External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:171146-2
- Publication
- Contributions from the United States National Herbarium. Smithsonian Institution
- Collation
- 16(7): 240, tt. 70-71
- Date of Publication
- 10 Aor 1913
- Family as entered in IPNI
- Cactaceae
Type Information
- Collector Team
- W.R. Maxon (no. 8510
- Locality
- EI Rancho
- Collection Date
- 4 Apr 1905
- Type Herbaria
- holotype US
- Distribution Of Types
- Guatemala (Central America, Southern America)