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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.


CCDBAngiospermsCompositaeFleischmanniaEupatorium pycnocephalum Less.

5 chromosome counts in Eupatorium pycnocephalum Less.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Eupatorium pycnocephalum Less. Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. 10II   IPCN online Sundberg, S. D., C. P. Cowan & B. L. Turner. 1986. Chromosome counts of Latin American Compositae. Amer. J. Bot. 73(1): 33–38.
  Eupatorium pycnocephalum Less. Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. 20, 21   IPCN online Jansen, R. K., T. F. Stuessy, S. Díaz-Piedrahíta & V. A. Funk. 1984. Recuentos cromosómicos en Compositae de Colombia. Caldasia 14(66): 7–20.
  Eupatorium pycnocephalum Less. Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. 10   IPCN online Ward, D. E. & R. Spellenberg. 1988. Chromosome counts of angiosperms from New Mexico and adjacent areas. Phytologia 64: 390–398.
  Eupatorium pycnocephalum Less. Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. 20   IPCN67-71 POWELL, A.M., & R.M. KING. 1969. Chromosome numbers in the Compositae: Colombian species. Amer. J. Bot. 56: 116-121.
  Eupatorium pycnocephalum Less. Fleischmannia pycnocephala (Less.) R. M. King & H. Rob. 20   Cave1962 Turner et al. 1962