Gymnocalycium erinaceum
Gymnocalycium erinaceum in Succulenta (Netherlands) 64(3): 66. 1985 sec. Charles 20091
- =Gymnocalycium erinaceum var. paucisquamosum in Gymnos 11(21): 14. 1994 syn. sec. Kew WCVP (2019)2
- =Gymnocalycium papschii in Gymnocalycium 14: 407. 2001 syn. sec. Metzing 20215
- ≡Gymnocalycium bruchii var. papschii in Cactaceae Syst. Init. 25: 116. 2015 syn. sec. Metzing 20215
- 5. Metzing, D. 2021: Revisions of Frailea, Gymnocalycium and various other genera. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208
- =Gymnocalycium gaponii subsp. geyeri in Gymnocalycium 21: 752. 2008 syn. sec. Charles 20096
- =Gymnocalycium pinalii in Schütziana 7: 4. 2016 syn. sec. Metzing 20217
- 7. Metzing, D. 2021: Revisions of Frailea, Gymnocalycium and various other genera. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208
- =Gymnocalycium gaponii subsp. macrocarpum in Gymnocalycium 32: 1306. 2019 syn. sec. Metzing 20218
- 8. Metzing, D. 2021: Revisions of Frailea, Gymnocalycium and various other genera. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. http://doi.org/10.3372/wi.51.51208