Identifying my Mammillarias

If you have a cactus plant and need help identifying it, this is the place to post it.
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

That's the plant n. #232. People say zielmanniana for it but I'm not convinced.

The plant has 3 centrals, the lower is hooked.

Description says 4 centrals, rarely 3. Color of spines and overall description matches.

But these rounded petals...
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7george
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Re: Identifying my Mammillarias

Post by 7george »

These features can vary between individual plants, also young and older plants. Number of centrals also depends on the sun exposure. Keys are often written looking at wild or just cultivated plants.

Image

I don't think that my plants are different from M. zeilmanniana.
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

Thank you, George. Thanks for commenting! My plant look similar to yours. And yours is very similar to most of the pictures of zielmanniana I see.
The rounded petals in my plant would be explained by intraspecific variability? Or hybridization is a possibility?
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greenknight
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Re: Identifying my Mammillarias

Post by greenknight »

Hybridization is always a possibility.
Spence :mrgreen:
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MikeInOz
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Re: Identifying my Mammillarias

Post by MikeInOz »

I said zeilmanniana as soon as I saw it.
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7george
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Re: Identifying my Mammillarias

Post by 7george »

mmcavall wrote: Sun Oct 25, 2020 1:48 am ...
The rounded petals in my plant would be explained by intraspecific variability? Or hybridization is a possibility?
Both are possible, including crossing between clones from different locations (fields ##) and M. zeilmanniana has been grown for many generations in culture.

Image
Centrals at many hooked Mammillaria first appear by 1, 2 or 3 per areole and just for fully mature plants and strong light become 4 or more in a bunch.
These above are rooted offsets from a bigger plant I lost.
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

Thank you Spence, Mike and George for the insights.
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

Beautiful plants, btw
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

That's the plant n. 403, in bloom today.
It has 2 centrals, white with brown tips, one upwards and one downwards; 26 radials; wooly tubercles. Flowers are white with pink midstripe but overall looks pale pink. Stigmas cream pink.
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I have started my search from M. haageana but flowers are described as deep to paler pink, and central spines as black and slender. It is not the case.
M. haageana subsp. elegant is described with much less radials (16 to 18) and flowers "bright rose-red with darker midstripe", which I don't know if is the case.
It fits better in M. chionocephala's description: centrals 2 to 4, white tipped brown, flowers pale rose-pink to white.

M. formosa description is quite different.
M. hahniana subsp. woodsii is a possibility but flower colors don't match.

Anyone have one of these species and could help me find a name for my plant? Thanks
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

Anyone? I would appreciate very much any input.
DaveW
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Re: Identifying my Mammillarias

Post by DaveW »

A good series on the Mammillaria hahniana group here:-

http://www.cactus-mall.com/mammsoc/mamm ... -Sep08.htm

http://www.cactus-mall.com/mammsoc/mamm ... -Oct08.htm

Also you can do a search among their Mammillaria's of the month. Click on the picture to open the link.

http://www.cactus-mall.com/mammsoc/motms.htm
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greenknight
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Re: Identifying my Mammillarias

Post by greenknight »

Mamms in this group have been given so many names, and are so variable, it makes my head hurt. ](*,) However, I think you may have hit it with M. chionocephala. That species is noted for being very woolly when mature, and this young plant is certainly headed that way. The hair-like bristles it should have are also visible on close inspection. Given a few more years, these characteristics should become much more apparent. The spines and flowers, as you've noted, are both within the range of variability of M. chionocephala. I would pencil that in as the tentative ID.
Spence :mrgreen:
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mmcavall
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Re: Identifying my Mammillarias

Post by mmcavall »

Thank you very much Dave and Spence! I really appreciate your comments. Make me feel like my effort is not in vain.
The picture of M. hahniana subsp bravoae is very close to my plant, but other pictures in the internet don't. Sure I can't decide now and will wait the plant to get more mature. This thread will continue. Thanks.
An observation: my other hahnianas bloomed months ago. Do all the subspecies of a given species have to flower in the same season?
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dinfelu
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Re: Identifying my Mammillarias

Post by dinfelu »

mammillaria chionocephala


I leave you a photo of my mammillaria for you to compare

regard
mammillaria (Copiar).png
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🌵 Gabriel
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dinfelu
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Re: Identifying my Mammillarias

Post by dinfelu »

mammillaria haageana var. elegans


I leave you a photo of my mammillaria haageana var. elegans

I hope it helps you
elegans (Copiar).png
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🌵 Gabriel
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