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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.


CCDBAngiospermsCompositaeMachaerantheraMachaeranthera gracilis (Nutt.) Shinners

4 chromosome counts in Machaeranthera gracilis (Nutt.) Shinners:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners   error in parsing IPCN online Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II   IPCN online Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II+1I   IPCN online Keil, D. J., M. A. Luckow & D. J. Pinkava. 1988. Chromosome studies in Asteraceae from the United States, Mexico, the West Indies, and South America. Amer. J. Bot. 75: 652–668.
  Machaeranthera gracilis (Nutt.) Shinners Machaeranthera gracilis (Nutt.) Shinners 2II   IPCN online Semple, J. C., C. Xiang, J. Zhang, M. Horsburgh & R. Cook. 2001. Chromosme number determinations in Fam. Compositae, tribe Astereae. VI. Western North American taxa and comments on generic treatments of North American asters. Rhodora 103: 202–218.