This name is a synonym of Spergularia bocconei (Scheele) Asch. & Graebn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 6301076) with original publication details: Mem. Soc. Esp. Hist. Nat. 2(9): 496 1904.
This name was in version 1 of The Plant List, record tro-6301076.