Synonyms

• Basionym
  • Cephalocereus zehntneri Britton & Rose, Cactaceae 2: 35 (1920).

• Homotypic
  • Cereus zehntneri (Britton & Rose) Luetzelb., Estud. Bot. Nordeste Braz. (Insp. Fed. Obras Secc. Publ. 57) 3: 111 (1923).
  • Pilocereus gounellei var. zehntneri (Britton & Rose) Backeb., Kaktus-ABC [Backeb. & Knuth] 331 (1936).
  • Pilosocereus gounellei var. zehntneri (Britton & Rose) Byles & G.D.Rowley, Cact. Succ. J. Gr. Brit. 19: 67 (1957).
  • Pseudopilocereus zehntneri (Britton & Rose) P.V.Heath, Calyx 4(4): 141 (1994), comb. inval.
  • Pilosocereus gounellei subsp. zehntneri (Britton & Rose) Zappi, Pilosocereus (Cactac.): gen. Brazil (Succ. Pl. Res., 3) 43 (1994).
• Heterotypic
  • Pilosocereus braunii Esteves, Kakteen And. Sukk. 40: 11(–13), figs. (1989).
  • Pilosocereus superfloccosus (Buining & Brederoo) F.Ritter, Kakteen Südamerika 1: 84 (1979).
  • Pseudopilocereus superfloccosus Buining & Brederoo, Cact. Succ. J. (Los Angeles) 46: 60, figs. (1974).

Primary references

• Lavor, P., Versieux, L.M. & Calvente, A. 2020. Phylogenetic Relationships of Pilosocereus (Cactaceae) and Taxonomic Implications. PlantNow 1(2): 52–70. ResearchGate. PDF Reference page. 

Additional references

• Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Reference page. 

Links

• Korotkova, N. et al. 2021. Xiquexique gounellei subsp. zehntneri in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Dec 03. Reference page. 
• Govaerts, R. et al. 2021. Xiquexique gounellei subsp. zehntneri in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Dec 03. Reference page. 
• International Plant Names Index. 2021. Xiquexique gounellei subsp. zehntneri. Published online. Accessed: Dec 03 2021.
• Tropicos.org 2021. Xiquexique gounellei subsp. zehntneri. Missouri Botanical Garden. Published online. Accessed: 03 Dec 2021.
• Hassler, M. 2021. Xiquexique gounellei subsp. zehntneri. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Dec 03. Reference page.