Tacinga
Tacinga, Cactaceae 1: 39. 1919 sec. Hunt 20161 wfo-4000037411
Taxon standing
Category B. The genus is monophyletic based on phylogenetic studies that support the clade based on a sufficiently dense or even complete sampling, or support a monotypic genus as a distinct lineage, but do not provide a new taxonomic treatment at the species level. In many cases, older classical taxonomic synopses or a monographic treatment exist for these genera providing a reliable assessment of the species included.
Bibliography
A. Griffith, M.P. & Porter, J.M. 2009: Phylogeny of Opuntioideae (Cactaceae). – International Journal of Plant Sciences 170(1): 107-116. https://doi.org/10.1086/593048
B. Köhler, M. 2021: Revisions of Airampoa, Brasiliopuntia, Opuntia, Salmonopuntia, Tacinga, Xiquexique. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. https://doi.org/10.3372/wi.51.51208
C. Köhler, M., Reginato, M., Souza-Chies, T.T. & Majure, L.C. 2020: Insights into chloroplast genome evolution across Opuntioideae (Cactaceae) reveals robust yet sometimes conflicting phylogenetic topologies. – Frontiers in Plant Science 11. https://doi.org/10.3389/fpls.2020.00729
D. Majure, L.C., Puente, R., Griffith, M.P., Judd, W.S., Soltis, P.S. & Soltis, D.E. 2012: Phylogeny of Opuntia s.s. (Cactaceae): Clade delineation, geographic origins, and reticulate evolution. – American Journal of Botany 99(5): 847-864. https://doi.org/10.3732/ajb.1100375