Mammillaria microthele Mart. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Mammillaria species Mammillaria formosa Name Homonyms Mammillaria microthele Muehlenpf. ex Tiegel Mammillaria microthele Monv. ex C.F.Först. & Rümpler Mammillaria microthele Mart. Mammillaria microthele Monv. Mammillaria microthele Muehlenpf.