Mammillaria roemeri

This is in flower today, but not quite warm enough to get the flowers fully open. This is a plant I raised from Koehres seed in 2006, but this is it's best display so far!



Hunt says that this is only a neotonic (juvenile form which remains so) form of Mammillaria lasiacantha. I think that the flower position and its later flowering (in general) does certainly distinguish it, as well as the spination, so I have kept the name rather than lumping it in with the rest. Even on the bench it looks different, but clearly related.

But what do I know as an amateur?!

What a beautiful plant and what a great "amateur" Chris43 . Congratulations

I hope my seeds give one or two plants as beautiful as yours ...but I feel so small ....

Mam. roemeri in habitat 5 weeks ago, they flowered mid januari

Good evening

Thank you for this photo "in situ" (I seem to have seen three Mammillaria -?-).

It seems to me that the soil does not contain much organic matter ..... Is it alkaline?