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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Echinocereeae
Genus: Deamia
Species: D. chontalensis – D. montalvoae – D. testudo

Deamia Britton & Rose, Cactaceae 2: 212. (1920)

Type species: Deamia testudo (Karw. ex Zucc.) Britton & Rose

Note: Reinstated by Korotkova et al. (2017), who found Strophocactus testudo (≡ Deamia testudo (Karw.) Britton & Rose, the nomenclatural type of Deamia) and S. chontalensis to form a highly-supported clade (1 PP, 98% MLBS, 99% JK), as sister to the subtribe Pachycereinae, and not closely related to the type species of Strophocactus. (Korotkova et al., 2021)

Britton, N.L. & Rose, J.N. 1920. The (Britton & Rose) Cactaceae. 2: 212.
Korotkova, N., Borsch, T.H. & Arias, S., 2017. A phylogenetic framework for the Hylocereeae (Cactaceae) and implications for the circumscription of the genera. Phytotaxa 327(1): 1-46. DOI: 10.11646/phytotaxa.327.1.1 Paywall ResearchGate Reference page.
Korotkova, N. et al. 2021. Deamia in Cactaceae at A global synthesis of species diversity in the angiosperm order Caryophyllales. Published on the internet. Accessed: 2021 Nov. 24. Reference page.
International Plant Names Index. 2021. Deamia. Published online. Accessed: Nov. 26 2021.

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