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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.


CCDBAngiospermsRanunculaceaeHelleborusHelleborus cyclophyllus Boiss.

3 chromosome counts in Helleborus cyclophyllus Boiss.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Helleborus cyclophyllus Boiss. Helleborus cyclophyllus Boiss.   32 IPCN online Van Loon, J. C. 1982. In IOPB chromosome number reports LXXVII. Taxon 31: 763–764.
  Helleborus cyclophyllus Boiss. Helleborus cyclophyllus Boiss.   32 IPCN online Strid, A. & R. Franzen. 1981. In Chromosome number reports LXXIII. Taxon 30: 829–842.
!   Helleborus cyclophyllus Boiss. Helleborus cyclophyllus Boiss.   32 C-values database Zonneveld BJM. 2001. Nuclear DNA contents of all species of Helleborus (Ranunculaceae) discriminate between species and sectional divisions. Plant Systematics and Evolution 229: 125-130.