Mammillaria aggregata Engelm. ex S.Watson in Smithsonian Misc. Collect. 15: 398. 1878
Mammillaria aggregata in Smithsonian Misc. Collect. 15: 398. 1878
is new combination for Mammillaria aggregata, Emory, Mil. Reconn.: 156. 1848
Mammillaria aggregata in Smithsonian Misc. Collect. 15: 398. 1878
Taxon for this name