Mammillaria johnstonii var. typica R.T.Craig
, Mammill. Handb. 99 (1945).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:151137-2
- Species Name
- Mammillaria johnstonii Orcutt, Cactography 7 (1926).
- Publication
- Mammillaria Handbook
- Collation
- 99
- Family as entered in IPNI
- Cactaceae