This name is a synonym of Zanthoxylum riedelianum Engl..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 28101720) with original publication details: Phytologia 18: 464, f. 13 1969.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:270797-2.
This name was in version 1 of The Plant List, record tro-28101720.