Maihueniopsis

Primary tabs

Maihueniopsis

Maihueniopsis Speg. in Anales Soc. Ci. Argent. 99: 86. 1925 sec. Hunt 20161 wfo-4000022894
      Nametype: Maihueniopsis molfinoi Speg.
  • 1. Hunt, D.R. 2016: CITES Cactaceae Checklist. 3rd edition. – published by the author
  • =Puna R.Kiesling in Hickenia 1: 289. 1982 syn. sec. Hunt 20062 wfo-4000032178
  • Maihueniopsis subg. Puna (R.Kiesling) Stuppy in Succ. Pl. Res. 6: 50. 2002 syn. sec. Hunt 20062 wfo-3500004047
    • Nametypes: Opuntia clavarioides hort. Berol. ex Pfeiff.; Puna clavarioides (Otto ex Pfeiff.) R.Kiesling
  • 2. Hunt, D.R. 2006: The New Cactus Lexicon. – Milborne Port: dh books
  • Clavarioidia Frič & Schelle ex Kreuz., Verzeichnis Amer. Sukk. Rev. Syst. Kakteen: 41. 1935, nom. inval. syn. sec. ??? wfo-4000008509

Notes

Griffith & Porter (2009) found Maihueniopsis polyphyletic based on a combined analysis of nuclear ITS and plastid trnL-F, but Ritz & al. (2012) found a monophyletic Maihueniopsis to be strongly supported by nuclear phyC and plastid trnK/matK. The reasons for these deviating results are discussed in detail by Ritz & al. (2012) and appear to result from peculiarities in the evolution of the ITS sequences used by Griffith & Porter that seem unsuitable to adequately represent phylogenetic relationships.A,B,C

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. Hernández-Ledesma, P., Berendsohn, W. G., Borsch, T., von Mering, S., Akhani, H., Arias, S., Castañeda-Noa, I., Eggli, U., Eriksson, R., Flores-Olvera, H., Fuentes-Bazán, S., Kadereit, G., Klak, C., Korotkova, N., Nyffeler, R., Ocampo, G. & Ochoterena, H. 2015: A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. – Willdenowia 45(3): 281-383. https://doi.org/10.3372/wi.45.45301
C. Ritz, C.M., Reiker, J., Charles, G., Hoxey, P., Hunt, D.R., Lowry, M., Stuppy, W. & Taylor, N. P. 2012: Molecular phylogeny and character evolution in terete-stemmed Andean opuntias (Cactaceae-Opuntioideae). – Molecular Phylogenetics and Evolution 65(2): 668-681. https://doi.org/10.1016/j.ympev.2012.07.027