This name is a synonym of Kosteletzkya thurberi A. Gray.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50137820) with original publication details: Contr. W. Bot. 12: 4–5 1908.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:133836-2.
This name was in version 1 of The Plant List, record tro-50137820, and has not been changed.