This name is a synonym of Exacum affine Balf.f. ex Regel.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Proc. Roy. Soc. Edinburgh 12: 80 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:367494-1.
This name was in version 1 of The Plant List, record kew-2806044, and has not been changed.