Gymnocalycium nigriareolatum

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cereeae
Subtribus: Gymnocalyciinae
Genus: Gymnocalycium
Subgenus: G. subg. Scabrosemineum
Sectio: G. sect. Hybopleura
Species:

Gymnocalycium nigriareolatum Backeb., 1934

• Gymnocalycium curvispinum Frič in Möller's Deutsche Gärtn.-Zeitung 44: 170. 1929, nom. nud., syn. sec. Charles 2009
• Gymnocalycium nigriareolatum var. densispinum Backeb. ex H.Till
• Gymnocalycium nigriareolatum var. simoi H.Till

• Hunt, D. (2016). CITES Cactaceae Checklist, ed. 3: 1-174. Royal Botanic Gardens, Kew.
• Backeberg, C., 1934. Blätt. Kakteenf. 5: 8

• Govaerts, R.H.A. 2003. World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. [unavailable for the public] Reference page. 
• Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Reference page. 

• Korotkova, N. et al. 2021. Gymnocalycium nigriareolatum in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Dec 04. Reference page. 
• Govaerts, R. et al. 2021. Gymnocalycium nigriareolatum in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Apr 12. Reference page. 
• International Plant Names Index. 2021. Gymnocalycium nigriareolatum. Published online. Accessed: Apr 12 2021. Reference page.
• Tropicos.org 2021. Gymnocalycium nigriareolatum. Missouri Botanical Garden. Published online. Accessed: 12 Apr 2021. Reference page.

For more multimedia, look at Gymnocalycium nigriareolatum on Wikimedia Commons.