Abstract
PART 3 of the "Experimental Studies in the Nature of Species" (the Environmental Responses of Climatic Races of Achillea", by J. Clausen, D. D.Keck and W. H. Hiesey, Carnegie Institute of Washington Publication 581, 1948) is a worthy member of a remarkable series of researches which is rapidly casting a flood of light on the dynamics of evolutionary processes. Starting with Turesson's concepts of ecotypes, etc., and from his simple technical approach to the detection of physiological subdivisions within the lowest taxonomic units, the effective collaboration of three very different members of a powerful team, amplified by the natural resources of California, have developed a series of refined techniques for revealing evolution in action in a way which has not been attempted elsewhere.
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MANTON, I. Climatic Races of Achillea. Nature 163, 582–583 (1949). https://doi.org/10.1038/163582a0
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DOI: https://doi.org/10.1038/163582a0