External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:169723-2
- Publication
- Bulletin of Miscellaneous Information, Royal Gardens, Kew. Kew
- Collation
- 1938(7): 298
- Date of Publication
- 7 Oct 1938
- Family as entered in IPNI
- Cactaceae