This name is a synonym of Riccardia papulosa (Stephani) E. A. Br..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35200632) with original publication details: Hedwigia 32: 25 1893.
This name record (from Tropicos) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Aneura papulosa in version 1 of The Plant List.