Coryphantha (Engelm.) Lem., Cactées: 32. 1868, nom. cons., sec. Hunt 2006



Phylogenetics: Found as highly polyphyletic by Bárcenas & al. (2011), and as nested in Mammillaria. One core Coryphantha clade was resolved but only weakly supported as monophyletic (0.65 PP from Bayesian Inference). Vázquez-Sánchez & al. (2013) likewise find Coryphantha as polyphyletic, but not nested in Mammillaria, however much fewer species were sampled therein. One maximally supported group was found that also contains Neolloydia matehualensis Backeb., while other Coryphantha species were found close to Echinomastus and Escobaria.
Breslin & al. (2021) resolved three well-supported clades in the Mammilloid clade, these comprising Mammillaria s.s., Cochemiea and Coryphantha. Escobaria was nested within Coryphantha, although more taxon sampling is needed in the clade before completely understanding generic limits in the Coryphantha clade. Breslin et al. (2021) expanded Cochemiea to include Neolloydia, Ortegocactus and other species traditionally recognized as Mammillaria s.l. in that clade. A
A. Majure, L.C. 2021: Revisions of Cochemiea, Consolea, Coryphantha, Cylindropuntia, Cumarinia, Grusonia, Kroenleinia, Leptocereus, Melocactus, Micropuntia, Opuntia. – In: Korotkova N. & al., Cactaceae at – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51(2): 250-270