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  1. Chromosomes and phylogeny in Crepis. II. The relationships of one hundred eight species,
    By: Babcock, E. B. - Cameron, Donald Ross,
    Publication info: Berkeley, Calif.,University of California Press,1934.
    Contributed by: University of California, Davis Libraries (archive.org)
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  2. The chromosomes and relationship of Crepis syriaca (Bornm.)
    By: Cameron, Donald Ross,
    Publication info: Berkeley, Calif.,University of California press,1934.
    Contributed by: University of California, Davis Libraries (archive.org)
    View Book