External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77114-1
- Publication
- Contributions from the United States National Herbarium. Smithsonian Institution
- Collation
- xvi. 159 (1913).
- Family as entered in IPNI
- Apocynaceae
Original Data
- Remarks
- U.S.A. (N. Mexico)