Hylocereus schomburgkii (C.F. Först.) Backeb..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5104011) with original publication details: Handb. Cacteenk. 422 1846.
This name was in version 1 of The Plant List, record tro-5104011.