External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77247539-1
- Publication
- Philippine Journal of Science. Manila
- Collation
- 17: 480
- Date of Publication
- (1920 publ. 1921)
- Family as entered in IPNI
- Rubiaceae