This name is a synonym of Keckiella rothrockii var. jacintensis (Abrams) N.H. Holmgren.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50114908) with original publication details: Bull. Torrey Bot. Club 33: 445 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:310123-2.
This name was in version 1 of The Plant List, record tro-50114908.