Turbinicarpus saueri

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Turbinicarpus saueri

Turbinicarpus saueri (Boed.) John & Říha in Repert. Pl. Succ. 19(1): 22. 1983 sec. Vázquez-Sánchez & al. 20191 wfo-0001256590
  • Echinocactus saueri Boed. in Z. Sukkulentenk. 3(16): 362–363. 1928 ["1927-1928"] syn. sec. Aquino 20212 wfo-0000660902
  • Neolloydia saueri (Boed.) F.M.Knuth, Kaktus-ABC: 367. 1936 ["1935"] syn. sec. Aquino 20212 wfo-0001286381
  • Thelocactus saueri (Boed.) Borg, Cacti, ed. 1: 281. 1937 syn. sec. Aquino 20212 wfo-0001286383
  • Gymnocactus saueri (Boed.) Backeb. in Cactaceae (Berlin) 1941(2): 59. 1942 syn. sec. Aquino 20212 wfo-0000712333
  • Thelocactus saueri (Boed.) H.P.Kelsey & Dayton, Standard. Pl. Names, ed. 2: 78. 1942 syn. sec. Aquino 20212 wfo-0001434407
  • Pediocactus saueri (Boed.) Halda in Acta Mus. Richnov., Sect. Nat., 5: 18. 1998 syn. sec. Aquino 20212 wfo-0001286382
    • Type: Lectotype: [illustration] “Echinocactus Sauerii Böd. spec. nov. 1928” in Z. Sukkulentenk. 3: 362. 1928 [fide Anderson 1986: 173]
  • 1. Vázquez-Sánchez, Sánchez, D., Terrazas, T., De La Rosa-Tilapa, A. & Arias, S. 2019: Polyphyly of the iconic cactus genus Turbinicarpus (Cactaceae) and its generic circumscription. – Botanical Journal of the Linnean Society 190(4): 405-420. 10.1093/botlinnean/boz027, 2. Aquino, D. 2021: Revisions of Epithelantha, Kadenicarpus, Rapicactus, Turbinicarpus – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270. 10.3372/wi.51.51208, 3. Anderson, E. F. 1986: A revision of the genus Neolloydia B. & R. (Cactaceae). – Bradleya 4: 1-28

Notes

Turbinicarpus saueri comprises eight subspecies included in this taxonomic treatment. According to Lüthy & Moser (2002), these subspecies differ mainly by floral and stem morphology: large stems and flowers with white perianth (T. saueri subsp. ysabelae); small stems and flowers with pale pink perianth (T. saueri subsp. nelissae), stems with numerous spines (T. saueri subsp. knuthianus), and stems with few spines (T. saueri subsp. nieblae). Four of the eight subspecies were included in the phylogenetic analysis of Turbinicarpus, but no close relationship was shown between the subspecies (Vázquez-Sánchez & al. 2019), they were intermixed with other Turbinicarpus species, suggesting they might actually merit species rank. Still, the relevant nodes were unsupported or weakly supported. Therefore, a more comprehensive study phylogenetic / taxonomic study of all eight subspecies would be required to arrive at a better understanding of species-limits in this group. The four subspecies sampled by Vázquez-Sánchez & al. (2019) are here provisionally accepted at species rank.A

Bibliography

A. Aquino, D. 2021: Revisions of Epithelantha, Kadenicarpus, Rapicactus, Turbinicarpus – 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