External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77241577-1
- Publication
- Publications of the Field Museum of Natural History. Botanical series. Chicago, IL.
- Collation
- 8: 59
- Date of Publication
- (1930)
- Family as entered in IPNI
- Rubiaceae