This name is a synonym of Sequoiadendron giganteum (Lindl.) J.Buchholz.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 378999) with original publication details: Bonplandia (Hannover) 3: 27 1855.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:30069209-2.
This name was in version 1 of The Plant List, record kew-2484406.