Pterocactus
Pterocactus in Monatsschr. Kakteenk. 7: 6. 1897 sec. Hunt 20161 wfo-4000031929
Content
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