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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.


CCDB → Angiosperms → Ulmaceae → Ulmus → Ulmus americana L.

10 chromosome counts in Ulmus americana L.:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Ulmus americana L. Ulmus americana L.   56 IPCN online Löve, A. & D. Löve. 1982. In: IOPB chromosome number reports LXXIV. Taxon 31: 120–126.
  Ulmus americana L. Ulmus americana L.   56 IPCN online Karnosky, D. F. 1979. Dutch elm disease: A review of the history, enviromental implications control and research needs. Environ. Conservation 6: 311–322.
!   Ulmus americana L. Ulmus americana L.   56 eFlora  
  Ulmus americana L. Ulmus americana L.   28 Fedorov, 1974 Krause 1931
  Ulmus americana L. Ulmus americana L.   56 Fedorov, 1974 Walker 1932
  Ulmus americana L. Ulmus americana L.   56 Fedorov, 1974 Sax K. 1933a
  Ulmus americana L. Ulmus americana L.   56 Fedorov, 1974 D'Amato 1940a
  Ulmus americana L. Ulmus americana L.   56 Fedorov, 1974 LOve A. 1954b
!   Ulmus americana L. Ulmus americana L.   28 Darlington, 1955 Krause 1930
!   Ulmus americana L. Ulmus americana L.   56 Darlington, 1955 Sax 1933a