This name is a synonym of Pappobolus hypargyreus (S.F.Blake) Panero.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F50D613E-643D-4B5C-913B-286F91BEE42C) with original publication details: 421 1922.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:300928-2.
This name was in version 1 of The Plant List, record gcc-21864.