Mammillaria nigricans Pfeiff.
, Abbild. Beschr. Cact. 2. I. 23.
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:134890-1
- Publication
- Abbildungen und Beschreibung bluhender Cacteen
- Collation
- 2. I. 23
- Family as entered in IPNI
- Cactaceae