help me to identify these Mammillaria.

Can you help me to identify these plants?
The first is marked as M. lanata.



Also the second is marked M. lanata



Thank's
Marco

Well, Marco, Mammillaria lanata is one of those names that is considered to be a redescription of another species, Mammillaria supertexta. It was described as having 12-14 white spreading radial spines, and no central spines! so your plants look a bit different!

Mammillaria supertexta was described as having 2 short (2-3mm) central spines, and 16-18 radials.

Spine counts are not a certain way of identifying species, merely a guide, but I woud suggest that neither of your plants are lanata or supertexta. I think that they are both forms of that much more widespread and variable species Mammillaria labilanata ssp. oaxacana.

I suspect that somewhere along the way, a nurseryman has got confused between the name "lanala" and the name "albilanata".