Mammillaria freudenbergii Repp. in Kakteen And. Sukk. 38: 255. 1987 Mammillaria freudenbergii Repp. in Kakteen And. Sukk. 38: 255. 1987is correct spelling for Mammillaria freudenbergeri Repp. in Kakteen And. Sukk. 38: 255. 1987Taxon for this nameMammillaria freudenbergii Repp.