CCDB → Angiosperms → Rubiaceae → Cephalanthus → Cephalanthus occidentalis L.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Cephalanthus occidentalis L. | Cephalanthus occidentalis L. | 44 | IPCN online | GERVAIS, C., R. Trahan & J. Gagnon. 1999. IOPB chromosome data 14. Newslett. Int. Organ. Pl. Biosyst. (Oslo) 30: 10–15. | |||
| Cephalanthus occidentalis L. | Cephalanthus occidentalis L. | 22 | IPCN online | Ornduff, R. 1980. In Chromosome number reports LXVIII. Taxon 29: 534–535. | |||
| Cephalanthus occidentalis L. | Cephalanthus occidentalis L. | 44 | IPCN online | Ehrendorfer. 1988. Affinities of the African dendroflora: suggestions from karyo- and chemosystematics. Monogr. Syst. Bot. Missouri Bot. Gard. 25: 105–127. | |||
| Cephalanthus occidentalis L. | Cephalanthus occidentalis L. | 44 | Fedorov, 1974 | Fagerlind 1937 | |||
| ! | Cephalanthus occidentalis L. | Cephalanthus occidentalis L. | 44 | Darlington, 1955 | Fagerlind 1937 |