Appreciate your assistance to ID 2 Mamms. Thanks.

Would appreciate your expertise to ID 2 Mamms.
#1

#2

Thank you. Regards. Ham.

Hi cactiham,
no.2 is m. karwinksiana.
no.1 slightly more difficult from photo angle but possibly m. rekoi.

Thanks, Delandmo. Another  photo.

I'd go with M. rekoi as well I did wonder about M. bella (nunezii) but the flowers look more like rekoi to me.

Thank you , Chris. Would need help to ID 2 more Mamms.
#3

#4

Thanks. Ham

#3 is a form of M. discolour, I believe.
However, I can't immediately identify #4. From radial the spines, and flower, I wondered about it being one of the Lasiacanthae plants, but the central spines aren't right. Now I am thinking of M. mammillaris.

Far from me to question the experts, but couldn't #3 be an elongated M. decipiens and #4 a M. vetula subsp. gracilis "Arizona Snowcap"?

You are right, Fabio, I wrote the wrong name. Yes, it could be that cultivar. I think I'll go back to sleep!! I blame jetlag, just got back from the US.