⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2711210, with some changes.
This name is a synonym of Siphonostema costatum .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Gen. Pl. 2: 570 1876.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:858250-1
.