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CCDB → Angiosperms → Cactaceae → Melocactus → Melocactus zehntneri (Britton & Rose) Luetzelb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Melocactus zehntneri (Britton & Rose) Luetzelb. | Melocactus zehntneri (Britton & Rose) Luetzelb. | 44 | IAPT/IOPB | |||
| ! | Melocactus zehntneri (Britton & Rose) Luetzelb. | Melocactus zehntneri (Britton & Rose) Luetzelb. | 44 | IAPT/IOPB | |||
| Melocactus zehntneri (Britton & Rose) Luetzelb. | Melocactus zehntneri (Britton & Rose) Luetzelb. | 22, 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. | |||
| Melocactus douradaensis Hovens & Strecker | Melocactus zehntneri (Britton & Rose) Luetzelb. | 22 | IPCN online | Das, A. B., S. Mohanty & P. Das. 1998. Variation in karyotype and 4C DNA content in six species of Melocactus of the family Cactaceae. Cytologia 63: 9–16. |