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.



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.

To all members.


The Mammillaria Society and the General Data Protection Regulation, 2018

As you will probably know, new regulations about how organisations use the data they keep about individuals are due to take effect on the 25thMay 2018. At the moment, the Society holds information provided by the membership including:


·        Name (Including title as appropriate)

·        Full Address including post code and country.

·        Whether you pay tax (for Gift Aid)

·        Email address (where given).

·        Telephone number (where given)

·        The years of membership


This information is primarily held by the Membership Secretary. Names and addresses are passed from the Membership Secretary to the Production Editor so that he can send you the Journal each quarter. Your cash or cheque payments are banked by the Membership Secretary, who is also informed when payment is made by Paypal.


The Treasurer manages the finances, and has visibility of these payments but stores no details from these payments other than that which is accessible via Paypal or on our Bank statements.


On the occasion of our annual seed offer, members are requested to provide names and addresses as part of their order from this offer. These are not retained by the Seed Distributor.


No information is provided by any of the named Officials to any third party, other than the HMRC.


Whilst you are a member, the Society needs to use your data to provide the services described above. If you leave the Society, you have the right to erasure (also known as the ‘right to be forgotten’). You must contact the Membership Secretary to request that this be done. Otherwise, you don’t need to do anything, unless you aren’t happy with us holding this data, in which case please contact us.


Chris Davies


This page contains links to websites that expand our understanding of Mammillarias.


Dr David Hunt's Huitzilopochtlia is now avaialable to download at the Cactus Explorers website.

Mammillarias.net is a great resource for the genus, and has a lot of species data, descriptions, etc including distribution maps.

CactiGuide is a useful source of information for many cactus species including Mammillaria

Sorry but "hot-linking" to documents and images is not allowed.

To access this document or image you will need to log-in and access it from the originating page.

Members Sign-Up

Members of the Mammillaria Society are invited to join the website to receive members-only services.

Click the Join button below and fill in your details. 

You must put your full name in the Name field to be registered as a member. The User-Name can be anything and it is this that is viewable by other members. Join the website