External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:751804-1
- Publication
- Flora der deutschen Schutzgebiete in der Südsee
- Collation
- 580
- Date of Publication
- 1901 publ. Nov 1900
- Family as entered in IPNI
- Rubiaceae