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CCDB → Angiosperms → Cactaceae → Coryphantha → Coryphantha cornifera var. echinus (Engelm.) L. D. Benson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Coryphantha cornifera var. echinus (Engelm.) L. D. Benson | Coryphantha echinus (Engelm.) Orcutt | 11 | IPCN online | Ross, R. 1981. Chromosome counts, cytology and reproduction in the Cactaceae. Amer. J. Bot. 68: 463–470. | ||
| ! | Coryphantha cornifera var. echinus (Engelm.) L. D. Benson | Coryphantha echinus (Engelm.) Orcutt | 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. |