Frailea pygmaea var. phaeodisca (Speg.) Y.Itô
, Cacti (Borg) 1952, 70 (1952).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:105567-2
- Publication
- Cacti. A Gardener's Handbook for Their Identification and Cultivation, by Professor J. Borg. London
- Collation
- 1952, 70
- Family as entered in IPNI
- Cactaceae