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 → Symphyotrichum → Virgulus × amethystinus (Nutt.) Reveal & Keener
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Virgulus × amethystinus (Nutt.) Reveal & Keener | Symphyotrichum × amethystinum (Nutt.) G. L. Nesom | 10 | IPCN online | Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325. | ||
| ! | Virgulus × amethystinus (Nutt.) Reveal & Keener | Symphyotrichum × amethystinum (Nutt.) G. L. Nesom | 10 | IPCN online | Semple, J. C., J. G. Chmielewski & M. E. Lane. 1989. Chromosome number determinations in fam. Compositae, tribe Astereae. III. Additional counts and comments on generic limits and ancestral base numbers. Rhodora 91: 296–314. | ||
| ! | Virgulus × amethystinus (Nutt.) Reveal & Keener | Symphyotrichum × amethystinum (Nutt.) G. L. Nesom | 10 | IPCN online | Semple, J. C., J. G. Chmielewski & C. Xiang. 1992. Chromosome number determinations in fam. Compositae, tribe Astereae. IV. Additional reports and comments on the cytogeography and status of some species of Aster and Solidago. Rhodora 94: 48–62. |