Cumulopuntia

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Cumulopuntia

Cumulopuntia F.Ritter, Kakteen Südamerika 2: 399. 1980 sec. Hunt 20161 wfo-4000010040
      Nametype: Cumulopuntia ignescens (Vaupel) F.Ritter
  • 1. Hunt, D.R. 2016: CITES Cactaceae Checklist. 3rd edition. – published by the author
  • =Sphaeropuntia Guiggi in Cactology 3 (Suppl. II): 1. 2012 syn. sec. Hunt 20162 wfo-4000042506
  • 2. Hunt, D.R. 2016: CITES Cactaceae Checklist. 3rd edition. – published by the author

Notes

Griffith & Porter (2009) found no support for a monophyletic Cumulopuntia, but it was also not contradicted. Cumulopuntia was then confirmed as monophyletic by Ritz & al. (2012). Cumulopuntia falls in two clades in the molecular phylogeny, one consisting of C. sphaerica (C.F.Först.) E.F.Anderson and related taxa from the W Andean slopes of Chile and Peru, characterized by forming dwarf shrubs with easily detachable stem segments, and another consisting of Cumulopuntia s.str., characterized by growth in often dense cushions, with firmly attached stem segments (Griffith & Porter 2009; Ritz & al. 2012). For the C. sphaerica clade, the generic name Sphaeropuntia was recently published, but its circumscription is not yet fully resolved, and it this thus better treated as synonym for the time being.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