CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Angiosperms → Compositae → Rayjacksonia → Haplopappus annuus (Rydb.) Cory
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Haplopappus annuus (Rydb.) Cory | Rayjacksonia annua (Rydb.) R. L. Hartm. & M. A. Lane | 12 | IPCN online | Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527. | |||
| Haplopappus annuus (Rydb.) Cory | Rayjacksonia annua (Rydb.) R. L. Hartm. & M. A. Lane | 6 | IPCN66 | E. B. Smith 1966a | |||
| Haplopappus annuus (Rydb.) Cory | Rayjacksonia annua (Rydb.) R. L. Hartm. & M. A. Lane | 6 | IPCN73-74 | ANDERSON, L.C., D.W. KYHOS, T. MOSQUIN, A.M. POWEL~, & P.H. RAVEN. 1974. Chromosome numbers in Compositae. IX Haplopappus and other Astereae. Amer. J. Bot. 61: 665-671. | |||
| ! | Haplopappus annuus (Rydb.) Cory | Rayjacksonia annua (Rydb.) R. L. Hartm. & M. A. Lane | 12 | Fedorov, 1974 | Jackson R. C. 1966 |