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CCDB → Angiosperms → Cactaceae → Melocactus → Melocactus oreas Miq.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Melocactus oreas Miq. | Melocactus oreas Miq. | 44 | IAPT/IOPB | ||||
| Melocactus oreas Miq. | Melocactus oreas Miq. | 44 | IAPT/IOPB | ||||
| Melocactus oreas subsp. oreas | Melocactus oreas Miq. | 44 | IPCN online | Assis, J. G. A., A. L. P. C. Oliveira, S. V. Resende, J. F. V. Senra & M. Machado. 2003. Chromosome numbers in Brazilian Melocactus (Cactaceae). Bradleya 21/2003: 1–6. |