Mammillaria hahniana

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Mammillaria
Subgenus: M. subg. Mammillaria
Sectio: M. sect. Mammillaria
Series: M. ser. Leucocephalae
Species: Mammillaria hahniana
Name

Mammillaria hahniana Werderm., Monatsschr. Deutsch. Kakteen-Ges. 1: 77, fig (1929).
Note

The specific epithet honors the German cactus connoisseur and collector from Berlin-Lichtenfelde Adolf Hahn († 1954).
Synonyms

Neomammillaria hahniana (Werderm.) Y.Itô, Cactaceae: 572. 1981 syn. sec. Korotkova 2021
Mammillaria hahniana subsp. hahniana syn. sec. ???
Neomammillaria mendeliana Bravo in Anales Inst. Biol. Univ. Nac. Mexico 2: 195. 1931 syn. sec. Hernández & Gómez-Hinostrosa 2015
Mammillaria mendeliana (Bravo) Werderm. in Backeberg, Neue Kakteen: 100. 1931 syn. sec. Hunt 2016
Mammillaria hahniana subsp. mendeliana (Bravo) D.R.Hunt, Mammillaria Postscripts 6: 10. 1997 syn. sec. Hunt 2016
Mammillaria saetigera Boed. & Tiegel, Mammillarien-Vergleichs-Schluessel: 49. 1933 syn. sec. Hunt 2016
Neomammillaria saetigera (Boed. & Tiegel) Y.Itô, Cactaceae: 578. 1981 syn. sec. Korotkova 2021
Mammillaria woodsii R.T.Craig in Cact. Succ. J. (Los Angeles) 15: 33. 1943 syn. sec. Hernández & Gómez-Hinostrosa 2015
Neomammillaria woodsii (R.T.Craig) Y.Itô, Cactaceae: 623. 1981 syn. sec. Korotkova 2021
Mammillaria hahniana subsp. woodsii (R.T.Craig) D.R.Hunt, Mammillaria Postscripts 6: 10. 1997 syn. sec. Hernández & Gómez-Hinostrosa 2015
Mammillaria saetigera subsp. woodsii (R.T.Craig) Rogoz. & Plein in Mitt. Arbeitskreises Mammillarienfr. 26: 110. 2002 syn. sec. Kew WCVP (2019)
Mammillaria bravoae R.T.Craig, Mammill. Handb.: 112. 1945 syn. sec. Hernández & Gómez-Hinostrosa 2015
Neomammillaria bravoae (R.T.Craig) Y.Itô, Cactaceae: 576. 1981 syn. sec. Korotkova 2021
Mammillaria hahniana subsp. bravoae (R.T.Craig) D.R.Hunt, Mammillaria Postscripts 6: 10. 1997 syn. sec. Hernández & Gómez-Hinostrosa 2015
Mammillaria hahniana var. werdermanniana F.Schmoll ex R.T.Craig, Mammill. Handb.: 112. 1945 syn. sec. Kew WCVP (2019)
Neomammillaria hahniana var. werdermanniana (F.Schmoll ex R.T.Craig) Y.Itô, Cactaceae: 572. 1981, nom. inval., syn. sec. Kew WCVP (2019)
Mammillaria saetigera var. quadricentralis R.T.Craig, Mammill. Handb.: 83. 1945 syn. sec. Kew WCVP (2019)

Distribution
Native distribution areas:

Continental: Northern America
Regional: Mexico
Mexico Northeast, Mexico Southwest

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Werdermann, E. (1929) Monatsschr. Deutsch. Kakteen-Ges. 1: 77, fig.

Additional references

Villaseñor, J.L. 2016. Checklist of the native vascular plants of Mexico. Revista Mexicana de Biodiversidad 87: 559–902. DOI: 10.1016/j.rmb.2016.06.017 Online PDF Reference page.
Hernández, H.M. & Gómez-Hinostrosa, C. (2015). Mapping the cacti of Mexico part II. Mammillaria Succulent Plant Research 9: 1-189.
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 Open access Reference page.

Links

Korotkova, N. et al. 2021. Mammillaria hahniana in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov 19. Reference page.
Govaerts, R. et al. 2021. Mammillaria hahniana in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Mar 17. Reference page.
International Plant Names Index. 2021. Mammillaria hahniana. Published online. Accessed: Mar 17 2021.
Tropicos.org 2021. Mammillaria hahniana. Missouri Botanical Garden. Published online. Accessed: 17 Mar 2021.
Hassler, M. 2021. Mammillaria hahniana. 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 Mar 17. Reference page.
LLIFLE - Encyclopedia of living forms 2013-2015. Mammillaria hahniana in LLIFLE. Published on internet. Accessed: 2015 Apr 11.

Vernacular names
español: Viejita
русский: Маммиллярия Гана
svenska: Skäggvårtkaktus

Mammillaria hahniana, the old lady cactus, is a species of flowering plant in the family Cactaceae, native to central Mexico. It grows to 25 cm (10 in) tall by 50 cm (20 in) broad. The solitary spherical stems, 12 cm in diameter, are covered in white down and white spines. Reddish purple flowers are borne in spring and summer, sometimes forming a complete ring around the apex of the plant.[2]

Its status is listed as "Near Threatened" by the IUCN Red List.[1]
Cultivation

Mammillaria hahniana is one of several Mammillaria species to be cultivated. In temperate regions it must be grown under glass with heat. However, some growers report that it is quite hardy down to −5 °C (23 °F) or even −10 °C (14 °F). Like all cacti it must be kept dry in winter, and fed and watered during the active growth cycle in summer. Increasing quite readily and flowering at a relatively early age, it is a suitable subject for domestic cultivation.[3] It has gained the Royal Horticultural Society's Award of Garden Merit.[4][5]
References

Bárcenas Luna, R.; Gómez-Hinostrosa, C.; Guadalupe Martínez, J.; Sánchez , E. (2017). "Mammillaria hahniana". IUCN Red List of Threatened Species. 2017: e.T151925A121513859. doi:10.2305/IUCN.UK.2017-3.RLTS.T151925A121513859.en. Retrieved 12 November 2021.
RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
"Mammillaria hahniana Werd". Encyclopedia of Cacti. Retrieved 3 April 2018.
[Mammillaria hahniana "RHS Plant Selector - Mammillaria hahniana"]. Retrieved 3 January 2021. {{cite web}}: Check |url= value (help)
"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 63. Retrieved 3 April 2018.