External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:35361-1
- Publication
- Plantas Hartwegianas imprimis Mexicanas . . . Londini
- Collation
- 84
- Date of Publication
- Apr 1841
- Family as entered in IPNI
- Rubiaceae