Mammillaria sheldonii. Syn:Mammillaria grahamii sheldonii

Mammillaria sonorensis. 

Mammillaria mixed species including: alamensis, armillata, baxteriana, bocasana, columbiana, gasterantha, asiacantha, magnimamma, and others. Profusely flowering cacti, easy to grow.

Mammillaria spinosissima. 

Mammillaria spinosissima ssp pilcayensis           

Mammillaria spinosissima v. brunnea.

Mammillaria spinosissima v. rubispina. 

Mammillaria tezontle. 

Mammillaria uncinata

Mammillaria verhaertiana

Mammillaria wilcoxii

Mediolobiva albilongiseta.

Mediolobivia haagei