PROBLEMS OF TAXONOMY AND NOMENCLATURE IN CULTIVATED PLANTS

In cultivated plants, and particularly in ancient domesticates of economic importance, first classifications were based on insufficient data, mainly of a morphological nature. Later studies, chiefly in cytogenetics and phytochemistry, have led to a much greater understanding of genetical and evolutionary relationships. The generally simpler systems of classification resulting from such work have necessitated certain name changes, but should help to stabilize nomenclature in the future. A plea is made for the use of non-Linnaean systems of classification and nomenclature below the species or subspecies level.