This name is a synonym of Pycnostachys coerulea Hook..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 171196) with original publication details: Pflanzenw. Ost-Afrikas C: 345 1895.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:455297-1.
This name was in version 1 of The Plant List, record kew-171196, and has not been changed.