Airampoa Frič, Akklim. Versuchs-Gart.: 1. 1933 sec. Doweld 2002



Phylogenetics. — The genus has not been adequately studied and only three species have been included in molecular phylogenetic analyses. Bárcenas & al. (2011) sampled Tunilla erectoclada (Backeb.) D.R.Hunt & Iliff and found it resolved outside the core Opuntia clade. Griffith and Porter (2009) sampled T. corrugata (Gillies ex Loudon) D.R.Hunt & Iliff and T. longispina (so such name appears to exist) and found them well supported in a clade sister to accessions of Maihueniopsis ovata (Pfeiff.) F.Ritter that were misidentified – and are currently labeled as T. corrugata (see – and Miqueliopuntia miquelii (Monv.) F.Ritter. Majure & al. (2012) sampled part of the same accessions of Griffith & Porter (2009) plus others of T. corrugata, and found it again supported out of Opuntia s.str.. Köhler & al. (2020), using chloroplast genome sequences, resolved T. corrugata as sister to Salmonopuntia P.V.Heath + Miqueliopuntia Frič ex F.Ritter. Majure et al. (in prep. 2021), sampling four species of Tunilla, strongly supported them in a clade sister to Miqueliopuntia. Further molecular studies, including more Airampoa species, must be conducted to assert its monophyly and species delimitation.A Nomenclature.— The generic name Tunilla has been used in the literature until recently. It was published by Hunt and Iliff (2000) to replace the untypified earlier name Airampoa Frič. That step has to be regarded as superfluous, because Airampoa Frič was validly published with a brief German description presented in two rare trade catalogues (Frič 1929; Frič 1933). This satisfied all the rules of valid publication of a genus name; no Latin diagnosis was required prior to 1935.
Later, a Frič illustration and specimens in the Frič herbarium currently housed at PR (Guiggi 2007, cf. Figs 1, 2, 3) could further clarify the concept of Frič’s genus Airampoa. Doweld (2002) provided a neotype for Airampoa aurata based on Frič’s material in PR as well as the necessary combinations and typifications for 16 species he included in the genus.B
A. Köhler, M. 2021: Revisions of Airampoa, Brasiliopuntia, Opuntia, Salmonopuntia, Tacinga. – In: Korotkova N. & al., Cactaceae at – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51(2): 250-270, B. Korotkova, N. 2021: Revisions of Deamia, Disocactus, Epiphyllum, Hatiora, Kimnachia, Lepismium, Leuenbergeria, Lymanbensonia, Pereskia, Pfeiffera, Pseudorhipsalis, Rhipsalidopsis, Rhipsalis, Schlumbergera, Selenicereus, Strophocactus, Weberocereus, and various other names – In: Korotkova N. & al., Cactaceae at – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51(2): 250-270