This name is a synonym of Cyathea serratifolia Baker.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26603048) with original publication details: J. Linn. Soc., Bot. 25: 349 1890.
This name was in version 1 of The Plant List, record tro-26603048, and has not been changed.