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ABSTRACT
Artemisia nitida Bertol. has not been studied so far from a pharmaco-biological point of view. In the present work some results of morphological and histochemical studies on the secretory structures are given. The secretory structures are of two types: glandular trichomes, and secretory ducts whose secretion is quite similar but not identical. Taking all the precautions needed for the histochemical interpretation of the results, we can assume that the glandular trichomes and secretory ducts contain an oleoresin whose main constituents are terpenoids, steroids, and sesquiterpene lactones. Their presence in A. nitida justifies both biological and economic interest in this Italian species.