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It is considered that many evolutionary changes in plants, including the division of labour and neoteny, result from restricting the site of development of a hereditary property or by moving it to another part of the plant-body. This principle of transference of function is explained by examples from the flower (especially Saraca) fruit, seed, leaf, and venation (Ficus) of angiosperms. Systematic morphology should seek to define the original properties, their sites and their transfers.
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E. J. H. Corner (1958) studied this question.
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