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Welcome to the Mammillaria Society

PLEASE NOTE: To join the Society or to renew an existing membership please go to Membership for 2018

 

Here you'll find details about the Society, about membership, and about our Journal and Annual Meetings and Shows. We try to feature a different species of MammillariaCoryphanthaEscobaria, NeolloydiaThelocactus or Turbinicarpus each month, and sometimes these include newly described species.

We hope you will share our delight in this genus of plants, that stretches from Central America and the Caribbean through all of Mexico and deep into the Western States of the USA. New discoveries are being made all the time, and this web site will feature them once described in the appropriate Journal.

Please also visit the Mammillaria Forum to talk with other Mammillaria enthusiasts in the UK and around the world, but do please note that while this is supported by the Society it is not run by us.

You do not need to register to look at our free content. You can see our events for the year, and there is a lot of information in the Plants of the Month section, and details of other useful websites etc. 

Mammillaria Society members who want access to the Members area should contact either Chris Davies or Pete Arthurs, who will then register you and give you access. This Members Only area contains digital versions of our Journals from 2011 onwards which may be downloaded. The provision of access will typically take up to a few days after contacting us. It is unfortunately necessary to do it this way as we have been receiving a lot of false registrations recently and the workload to remove these is much more than registering bona fide Society Members.  Trying to Register will take you straight to the logon page, and so will fail.

If you have any problems, please contact the webmaster for the site.

 

Updates

We appear to have a problem with the top menu on the Home page. To join the Society or to renew an existing membership please go to Membership for 2018

24th May Update - New regulations are shortly to come into effect with regard to the protection of the data that the Society holds about its members. A formal letter is being sent with the May journal to all members, which is reproduced here

Links - containing Cactus Explorer link to Dr David Hunt's Huitzilopochtlia, and the recently revitalised Mammillarias.net.

Please Note: If you don't receive an activation email after registering, do check your spam folders. Note: Most pictures copyright of Chris Davies. Please contact the This email address is being protected from spambots. You need JavaScript enabled to view it.if you wish to use any of these.

Mammillaria sphaerica

 

 

(click on the link to to see the article)

 

December 2014 Mammillaria longimamma
November 2014 Mammillaria baumii baumii-th
September 2014 Mammillaria bertholdii M-bertholdii-th
August 2013 Mammillaria albicans ssp. albicans albicans2 th
July 2013 No Mamm of the Month  
June 2013 Mammillaria compressa ssp. centralifera centralifera th
May 2013 Mammillaria compressa ssp. compressa compressa th
April 2013  Mammillaria thomsonii n.n. 
March 2103 Mammillaria brachtytrichion
Feb 2013 No Mamm of the month  
January 2013 Mammillaria winterae ssp. winterae
December 2012 Mammillaria winterae ssp. aramberri
November 2012 Mammillaria pilispina
Sep & Oct 2012 No Mamm of the month  
Aug 2012 Mammillaria xanthina
July 2012 Mammillaria theresae
Jun 2012 Mammillaria elongata
May 2012 No Mamm of the month  
April 2012  Mammillaria stella-de-tacubaya
March 2012 No Mamm of the month  
February 2012 Mammillaria aureilanata
January 2012 Mammillaria wiesingeri ssp. wiesingeri
December 2011 Mammillaria wiesingeri ssp. apamensis
November 2011 Mammillaria mystax
October  2011 Mammillaria carnea
September 2011 No Mamm of the month  
August 2011 Mammillaria tesopacensis
July 2011 Mammillaria maycobensis
June 2011 Mammillaria standleyi
May 2011 Mammillaria sinforosensis
April 2011 Mammillaria lindsayi
Mar 2011 Mammillaria hernandezii
Feb 2011 Mammillaria crinita (fma. leucantha)
Jan 2011 Mammillaria crinita (tezontle)
Dec 2010 Mammillaria crinita fma (variabilis)
Nov 2010 Mammillaria crinita ssp. wildii  
Oct 2010 Mammillaria crinita ssp. crinita  
Sept 2010 Mammillaria aureiceps

 

August 2010 No Mamm of the month  
July 2010 No Mamm of the month  
June 2010 Mammillaria zephyranthoides  
May 2010 No Mamm of the month  
April 2010 Mammillaria heidiae  
March 2010 Mammillaria wrightii ssp. wilcoxii

 

February 2010 Mammillaria wrightii  
January 2010 Mammillaria insularis  
December 2009 Mammillaria mazatlanensis  
November 2009 Mammillaria grahamii  
October 2009 Mammillaria capensis  
September 2009 Mammillaria blossfeldiana  
August 2009 Mammillaria tetrancistra  
July 2009  Mammillaria polythele (concluded)
June 2009 Mammillaria polythele (continued)
May 2009 No Mamm of the Month  
April 2009 Mammillaria sanchez-mejoradae
March 2009 No Mamm of the Month  
February 2009 Mammillaria polythele
January 2009 Mammillaria guelzowiana
December 2009 No Mamm of the Month.  
November 2008 Mammillaria fertilis (?)
October 2008 Mammillaria hahniana (Part 2)
Sept 2008 Mammillaria hahniana (Part 1)
August 2008 Mammillaria beneckei
July 2008 Mammillaria marksiana
June 2008 Mammillaria luethyi
May 2008 Mammillaria amajacensis
April 2008 Mammillaria boelderliana
Mar 2008 Mammillaria heyderi (Part 2)  img077 th
Feb 2008 Mammillaria heyderi (Part 1)
Jan 2008 Mammillaria roemeri
Dec 2007 Mammillaria lauii and its forms
Nov 2007 Mammillaria eriacantha ssp. velizii
Oct 2007 Mammillaria scheinvariana  schinvar
Sep 2007 Mammillaria vetula ssp lacostei

 

Aug 2007 Mammillaria dioica - new pink flowered form

 dioica

December 2014 Mammillaria longimamma baumii-th
November 2014  
November 2014 Mammillaria baumii baumii-th
September 2014 Mammillaria bertholdii M-bertholdii-th
August 2013 Mammillaria albicans ssp. albicans albicans2 th
July 2013 No Mamm of the Month  
June 2013 Mammillaria compressa ssp. centralifera centralifera th
May 2013 Mammillaria compressa ssp. compressa compressa th
April 2013  Mammillaria thomsonii n.n. 
March 2103 Mammillaria brachtytrichion
Feb 2013 No Mamm of the month  
January 2013 Mammillaria winterae ssp. winterae
December 2012 Mammillaria winterae ssp. aramberri
November 2012 Mammillaria pilispina
Sep & Oct 2012 No Mamm of the month  
Aug 2012 Mammillaria xanthina
July 2012 Mammillaria theresae
Jun 2012 Mammillaria elongata
May 2012 No Mamm of the month  
April 2012  Mammillaria stella-de-tacubaya
March 2012 No Mamm of the month  
February 2012 Mammillaria aureilanata
January 2012 Mammillaria wiesingeri ssp. wiesingeri
December 2011 Mammillaria wiesingeri ssp. apamensis
November 2011 Mammillaria mystax
October  2011 Mammillaria carnea
September 2011 No Mamm of the month  
August 2011 Mammillaria tesopacensis
July 2011 Mammillaria maycobensis
June 2011 Mammillaria standleyi
May 2011 Mammillaria sinforosensis
April 2011 Mammillaria lindsayi
Mar 2011 Mammillaria hernandezii
Feb 2011 Mammillaria crinita (fma. leucantha)
Jan 2011 Mammillaria crinita (tezontle)
Dec 2010 Mammillaria crinita fma (variabilis)
Nov 2010 Mammillaria crinita ssp. wildii  
Oct 2010 Mammillaria crinita ssp. crinita  
Sept 2010 Mammillaria aureiceps

 

August 2010 No Mamm of the month  
July 2010 No Mamm of the month  
June 2010 Mammillaria zephyranthoides  
May 2010 No Mamm of the month  
April 2010 Mammillaria heidiae  
March 2010 Mammillaria wrightii ssp. wilcoxii

 

February 2010 Mammillaria wrightii  
January 2010 Mammillaria insularis  
December 2009 Mammillaria mazatlanensis  
November 2009 Mammillaria grahamii  
October 2009 Mammillaria capensis  
September 2009 Mammillaria blossfeldiana  
August 2009 Mammillaria tetrancistra  
July 2009  Mammillaria polythele (concluded)
June 2009 Mammillaria polythele (continued)
May 2009 No Mamm of the Month  
April 2009 Mammillaria sanchez-mejoradae
March 2009 No Mamm of the Month  
February 2009 Mammillaria polythele
January 2009 Mammillaria guelzowiana
December 2009 No Mamm of the Month.  
November 2008 Mammillaria fertilis (?)
October 2008 Mammillaria hahniana (Part 2)
Sept 2008 Mammillaria hahniana (Part 1)
August 2008 Mammillaria beneckei
July 2008 Mammillaria marksiana
June 2008 Mammillaria luethyi
May 2008 Mammillaria amajacensis
April 2008 Mammillaria boelderliana
Mar 2008 Mammillaria heyderi (Part 2)  img077 th
Feb 2008 Mammillaria heyderi (Part 1)
Jan 2008 Mammillaria roemeri
Dec 2007 Mammillaria lauii and its forms
Nov 2007 Mammillaria eriacantha ssp. velizii
Oct 2007 Mammillaria scheinvariana  schinvar
Sep 2007 Mammillaria vetula ssp lacostei

 

Aug 2007 Mammillaria dioica - new pink flowered form

 dioica

December 2014 Mammillaria longimamma baumii-th
November 2014  
November 2014 Mammillaria baumii baumii-th
September 2014 Mammillaria bertholdii M-bertholdii-th
August 2013 Mammillaria albicans ssp. albicans albicans2 th
July 2013 No Mamm of the Month  
June 2013 Mammillaria compressa ssp. centralifera centralifera th
May 2013 Mammillaria compressa ssp. compressa compressa th
April 2013  Mammillaria thomsonii n.n. 
March 2103 Mammillaria brachtytrichion
Feb 2013 No Mamm of the month  
January 2013 Mammillaria winterae ssp. winterae
December 2012 Mammillaria winterae ssp. aramberri
November 2012 Mammillaria pilispina
Sep & Oct 2012 No Mamm of the month  
Aug 2012 Mammillaria xanthina
July 2012 Mammillaria theresae
Jun 2012 Mammillaria elongata
May 2012 No Mamm of the month  
April 2012  Mammillaria stella-de-tacubaya
March 2012 No Mamm of the month  
February 2012 Mammillaria aureilanata
January 2012 Mammillaria wiesingeri ssp. wiesingeri
December 2011 Mammillaria wiesingeri ssp. apamensis
November 2011 Mammillaria mystax
October  2011 Mammillaria carnea
September 2011 No Mamm of the month  
August 2011 Mammillaria tesopacensis
July 2011 Mammillaria maycobensis
June 2011 Mammillaria standleyi
May 2011 Mammillaria sinforosensis
April 2011 Mammillaria lindsayi
Mar 2011 Mammillaria hernandezii
Feb 2011 Mammillaria crinita (fma. leucantha)
Jan 2011 Mammillaria crinita (tezontle)
Dec 2010 Mammillaria crinita fma (variabilis)
Nov 2010 Mammillaria crinita ssp. wildii  
Oct 2010 Mammillaria crinita ssp. crinita  
Sept 2010 Mammillaria aureiceps

 

August 2010 No Mamm of the month  
July 2010 No Mamm of the month  
June 2010 Mammillaria zephyranthoides  
May 2010 No Mamm of the month  
April 2010 Mammillaria heidiae  
March 2010 Mammillaria wrightii ssp. wilcoxii

 

February 2010 Mammillaria wrightii  
January 2010 Mammillaria insularis  
December 2009 Mammillaria mazatlanensis  
November 2009 Mammillaria grahamii  
October 2009 Mammillaria capensis  
September 2009 Mammillaria blossfeldiana  
August 2009 Mammillaria tetrancistra  
July 2009  Mammillaria polythele (concluded)
June 2009 Mammillaria polythele (continued)
May 2009 No Mamm of the Month  
April 2009 Mammillaria sanchez-mejoradae
March 2009 No Mamm of the Month  
February 2009 Mammillaria polythele
January 2009 Mammillaria guelzowiana
December 2009 No Mamm of the Month.  
November 2008 Mammillaria fertilis (?)
October 2008 Mammillaria hahniana (Part 2)
Sept 2008 Mammillaria hahniana (Part 1)
August 2008 Mammillaria beneckei
July 2008 Mammillaria marksiana
June 2008 Mammillaria luethyi
May 2008 Mammillaria amajacensis
April 2008 Mammillaria boelderliana
Mar 2008 Mammillaria heyderi (Part 2)  img077 th
Feb 2008 Mammillaria heyderi (Part 1)
Jan 2008 Mammillaria roemeri
Dec 2007 Mammillaria lauii and its forms
Nov 2007 Mammillaria eriacantha ssp. velizii
Oct 2007 Mammillaria scheinvariana  schinvar
Sep 2007 Mammillaria vetula ssp lacostei

 

Aug 2007 Mammillaria dioica - new pink flowered form

 dioica

December 2014 Mammillaria longimamma baumii-th
November 2014  
November 2014 Mammillaria baumii baumii-th
September 2014 Mammillaria bertholdii M-bertholdii-th
August 2013 Mammillaria albicans ssp. albicans albicans2 th
July 2013 No Mamm of the Month  
June 2013 Mammillaria compressa ssp. centralifera centralifera th
May 2013 Mammillaria compressa ssp. compressa compressa th
April 2013  Mammillaria thomsonii n.n. 
March 2103 Mammillaria brachtytrichion
Feb 2013 No Mamm of the month  
January 2013 Mammillaria winterae ssp. winterae
December 2012 Mammillaria winterae ssp. aramberri
November 2012 Mammillaria pilispina
Sep & Oct 2012 No Mamm of the month  
Aug 2012 Mammillaria xanthina
July 2012 Mammillaria theresae
Jun 2012 Mammillaria elongata
May 2012 No Mamm of the month  
April 2012  Mammillaria stella-de-tacubaya
March 2012 No Mamm of the month  
February 2012 Mammillaria aureilanata
January 2012 Mammillaria wiesingeri ssp. wiesingeri
December 2011 Mammillaria wiesingeri ssp. apamensis
November 2011 Mammillaria mystax
October  2011 Mammillaria carnea
September 2011 No Mamm of the month  
August 2011 Mammillaria tesopacensis
July 2011 Mammillaria maycobensis
June 2011 Mammillaria standleyi
May 2011 Mammillaria sinforosensis
April 2011 Mammillaria lindsayi
Mar 2011 Mammillaria hernandezii
Feb 2011 Mammillaria crinita (fma. leucantha)
Jan 2011 Mammillaria crinita (tezontle)
Dec 2010 Mammillaria crinita fma (variabilis)
Nov 2010 Mammillaria crinita ssp. wildii  
Oct 2010 Mammillaria crinita ssp. crinita  
Sept 2010 Mammillaria aureiceps

 

August 2010 No Mamm of the month  
July 2010 No Mamm of the month  
June 2010 Mammillaria zephyranthoides  
May 2010 No Mamm of the month  
April 2010 Mammillaria heidiae  
March 2010 Mammillaria wrightii ssp. wilcoxii

 

February 2010 Mammillaria wrightii  
January 2010 Mammillaria insularis  
December 2009 Mammillaria mazatlanensis  
November 2009 Mammillaria grahamii  
October 2009 Mammillaria capensis  
September 2009 Mammillaria blossfeldiana  
August 2009 Mammillaria tetrancistra  
July 2009  Mammillaria polythele (concluded)
June 2009 Mammillaria polythele (continued)
May 2009 No Mamm of the Month  
April 2009 Mammillaria sanchez-mejoradae
March 2009 No Mamm of the Month  
February 2009 Mammillaria polythele
January 2009 Mammillaria guelzowiana
December 2009 No Mamm of the Month.  
November 2008 Mammillaria fertilis (?)
October 2008 Mammillaria hahniana (Part 2)
Sept 2008 Mammillaria hahniana (Part 1)
August 2008 Mammillaria beneckei
July 2008 Mammillaria marksiana
June 2008 Mammillaria luethyi
May 2008 Mammillaria amajacensis
April 2008 Mammillaria boelderliana
Mar 2008 Mammillaria heyderi (Part 2)  img077 th
Feb 2008 Mammillaria heyderi (Part 1)
Jan 2008 Mammillaria roemeri
Dec 2007 Mammillaria lauii and its forms
Nov 2007 Mammillaria eriacantha ssp. velizii
Oct 2007 Mammillaria scheinvariana  schinvar
Sep 2007 Mammillaria vetula ssp lacostei

 

Aug 2007 Mammillaria dioica - new pink flowered form

 dioica

 

Plant of the Month

(click here for previous Plants of the Month)

Mammillaria sphaerica

 

Mammillaria sphaerica in cultivation

 

Mammillaria sphaerica is fairly obviously related to Mammillaria longimamma, featured in our last Plant of the Month. It is however very distinct in where it comes from, as it's habitat is in southern Texas and Tamauilpas in northern Mexico.

It tends to grow smaller than its southern cousin, clumping less profusely, and making in time a clump of no more that 8" (20cm) or so. It has shorter tubecles, and unlike most forms of it's cousin, has a thick rootstock, though given enough room, it isn't a difficult plant to cultivate.

It is described as clustering, stems to 5cm in diameter, axils slightly woolly, radial spines 12 - 14, whitish to pale yellow, 6-9mm long, straight to slightly tortuous. There is one yellowish central spine, and its flowers are lemon yellow, 6-7cm wide.

 

Mammillaria sphaerica in habitat nearSan Antonio, Texas, USA

 

Mammillaria sphaerica

 sphaerica-th

 Plant of the Month

(click here for previous Plants of the Month)

Mammillaria longimamma

 

longimamma3

Mammillaria longimamm in cultivation

 

Mammillaria longimamma is probably one of the most popular species in the Dolicothele subgroup. It’s large yellow flowers open wide to a diameter of 2-3 inches on a good sunny day.

It comes from the states of Hidalgo and Queretaro, and is especially widespread around the Barrranca de Meztitlan.

It clusters both in cultivation and in habitat, forming mats of long tubercled heads (hence its name) to as much as 30cms or more. The tubercles have variable number of radial spines, between 6 and 10 have been observed, and the typical form has usually a single central spine, occasionally up to 3. It has a well known variety, var. uberiformis, and this has no central spine. This is not consistent, even within a single small group of plants, let alone a population, though a useful descriptive, it is best only used in that way, and not used as a species or subspecies.

Cultivation is quite easy, and it seems to like a reasonably rich compost, though still one with decent drainage. Then it will slowly offset, and reward you with those large flowers in mid summer.

longimamma1

Mammillaria longimamma CD12/129, west of Bellavista del Rio, Qro.

 

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