This name is a synonym of Agathis robusta subsp. nesophila Whitmore.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 4545) with original publication details: in Fl. Males. 10(3): 435 1988.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:935585-1.
This name was in version 1 of The Plant List, record kew-4545.