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Hi,
I need some help with some ID's on two seedlings that cropped up in a batch of Mammillaria crucigera seed. At first I thought they were some random Mammillaria but as they matured I became less unsure. I thought the one with the long red spines was possibly a Thelocactus. Any help would be appreciated.

1 Mammillaria johnstonii?
2 Mammillaria polythele inermis?
Show them 1-2 years again, better with flowers

Thanks for that. Flowers would definitely make things easier. Hopefully they are not too far off.

anttisepp wrote: ↑Sun Jan 28, 2024 9:52 am 1 Mammillaria johnstonii?
2 Mammillaria polythele inermis?
Show them 1-2 years again, better with flowers

Your first hunch seems correct based on the long, and curved central spines.

The second ID does not look as accurate. The form of M. magnimamma which was once called M. zuccariniana seems a little closer.

Thanks Tom in Tucson. They are both interesting Mammillarias that I hadn't heard of before so a nice surprise.