This name is a synonym of Pappobolus lanatus (Heiser) Panero.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 713E8FB1-0F2D-47FC-92E7-6ACC8AE19555) with original publication details: Brittonia 8: 291 291 1957.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:308686-2.
This name was in version 1 of The Plant List, record gcc-79142.