Taxonomic status: Unresolved

homotypic synonyms:
Mammillaria microcarpa subsp. grahamii (Engelm.) Mottram; Mammillaria microcarpa Engelm.; Neomammillaria microcarpa (Engelm.) Britton & Rose;

protologue: Sukkulentenkunde 5: 12 (1954)
URL protologue: https://www.cactuspro.com/biblio_fichiers/pdf/SukkJSKG/SukkJSKG-1957_O.pdf

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