CCDB Header
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.


CCDBAngiospermsCompositaeSymphyotrichumSymphyotrichum × amethystinum

15 chromosome counts in Symphyotrichum × amethystinum:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
!   Aster amethystinus Nutt. Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10 Darlington, 1955 Wetmore & D. 1939 H
!   Aster × amethystinus N. (. S. ) Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10 IPCN online Chmielewski, J. G. 1986. Documented plant chromosome numbers 1986. 1. Miscellaneous counts in Aster (Compositae). Sida 11: 483–485.
!   Lasallea × amethystina (Nutt.) Semple & Brouillet Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10 IPCN online Semple, J. C. & L. Brouillet. 1980. Chromosome numbers and satellite chromosome morphology in Aster and Lasallea. Amer. J. Bot. 67(7): 1027–1039.
!   Symphyotrichum × amethystinum Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10 eFlora  
!   Symphyotrichum × amethystinum (N. ). G. L. N. (. A. E. A. novae-anglicae) Symphyotrichum × amethystinum (Nutt.) G. L. Nesom 5II(1) 10(1) Asteracea Wetmore & D. 1939 Amer. J. Bot.
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Semple et al. 1992 Rhodora
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Semple & B. 1980 Amer. J. Bot.
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Semple et al. 1989 Rhodora
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom 5II(1) 10(1) Asteracea Wetmore & D. 1939 Amer. J. Bot.
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Semple & B. 1980 Amer. J. Bot.
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Van Faasen 1963 Michigan Botanist
!   Symphyotrichum × amethystinum (Nutt.) G. L. Nesom Symphyotrichum × amethystinum (Nutt.) G. L. Nesom   10(1) Asteracea Semple & C. 2004 Rhodora
!   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.