Comments and References:

TROPICOS (Nov 23, 2012) Name verified on 23 November 2012 in: Tropicos.org. Missouri Botanical Garden, 2008 - 4344 Shaw Boulevard, Saint Louis, Missouri 63110, U.S.A. on line at: http://www.tropicos.org/

FNA - Pachycereus Gibson AC. 2004. Pachycereus (A. Berger) Britton & Rose. In Flora of North America Editorial Committee (Eds.) Flora of North America North of Mexico, Vol. 4: Magnoliophyta: Caryophyllidae, Part 1. New York and Oxford. On-line version.

Hernandez-Ledesma P et al. 2015, doi:10.3372/wi.45.45301 Hernandez-Ledesma P, Berendsohn WG, Borsch T, Von Mering S, Akhani H, Arias S, Castaneda-Noa I, Eggli U, Eriksson R, Flores- Olvera H, Fuentes-Bazan S, Kadereit G, Klak C, Korotkova N, Nyffeler R, Ocampo G, Ochoterena H, Oxelman B, Rabeler RK, Sanchez A, Schlumpberger BO & Uotila P. 2015. A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. Willdenowia, 45(3):281-383.

Korotkova N et al. 2010, doi:10.3372/wi.40.40201 Korotkova N, Zabel L, Quandt D and Barthlott W. 2010. A phylogenetic analysis of Pfeiffera and the reinstatement of Lymanbensonia as an independently evolved lineage of epiphytic Cactaceae within a new tribe Lymanbensonieae. Willdenowia 40(2): 151-172.

Arias S & Terrazas T 2009, doi:10.1600/036364409787602384 Arias S & Terrazas T. 2009. Taxonomic revision of Pachycereus (Cactaceae). Systematic Botany 34(1):68-83. DOI: http://dx.doi.org/10.1600/036364409787602384

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Reference: How to cite this resource - Schoch CL, et al. NCBI Taxonomy: a comprehensive update on curation, resources and tools. Database (Oxford). 2020: baaa062. PubMed: 32761142 PMC: PMC7408187.