Possible Cochemiea grahamii and others, ID request

If you have a cactus plant and need help identifying it, this is the place to post it.
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Location: La Antigua Guatemala

Possible Cochemiea grahamii and others, ID request

Post by Glorioustache »

Hello everyone, I have had these guys for some months now and I am still unable to identify them with 100% certainty.
PSX_20220510_135625.jpg (94.49 KiB) Viewed 253 times
PSX_20220510_135640.jpg (92.74 KiB) Viewed 253 times
I think this first one could be a form of Cochemiea grahamii, previously known as Mammillaria grahamii.
PSX_20220510_135650.jpg (94.54 KiB) Viewed 253 times
PSX_20220510_135703.jpg (114.92 KiB) Viewed 253 times
This one, I have no idea lol but it is definitely not an M. zeilmanniana but something else...
PSX_20220510_135613.jpg (108.36 KiB) Viewed 253 times
PSX_20220510_135604.jpg (90.1 KiB) Viewed 253 times
And finally I think this one is a Mammillaria duoformis "Tenango Del Valle" but still not 100% certain. It has double red hooked spines on each areole.

I would greatly appreciate any input on what they could be
Location: Central highlands of Guatemala, 14°N from the equator. Altitude: 1539M AMSL. Climate: Cwb, Subtropical Highland variety. Humidity: 100%
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Re: Possible Cochemiea grahamii and others, ID request

Post by mmcavall »

Not sure I can help. My M. grahamii is more rounded and covered with white spines. But I grow them hard. Maybe yours are more protected from the sun than my plants. Maybe you have to wait for the flowers.
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Re: Possible and others, ID request

Post by 7george »

The first might be a Cochemiea grahamii, they all have different spines even from one place. For the second I thought also about M. zeilmanniana (or Mammillaria nunezii, M. rekoi). Third reminds me M. tetrancistra or blossfeldiana.
If your cacti mess in your job just forget about the job.
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