This name is a synonym of Bauhinia forficata subsp. pruinosa (Vogel) Fortunato & Wunderlin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 13000806) with original publication details: Repert. Spec. Nov. Regni Veg. 16: 157 1919.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30055-2.
This name was in version 1 of The Plant List, record tro-13000806, and has not been changed.