Stenocereus

Stenocereus (A.Berger) Riccob. in Boll. Reale Orto Bot. Palermo 8: 253. 1909, nom. cons., sec. Hunt 2006

≡Cereus subg. Stenocereus A.Berger in Rep. (Annual) Missouri Bot. Gard. 16: 66. 1905 syn. sec. Hunt 2006

Type: Stenocereus stellatus (Pfeiff.) Riccob.

=Rathbunia Britton & Rose in Contr. U.S. Natl. Herb. 12: 414. 1909 syn. sec. Hunt 2006

Type: Rathbunia sonorensis (Runge ex Schum.) Britton & Rose

=Machaerocereus Britton & Rose, Cactaceae 2: 114. 1920 syn. sec. Hunt 2006

Type: Machaerocereus eruca (K.Brandegee) Britton & Rose

=Neolemaireocereus Backeb. in Cactaceae (Berlin) 1941(2): 76. 1942 syn. sec. Kew WCVP (2019)

Type: Neolemaireocereus stellatus (Pfeiff.) Backeb.

=Ritterocereus Backeb. in Jahrb. Deutsch. Kakteen-Ges. 1941: 76. 1942 syn. sec. Hunt 2006

Type: Ritterocereus standleyi (G.J.Ortega) Backeb.

=Hertrichocereus Backeb. in Cact. Succ. J. (Los Angeles) 22: 153. 1950 syn. sec. Hunt 2006

Type: Hertrichocereus beneckei (Ehrenb.) Backeb.

=Stenocereus subg. Nigellicereus P.V.Heath in Calyx 5(3): 100. 1996 syn. sec. Hunt 2006
≡Nigellicereus (P.V.Heath) P.V.Heath in Calyx 6: 1. 1998 syn. sec. Kew WCVP (2019)

Type: not designated

=×Rittellicereus P.V.Heath in Calyx 6: 1. 1998 syn. sec. Kew WCVP (2019)

=Glandulicereus Guiggi in Cactology 3: 6. 2012 syn. sec. Arias 2021

Type: Glandulicereus thurberi (Engelm.) Guiggi

=Neogriseocereus Guiggi in Cactology 3 (Suppl. IV): 1. 2013 syn. sec. Arias 2021

Type: Neogriseocereus fimbriatus (Lam.) Guiggi

–Griseocactus Guiggi in Cactology 3 (Suppl. I): 1. 2012, nom. inval., syn. sec. Arias 2021

Type: Griseocactus fimbriatus (Lam.) Guiggi

–Griseocereus Guiggi in Cactology 3: 7. 2012, nom. inval., syn. sec. Arias 2021

Type: Griseocereus fimbriatus (Lam.) Guiggi

Content

Acknowledgments

Revised by Salvador Arias

Taxon standing

Category B. The genus is monophyletic based on phylogenetic studies that support the clade based on a sufficiently dense or even complete sampling, or support a monotypic genus as a distinct lineage, but do not provide a new taxonomic treatment at the species level. In many cases, older classical taxonomic synopses or a monographic treatment exist for these genera providing a reliable assessment of the species included.

Notes

Phylogenetics: Stenocereus is a monophyletic genus if S. aragonii and S. eichlamii are excluded. The exclusion of S. dumortieri is still poorly supported, while retention of S. yunckeri is ambiguous; contains at least four clades (Alvarado-Sizzo et al. 2018; Alvarado-Sizzo et al. 2019; Arreola-Nava & Terrazas 2003). Stenocereus is one of the most diverse in Echinocereeae, in stem and flower morphology. Its greatest taxonomic diversity is found in south-central Mexico.A

Bibliography

A. Arias, S. 2021: Revisions of Acanthocereus, Aporocactus, Astrophytum, Bergerocactus, Cephalocereus, Disocactus, Marshallocereus, Nyctocereus, Pachycereus, Peniocereus, Pereskiopsis, Selenicereus, Stenocereus, Strophocactus. – In: Korotkova N. & al., Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family. – Willdenowia 51: 251-270