Next unknown

I got this plant from a friend of mine. He couldn't recognise it, nor do I. Maybe somebody could say something about it?

Well, it is very beautiful, though no idea what it is.

My first thought was something like brauneana, which I know isn't a very well liked name these days, and has been described as a longer spined klissingiana, but with fewer raidals as well 20-30 rather than 30-35.
M. bravoe has, I think, shorter spines than this, although it might just be the size of the plant making them look longish - it's a young plant I guess?

It is probably Mammillaria quevedoi, referred by Craig to M. bravoae and by Hunt to M. hahniana ssp. bravoae. You are right Chris, it is very young plant.

Was this a Reppenhagen nomen nudum? I see that he referred to it as a synonym in Vol 2 of his Gattung Mammillaria, but as I don't have that volume yet, I can find no more about it. Though I have seen it as being referred to Schmoll, who agave many plants he was involved in, a range of names. Maybe he di dso and it was never published, hence the n.n.
And Leszek, what was your source for it? I found this photo on teh web, but it really doesn't look like yours or indeed any obvious bravoe or hahniana form to my eye at least.
http://www.cana.cz/gallery/displayimage.php?album=26&pos=260

Chris, a friend of mine brought me this plant from Czech. He had lost the label and found it last week. After I saw your photo of M. quevedoi, I have doubts about authenticity of that label.

Leszek

Well, one label is wrong, but I think that your plant looks closer to bravoe than that in the web page I found. So yours may well be right!

Thank you Chris.