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CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria heyderi var. meiacantha (Engelm.) L. D. Benson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Mammillaria heyderi var. meiacantha (Engelm.) L. D. Benson | Mammillaria heyderi subsp. meiacantha (Engelm.) D. R. Hunt | 11 | IPCN online | Pinkava, D. J., M. A. Baker, B. D. Parfitt, M. W. Mohlenbrock & R. D. Worthington. 1985. Chromosome numbers in some cacti of western North America-V. Syst. Bot. 10: 471–483. | ||
| ! | Mammillaria heyderi var. meiacantha (Engelm.) L. D. Benson | Mammillaria heyderi subsp. meiacantha (Engelm.) D. R. Hunt | 22 | IPCN online | Weedin, J. F. & A. M. Powell. 1978. Chromosome numbers in Chihuahuan desert Cactaceae. Trans-Pecos Texas. Amer. J. Bot. 65: 531–537. | ||
| ! | Mammillaria heyderi var. meiacantha (Engelm.) L. D. Benson | Mammillaria heyderi subsp. meiacantha (Engelm.) D. R. Hunt | 22 | IPCN75-78 | Weedin & Powell 1978a |