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 Mammillaria from Mexico 04 2018

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Valentinus



Number of posts : 8
Age : 53
Location : Russia
Registration date : 2018-08-25

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PostSubject: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeSat Aug 25, 2018 7:21 pm

Dear colleagues,
please help identify plants from Mexico.

road 190
near "Tancoyol de Serra"
Sierra Gorda Biosphere Reserve.
Keretaro, Mexico.
Mammillaria from Mexico 04 2018 5a10

Mammillaria from Mexico 04 2018 4a10

Mammillaria from Mexico 04 2018 1a10

Mammillaria from Mexico 04 2018 2a10

Mammillaria from Mexico 04 2018 3a10
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delandmo



Number of posts : 289
Age : 73
Location : Sutton, Surrey.
Registration date : 2011-06-05

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeSun Aug 26, 2018 10:36 pm

Possibly forms of m. magnimamma
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mammillariamaniac

mammillariamaniac

Number of posts : 94
Age : 22
Location : Hamburg, Germany
Registration date : 2016-08-19

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeMon Aug 27, 2018 9:29 am

1. Mam. priessnitzii?
2. 3. and 5. Mam. compressa
4. Mam. centralifera?
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Valentinus



Number of posts : 8
Age : 53
Location : Russia
Registration date : 2018-08-25

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeMon Aug 27, 2018 5:45 pm

Thanks Delandmo, thanks Jonathan!!!
I agree with the opinion of Jonathan.
I think 2-5 plants are form of M. compressa.
If I understand the M. magnimamma has curved spines, no?
This is M. magnimamma, yes?

27.02.2018
Near Mineral del Monte.
Hidalgo, Mexico.
Mammillaria from Mexico 04 2018 M_magn10
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woltertenhoeve



Number of posts : 270
Registration date : 2009-10-01

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeMon Aug 27, 2018 8:58 pm

I would call number 1 M. priessnitzii, number 2 and 5 centralifera. Number 3 and 4 are probably also centralifera, but it looks like they have shorter spines because they grow in a less exposed position. Of course, you might consider centralifera as no more than a form of compressa.
The Mineral del Monte plant I would call magnimamma. M. magnimamma often has curved spines, but I think that at some locations you can find them with nearly straight spines.

Wolter ten Hoeve.
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Valentinus



Number of posts : 8
Age : 53
Location : Russia
Registration date : 2018-08-25

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeTue Aug 28, 2018 10:06 am

Dear Wolter,
Thanks for your reply!
Probably this plant can be called M. compressa ssp. centralifera.

Here is another plant from this group that I do not know, perhaps M. magnimamma?

6.03.2018
Near Santa Maria del Rio
SLP, Mexico.

Mammillaria from Mexico 04 2018 M111
Mammillaria from Mexico 04 2018 M211
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woltertenhoeve



Number of posts : 270
Registration date : 2009-10-01

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeTue Aug 28, 2018 7:21 pm

In Pilbeam's book M. centralifera is indeed considered a subspecies of M. compressa.

I label the plant near Santa Maria del Rio as M. saint-pieana. Reppenhagen reported it from that area, and I found similar plants in that region. I found them at the beginning of the road to Cañada de Yañez, east of Santa Maria del Rio. But M. saint-pieana is probably no more than a form of M. gigantea.

Wolter.
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Valentinus



Number of posts : 8
Age : 53
Location : Russia
Registration date : 2018-08-25

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PostSubject: Re: Mammillaria from Mexico 04 2018   Mammillaria from Mexico 04 2018 Icon_minitimeTue Aug 28, 2018 8:48 pm

Dear Wolter,
Thanks for your ansver!
You are an excellent specialist!
I now regret that I did not collect this plant for my collection. Sad
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