Gymnocalycium horstii subsp. buenekeri
Gymnocalycium horstii subsp. buenekeri in Schumannia 3: 188. 2002 sec. Charles 20091
- ≡Gymnocalycium buenekeri in Cact. Succ. J. Gr. Brit. 40(4): 97. 1978 syn. sec. Hunt 20162
- –Gymnocalycium horstii var. buenekeri in Kakteen And. Sukk. 21: 162–165. 1970, nom. inval., syn. sec. Metzing 20213
- 1. Charles, G. 2009: Gymnocalycium in habitat and culture. – Stamford: Published by the author, 2. Hunt, D.R. 2016: CITES Cactaceae Checklist. 3rd edition. – published by the author, 3. 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