⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-338640, with some changes.

Siphonia ridleyana O.F.Cook is a synonym of Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg.

This name is a synonym of Hevea brasiliensis (Willd. ex A.Juss.) Müll.Arg..

The record derives from WCSP which reports it as a synonym (record 338640) with original publication details: J. Wash. Acad. Sci. 31: 46 1941.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:356414-1.