Turbinicarpus dickisoniae

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Turbinicarpus dickisoniae

Turbinicarpus dickisoniae (Glass & R.A.Foster) Glass & A.Hofer, Guía Identific. Cactá. Amenazadas México: Tu/di. 1997 sec. Hunt 2006
  • Turbinicarpus schmiedickeanus var. dickisoniae Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 54(2): 74. 1982 syn. sec. Hunt 2006
  • Neolloydia schmiedickeana var. dickisoniae (Glass & R.A.Foster) E.F.Anderson in Bradleya 4: 20. 1986 syn. sec. Kew WCVP (2019)
  • Turbinicarpus schmiedickeanus subsp. dickisoniae (Glass & R.A.Foster) N.P.Taylor in Cactaceae Consensus Init. 5: 14. 1998 syn. sec. Vázquez-Sánchez & al. 2013
  • Pediocactus schmiedickeanus var. dickisoniae (Glass & R.A.Foster) Halda in Acta Mus. Richnov., Sect. Nat., 5(1): 20. 1998 syn. sec. IPNI 2000+
  • Turbinicarpus gracilis subsp. dickisoniae (Glass & R.A.Foster) Panar. in Piante Grasse 18(3): 120. 1999 syn. sec. Kew WCVP (2019)
    • Holotype: Mexico, Nuevo León: Near Aramberri, 1981, S. Dickison 81-002 (POM)


Turbinicarpus dickisoniae has previously been classified as a subspecies of T. schmiedickeanus (Hunt 2006). The proposal of Lüthy & Moser (2002) to recognize this taxon as a distinct species is followed. Morphologically, the radial spines are persistent during the development of the individuals, while, in the other members of the T. schmiedickeanus complex, there are only present central spines. A micromorphological analysis of the spines shows that the walls of the spines of T. dickisoniae are entire, while the walls of the spines in T. schmiedickeanus are fissured (Mosco 2009). This is reflected in the appearance of the spines, rigid in T. dickisoniae and papiraceae in T. schmiedickeanus, which is consistent with the observations of Lüthy & Moser (2002). There are notable differences in terms of flower dimensions (ca. 20 mm long in T. dickisoniae and ca. 27 mm in T. schmiedickeanus), as well as in color (white with slight yellow tones in T. dickisoniae, while in T. schmiedickeanus they are white with a stripe in intense magenta tones).A


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