mammillarias.net

Hello,

Does anybody know what happend to this website? mammillarias.net
Since some weeks there are errors.. In the past I found it very helpful and interesting. Is the owner Ralph Martin?

No, I don't. I will try to find out, because, as you say, there was a lot of useful information there.

Thank you Chris !

I have now been in touch by email with Franck Martin, the owner of mammillarias.net. The reason for the site's unavailability is that the service provider has made changes to their systems, and mammillarias.net will not run without change. The owner has been very busy and has not had the time to work on this, but plans to do so during some vacation time over the next month or two.
So there is hope, and I will keep in touch to see how things develop.
I'll post an update as and when.

Thank you for the effort! That are great news, I almost thought the site is gone...

Its back!!

http://www.mammillarias.net/

yep i'am back
http://www.mammillarias.net with new design   new picture gallery etc ...
i will need to find people to help to update/correct "species description" page  ...but still have to do an admin page to discuss with database easily , i will tell you about that when done ...

Also i put a direct link in the menu to this forum ( and for Chris also a link to mammillaria society
i hope you like !

Yes, I saw, thank you very much Franck, its a great resource.

Thanks a lot Franck, I like it !

Nice... It's one of my favorite tools

Glad to know it's back, it's a site I visit very often to check for descriptions and names.

I was trying to look up some of the Michel Lacoste habitat photos of mammillarias. But that old site with that very useful gallery is gone!
A new site mammillarias.net does exist, however, but this is an inferior site of a few pages in Spanish. The Mammillaria Society still has a link to mammillarias.net, but when you click on that link you get that rather useless new site. So, it would be better to remove that link.

Wolter.

Hi Wolter,
I don't think we'll see the new site developed. I've emailed the author a few time byt not had a reply.
However......back in 2008 I saved a number of the Lacoste images from the old site, and still have them on disk. The file names are from ML02 up to ML735, some gaps inevitably, but 496 images in all.
Are there any specific one you'd like which I could send to you. They aren't high quality jeps but might help. If there are then please email me.

Hello,
I also saved a lot of ML pictures some have been also sent to me by Wolfgang Plein, which have not been uploaded to the mammillarias.net website. Anyways I also have not every picture. Maybe we can swap pictures? I will upload a list which ones i have saved.

Did anyone save the data from the Fieldnumber Database of Franck Martin?
Thats what I am missing the most..

Hi Chris,

I was looking for habitat images of M. tezontle (ML 690).
The habitat photos which I possess are images of Geoff Bailey/John Miller from 2002 and of my own 2021 trip. These all showed plants which confirmed to the description: short, yellowish white radial and central spines. Yet, on the forum you see several tezontle photos which do not have these yellowish white spines, although the correct field numbers (WAF 1983 and ML 690) are attached. There is a good chance that these darker spined and different looking tezontles are hybrids.
I used to have two tezontles in my collection, which probably originated from habitat collected seed. They came from a cactus friend (he had several international contacts) who visited the region before the plants had been described. From these two plants I obtained seeds and I grew the next generation in 2014, see attached photo. From that next generation I obtained seeds and those seeds appeared in the list of the German mammillaria society. Someone grew plants from those seeds and of those plants there were some who had red-brown centrals, but otherwise they looked like normal tezontles.
Looking again at my photo, I see one plant which has a slightly darker central spine (see second photo). Therefore, I am afraid that there has been some hybridization in my so-called next generation. Or could it be that in habitat tezontle prefers to form yellowish white spines because it grows on a rock with whitish lichen, whereas it still has genes in it for red-brown centrals?

Wolter.    

So here is the image of ML690 saved from the old mammillarias.net website.



Very yellow spined indeed! It looks as if the photo was taken late in the day but still no real sign of brown in the spines.

mammillariamaniac wrote:

I also saved a lot of ML pictures some have been also sent to me by Wolfgang Plein, which have not uploaded to the mammillarias.net website. Anyways I also have not every picture. Maybe we can swap pictures? I will upload a list which ones i have saved.

Did anyone save the data from the Fieldnumber Database of Franck Martin?
Thats what I am missing the most..

Certainly, let me know which you want, maybe send me your email. And no, I don't have a copy of the fieldnumber database. Which collectors did it contain? I have a number of collectors lists which Wolfgang sent me some time ago, but tere is also the BCSS Field Number database which contains many Mammillarias. Is that of help to you?

Hey Wolter,

I rather believe in the theory of hybridization with your shown plants. The darker spined 'tezontle's are only known to me from the La Hoya Chica site. The article in KUAS 9/2022 by Thomas can very easily give this impression from the photos that the lichen would have influence on the spine color.

Kind regards Jonathan

here my pictures of the habitat of ML 690.

Chris43 wrote:

Certainly, let me know which you want, maybe send me your email. And no, I don't have a copy of the fieldnumber database. Which collectors did it contain? I have a number of collectors lists which Wolfgang sent me some time ago, but tere is also the BCSS Field Number database which contains many Mammillarias. Is that of help to you?

Thank you Chris I will write you an email rergarding my questions.
The field database contained a lot older field collections from the 1920s to the 60s that are not in other field database like the one from Ralph Martin or Christophe Ludwig.

Kind regards Jonathan

Here is the photo of the seedlings which were grown from the seeds which I had given to the German Mammillaria Society. Some of them are nicely yellowish white (as should be), others are much darker spined than the 'darkest' one of the previous generation. Hybridization or natural variation?

Wolter.  

I have these plants, grown from seeds around 2years old.
Seed source is Adblps.
It is listed as Mammillaria tezontle GK 9073'00 Ft4 ref-956

Hi Fatich,

Your plants certainly look like tezontle, yellowish white spination and very short central and radial spines. The corresponding photo in Aymeric de Barmon's seed list also looks OK for tezontle.
He also has tezontle WAF 1983 in his list, the photo also shows the correct tezontle.
But Aymeric also lists tezontle from La Purisima. Based on the photo in the list, this is not tezontle (different spine colour and length). La Purisima is only 3 km from the type location and Rogozinski has visited La Purisima in 1984. Many years later, he wrote in his 2003 report that he thought that the Purisima plants were tezontle. To show how complicated and confusing the situation is, less than 2 km from La Purisima and 5 km from the tezontle type location, you find plants at La Tinaja which I have listed as aff. crinita, Reppenhagen calls them knebeliana and Linzen calls them monancistracantha! In this almost flat region there are a few low hills and I think that on each hill (when they are so isolated that each of them is out of the flying range of pollinators) you can find a somewhat different mammillaria.

Wolter.