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CCDB → Angiosperms → Cactaceae → Coryphantha → Coryphantha scheeri var. valida (Engelm.) Benson
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Coryphantha scheeri var. valida (Engelm.) Benson | Coryphantha robustispina subsp. scheeri (Lem.) N. P. Taylor | 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. |