Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics
CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous, please submit new counts, or report erroneous counts.
CCDB → Angiosperms → Cactaceae → Mammillaria → Mammillaria grahamii Engelm.
6 chromosome counts in Mammillaria grahamii Engelm.:
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Mammillaria grahamii Engelm. | Mammillaria grahamii Engelm. | 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. | |||
| Mammillaria microcarpa Engelm. | Mammillaria grahamii Engelm. | 11 | IPCN online | Pinkava, D. J., L. A. MCGILL & T. REEVES. 1977. Chromosome numbers in some cacti of western North America---III. Bull. Torrey Bot. Club 104: 105–110. | |||
| Mammillaria grahamii Engelm. | Mammillaria grahamii Engelm. | 22 | IPCN75-78 | Weedin & Powell 1978a | |||
| Mammillaria microcarpa Engelm. | Mammillaria grahamii Engelm. | 11 | IPCN75-78 | Pinkava et al. 1977 | |||
| ! | Mammillaria grahamii Engelm. | Mammillaria grahamii Engelm. | 22 | eFlora | |||
| Mammillaria microcarpa Engelm. | Mammillaria grahamii Engelm. | 22 | Fedorov, 1974 | Remski 1954 |