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CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria thornberi Orcutt
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Mammillaria thornberi Orcutt | Mammillaria thornberi Orcutt | 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 thornberi Orcutt | Mammillaria thornberi Orcutt | 22 | eFlora |