This name is a synonym of Tibouchina confertiflora (Naudin) Cogn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50135392) with original publication details: Trans. Linn. Soc. London 28(1): 46 1871.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:574784-1.
This name was in version 1 of The Plant List, record tro-50135392, and has not been changed.