Cephalocereus fulviceps

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Cephalocereus fulviceps

Cephalocereus fulviceps (F.A.C.Weber ex K.Schum.) H.E.Moore in Baileya 19: 165. 1975 sec. Tapia & al. 2017
  • Pilocereus fulviceps F.A.C.Weber ex K.Schum., Gesamtbeschr. Kakt.: 176. 1897 syn. sec. Tapia & al. 2017
  • Cereus fulviceps (F.A.C.Weber) A.Berger in Rep. (Annual) Missouri Bot. Gard. 16: 64. 1905 syn. sec. Kew WCVP (2019)
  • Mitrocereus fulviceps (F.A.C.Weber ex K.Schum.) Backeb. ex Bravo in Anales Inst. Biol. Univ. Nac. Mexico 24: 232. 1954 syn. sec. Tapia & al. 2017
  • Pseudomitrocereus fulviceps (F.A.C.Weber ex K.Schum.) Bravo & Buxb. in Bot. Stud. 12: 99. 1961 syn. sec. Tapia & al. 2017
  • Pachycereus fulviceps (F.A.C.Weber ex K.Schum.) D.R.Hunt in Bradleya 9: 89. 1991 syn. sec. Tapia & al. 2017
  • Carnegiea fulviceps (F.A.C.Weber ex K.Schum.) P.V.Heath in Calyx 2(3): 108. 1992 syn. sec. Tapia & al. 2017
    • Type: Mexico. Puebla, Tehuacan, F.A.C. Weber s.n. (not located)
    • Neotype (designated by Tapia, H.J., Bárcenas-Argüello, M.L., Terrazas, T. & Arias, S. 2017: 111): Mexico. Puebla: Zapotitlán Salinas, 11 km sobre la terracería a San Luis Atolotitlán, 1800 m, 8 Aug 1990, S. Arias 863 (MEXU 1302119, isoneotypes, MEXU 1301778, 1301777)
  • 1. Tapia, H.J., Bárcenas-Argüello, M.L., Terrazas, T. & Arias, S. 2017: Phylogeny and circumscription of Cephalocereus (Cactaceae) based on molecular and morphological evidence. – Systematic Botany 42(4): 709-723
  • =Pilocereus chrysomallus Lem., Fl. Serres Jard. Eur. 3: t. 242. 1847 syn. sec. Arias & Terrazas 2009
  • Cereus chrysomallus (Lem.) Lem., Monogr. Cact.: 276. 1853 syn. sec. Arias & Terrazas 2009
  • Cephalocereus chrysomallus (Lem.) K.Schum. in Engler & Prantl, Nat. Pflanzenfam. 3(6a): 182. 1894 syn. sec. Arias & Terrazas 2009
  • Pachycereus chrysomallus (Lem.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 421. 1909 syn. sec. Arias & Terrazas 2009
  • Mitrocereus chrysomallus (Lem.) Backeb. in Jahrb. Deutsch. Kakteen-Ges. 1941: 48. 1942 syn. sec. Arias & Terrazas 2009
  • Backebergia chrysomallus (Lem.) Bravo in Anales Inst. Biol. Univ. Nac. Mexico 24: 231. 1954 syn. sec. Arias & Terrazas 2009


Pseudomitrocereus fulviceps was previously included in Pachycereus or Cephalocereus, later elevated to generic rank as Mitrocereus (Backeberg 1942) and later Pseudomitrocereus (Bravo & Buxbaum, in Buxbaum 1961). Arias & al. (2003) found P. fulviceps to be unrelated to Pachycereus and instead as sister to a clade of Cephalocereus and Neobuxbaumia. Therefore, Pseudomitrocereus was previously reinstated by Arias & al. (2012). Pseudomitrocereus is characterized by having distinct fertile stem tips (on old primary and secondary branches), flowers completely covered with trichomes, and thick axial tissue (pericarpel and receptacle; Buxbaum 1961). Its inclusion in Carnegiea and Pachycereus was supported by non-informative attributes (e.g., growth form), shared by other members of Pachycereinae (or Echinocereinae sensu Nyffeler & Eggli 2010). However, it is part of the clade "Cephalocereus" according to Arias & al. (2003), composed by Cephalocereus, Neobuxbaumia, and Pseudomitrocereus. The species of this clade share the presence of prismatic crystals in epidermis, inner stamens and nectarial chamber, while the fruit is dehiscent and the pulp is white (Arias & Terrazas 2006).Mitrocereus was based on the name Pilocereus chrysomallus Lem. as type species, but this name represents another species included in the synonymy of Pachycereus militaris (Audot) D. R. Hunt. Consequently, Buxbaum and Bravo (Buxbaum 1961) proposed the name Pseudomitrocereus, with P. fulviceps as the nomenclatural type.A


A. 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