I thought I saw somewhere here that you are looking for fruit, flower, young, seedling etc photos to make ID easier. This is the first time my M microthele came out with fruits and I see you do not have them on the guide. If you can use this photo, glad to help!
Shmuel
Mammillaria formosa ssp microthele
Mammillaria formosa ssp microthele
Amazing plants, amazing form, amazing flowers...
Amazing cacti!
Amazing cacti!