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CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria heyderi Muehlenpf.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Mammillaria heyderi var. heyderi | Mammillaria heyderi Muehlenpf. | 11 | Baker, 2009 | |||
| ! | Mammillaria heyderi var. bullingtoniana Castetter & P. Pierce & K. H. Schwer. | Mammillaria heyderi Muehlenpf. | 11 | IPCN online | Pinkava, D. J., B. D. Parfitt, M. A. Baker & R. D. Worthington. 1992. Chromosome numbers in some cacti of western North America---VI, with nomenclatural changes. Madroño 39(2): 98–113. | ||
| Mammillaria heyderi var. heyderi | Mammillaria heyderi Muehlenpf. | 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. heyderi | Mammillaria heyderi Muehlenpf. | 22 | IPCN75-78 | Weedin & Powell 1978a | ||
| ! | Mammillaria heyderi Muehlenpf. | Mammillaria heyderi Muehlenpf. | 22 | eFlora | |||
| ! | Mammillaria heyderi var. bullingtoniana Castetter & P. Pierce & K. H. Schwer. | Mammillaria heyderi Muehlenpf. | 22 | eFlora | |||
| Mammillaria heyderi var. heyderi | Mammillaria heyderi Muehlenpf. | 22 | eFlora | ||||
| ! | Mammillaria heyderi Muehlenpf. | Mammillaria heyderi Muehlenpf. | 22 | Fedorov, 1974 | Remski 1954 |