This name is a synonym of Serapias lingua subsp. duriaei (Rchb. ex Batt.) Soó.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 190649) with original publication details: Bull. Soc. Hist. Nat. Afrique N. 29: 451 1938.
This name was in version 1 of The Plant List, record kew-190649.