This name is a synonym of Huperzia megastachya (Baker) Tardieu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26601866) with original publication details: J. Linn. Soc., Bot. 21: 454 1885.
This name was in version 1 of The Plant List, record tro-26601866, and has not been changed.