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CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria caput-medusae Otto
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Mammillaria caput-medusae Otto | Mammillaria sempervivi DC. | 22 | Fedorov, 1974 | Remski 1954 |