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 Mammillaria heyderi ssp?

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cactguy

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PostSubject: Mammillaria heyderi ssp?   Mammillaria heyderi ssp? Icon_minitimeSun Feb 24, 2013 10:11 pm

Does anyone know which M. heyderi this is? It was found in Denton County, Texas.

Mammillaria heyderi ssp? Img_8410


Mammillaria heyderi ssp? Tumblr10


Thanks for your help,
Dustin
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walter hellinx



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PostSubject: Re: Mammillaria heyderi ssp?   Mammillaria heyderi ssp? Icon_minitimeTue Feb 26, 2013 2:45 am

Heelo Dustin
Might be Escobaria
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Chris43
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Chris43

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PostSubject: Re: Mammillaria heyderi ssp?   Mammillaria heyderi ssp? Icon_minitimeTue Feb 26, 2013 10:07 am

Hi Dustin,

If you look closely (certainly at the plant in your first photo), you can see a grove on the upper side of the tubercle. That would mean that it isn't a Mammillaria, but either a Coryphantha or Escobaria.
I think that this is Escobaria missouriensis, though I haven't heard of a population in Denton Co., the area from which is has been most frequently reported is Lafayette Co, se of Austin. But it is a widely distributed species, though not as widely as EScobaria vivipara, so I think my identification is likely to be right.


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cactguy

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Number of posts : 24
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Registration date : 2012-03-10

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PostSubject: Re: Mammillaria heyderi ssp?   Mammillaria heyderi ssp? Icon_minitimeThu Mar 14, 2013 10:55 pm

Thanks, Chris. The individual who found the colony is pretty confident someone had placed the mother plant there, so it could certainly be E. missouriensis. Thanks for your help.
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